1 /* Broadcom NetXtreme-C/E network driver.
3 * Copyright (c) 2014-2016 Broadcom Corporation
4 * Copyright (c) 2016-2017 Broadcom Limited
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
11 #include <linux/module.h>
13 #include <linux/stringify.h>
14 #include <linux/kernel.h>
15 #include <linux/timer.h>
16 #include <linux/errno.h>
17 #include <linux/ioport.h>
18 #include <linux/slab.h>
19 #include <linux/vmalloc.h>
20 #include <linux/interrupt.h>
21 #include <linux/pci.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/skbuff.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/bitops.h>
28 #include <linux/irq.h>
29 #include <linux/delay.h>
30 #include <asm/byteorder.h>
32 #include <linux/time.h>
33 #include <linux/mii.h>
35 #include <linux/if_vlan.h>
36 #include <linux/rtc.h>
37 #include <linux/bpf.h>
41 #include <net/checksum.h>
42 #include <net/ip6_checksum.h>
43 #include <net/udp_tunnel.h>
44 #include <linux/workqueue.h>
45 #include <linux/prefetch.h>
46 #include <linux/cache.h>
47 #include <linux/log2.h>
48 #include <linux/aer.h>
49 #include <linux/bitmap.h>
50 #include <linux/cpu_rmap.h>
55 #include "bnxt_sriov.h"
56 #include "bnxt_ethtool.h"
60 #define BNXT_TX_TIMEOUT (5 * HZ)
62 static const char version[] =
63 "Broadcom NetXtreme-C/E driver " DRV_MODULE_NAME " v" DRV_MODULE_VERSION "\n";
65 MODULE_LICENSE("GPL");
66 MODULE_DESCRIPTION("Broadcom BCM573xx network driver");
67 MODULE_VERSION(DRV_MODULE_VERSION);
69 #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN)
70 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD
71 #define BNXT_RX_COPY_THRESH 256
73 #define BNXT_TX_PUSH_THRESH 164
108 /* indexed by enum above */
109 static const struct {
112 { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" },
113 { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" },
114 { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
115 { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" },
116 { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" },
117 { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" },
118 { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" },
119 { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" },
120 { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" },
121 { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" },
122 { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" },
123 { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" },
124 { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" },
125 { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" },
126 { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" },
127 { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" },
128 { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" },
129 { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
130 { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" },
131 { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" },
132 { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" },
133 { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" },
134 { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" },
135 { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" },
136 { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" },
137 { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" },
138 { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" },
139 { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
140 { "Broadcom NetXtreme-E Ethernet Virtual Function" },
141 { "Broadcom NetXtreme-C Ethernet Virtual Function" },
144 static const struct pci_device_id bnxt_pci_tbl[] = {
145 { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR },
146 { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 },
147 { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 },
148 { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 },
149 { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR },
150 { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 },
151 { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 },
152 { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 },
153 { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 },
154 { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 },
155 { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 },
156 { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR },
157 { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 },
158 { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 },
159 { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 },
160 { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 },
161 { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 },
162 { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR },
163 { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 },
164 { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP },
165 { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP },
166 { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR },
167 { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR },
168 { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP },
169 { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR },
170 { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR },
171 { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR },
172 { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR },
173 { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR },
174 { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR },
175 { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 },
176 { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 },
177 #ifdef CONFIG_BNXT_SRIOV
178 { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF },
179 { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF },
180 { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF },
181 { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF },
182 { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF },
183 { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF },
188 MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl);
190 static const u16 bnxt_vf_req_snif[] = {
193 HWRM_CFA_L2_FILTER_ALLOC,
196 static const u16 bnxt_async_events_arr[] = {
197 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE,
198 ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD,
199 ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED,
200 ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE,
201 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,
204 static bool bnxt_vf_pciid(enum board_idx idx)
206 return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF);
209 #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
210 #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
211 #define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS)
213 #define BNXT_CP_DB_REARM(db, raw_cons) \
214 writel(DB_CP_REARM_FLAGS | RING_CMP(raw_cons), db)
216 #define BNXT_CP_DB(db, raw_cons) \
217 writel(DB_CP_FLAGS | RING_CMP(raw_cons), db)
219 #define BNXT_CP_DB_IRQ_DIS(db) \
220 writel(DB_CP_IRQ_DIS_FLAGS, db)
222 const u16 bnxt_lhint_arr[] = {
223 TX_BD_FLAGS_LHINT_512_AND_SMALLER,
224 TX_BD_FLAGS_LHINT_512_TO_1023,
225 TX_BD_FLAGS_LHINT_1024_TO_2047,
226 TX_BD_FLAGS_LHINT_1024_TO_2047,
227 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
228 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
229 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
230 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
231 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
232 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
233 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
234 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
235 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
236 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
237 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
238 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
239 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
240 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
241 TX_BD_FLAGS_LHINT_2048_AND_LARGER,
244 static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
246 struct bnxt *bp = netdev_priv(dev);
248 struct tx_bd_ext *txbd1;
249 struct netdev_queue *txq;
252 unsigned int length, pad = 0;
253 u32 len, free_size, vlan_tag_flags, cfa_action, flags;
255 struct pci_dev *pdev = bp->pdev;
256 struct bnxt_tx_ring_info *txr;
257 struct bnxt_sw_tx_bd *tx_buf;
259 i = skb_get_queue_mapping(skb);
260 if (unlikely(i >= bp->tx_nr_rings)) {
261 dev_kfree_skb_any(skb);
265 txq = netdev_get_tx_queue(dev, i);
266 txr = &bp->tx_ring[bp->tx_ring_map[i]];
269 free_size = bnxt_tx_avail(bp, txr);
270 if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) {
271 netif_tx_stop_queue(txq);
272 return NETDEV_TX_BUSY;
276 len = skb_headlen(skb);
277 last_frag = skb_shinfo(skb)->nr_frags;
279 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
281 txbd->tx_bd_opaque = prod;
283 tx_buf = &txr->tx_buf_ring[prod];
285 tx_buf->nr_frags = last_frag;
289 if (skb_vlan_tag_present(skb)) {
290 vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN |
291 skb_vlan_tag_get(skb);
292 /* Currently supports 8021Q, 8021AD vlan offloads
293 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated
295 if (skb->vlan_proto == htons(ETH_P_8021Q))
296 vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT;
299 if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh) {
300 struct tx_push_buffer *tx_push_buf = txr->tx_push;
301 struct tx_push_bd *tx_push = &tx_push_buf->push_bd;
302 struct tx_bd_ext *tx_push1 = &tx_push->txbd2;
303 void *pdata = tx_push_buf->data;
307 /* Set COAL_NOW to be ready quickly for the next push */
308 tx_push->tx_bd_len_flags_type =
309 cpu_to_le32((length << TX_BD_LEN_SHIFT) |
310 TX_BD_TYPE_LONG_TX_BD |
311 TX_BD_FLAGS_LHINT_512_AND_SMALLER |
312 TX_BD_FLAGS_COAL_NOW |
313 TX_BD_FLAGS_PACKET_END |
314 (2 << TX_BD_FLAGS_BD_CNT_SHIFT));
316 if (skb->ip_summed == CHECKSUM_PARTIAL)
317 tx_push1->tx_bd_hsize_lflags =
318 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
320 tx_push1->tx_bd_hsize_lflags = 0;
322 tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
323 tx_push1->tx_bd_cfa_action = cpu_to_le32(cfa_action);
325 end = pdata + length;
326 end = PTR_ALIGN(end, 8) - 1;
329 skb_copy_from_linear_data(skb, pdata, len);
331 for (j = 0; j < last_frag; j++) {
332 skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
335 fptr = skb_frag_address_safe(frag);
339 memcpy(pdata, fptr, skb_frag_size(frag));
340 pdata += skb_frag_size(frag);
343 txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type;
344 txbd->tx_bd_haddr = txr->data_mapping;
345 prod = NEXT_TX(prod);
346 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
347 memcpy(txbd, tx_push1, sizeof(*txbd));
348 prod = NEXT_TX(prod);
350 cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod);
354 netdev_tx_sent_queue(txq, skb->len);
355 wmb(); /* Sync is_push and byte queue before pushing data */
357 push_len = (length + sizeof(*tx_push) + 7) / 8;
359 __iowrite64_copy(txr->tx_doorbell, tx_push_buf, 16);
360 __iowrite32_copy(txr->tx_doorbell + 4, tx_push_buf + 1,
361 (push_len - 16) << 1);
363 __iowrite64_copy(txr->tx_doorbell, tx_push_buf,
371 if (length < BNXT_MIN_PKT_SIZE) {
372 pad = BNXT_MIN_PKT_SIZE - length;
373 if (skb_pad(skb, pad)) {
374 /* SKB already freed. */
378 length = BNXT_MIN_PKT_SIZE;
381 mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE);
383 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) {
384 dev_kfree_skb_any(skb);
389 dma_unmap_addr_set(tx_buf, mapping, mapping);
390 flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD |
391 ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT);
393 txbd->tx_bd_haddr = cpu_to_le64(mapping);
395 prod = NEXT_TX(prod);
396 txbd1 = (struct tx_bd_ext *)
397 &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
399 txbd1->tx_bd_hsize_lflags = 0;
400 if (skb_is_gso(skb)) {
403 if (skb->encapsulation)
404 hdr_len = skb_inner_network_offset(skb) +
405 skb_inner_network_header_len(skb) +
406 inner_tcp_hdrlen(skb);
408 hdr_len = skb_transport_offset(skb) +
411 txbd1->tx_bd_hsize_lflags = cpu_to_le32(TX_BD_FLAGS_LSO |
413 (hdr_len << (TX_BD_HSIZE_SHIFT - 1)));
414 length = skb_shinfo(skb)->gso_size;
415 txbd1->tx_bd_mss = cpu_to_le32(length);
417 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
418 txbd1->tx_bd_hsize_lflags =
419 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
420 txbd1->tx_bd_mss = 0;
424 flags |= bnxt_lhint_arr[length];
425 txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
427 txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
428 txbd1->tx_bd_cfa_action = cpu_to_le32(cfa_action);
429 for (i = 0; i < last_frag; i++) {
430 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
432 prod = NEXT_TX(prod);
433 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
435 len = skb_frag_size(frag);
436 mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len,
439 if (unlikely(dma_mapping_error(&pdev->dev, mapping)))
442 tx_buf = &txr->tx_buf_ring[prod];
443 dma_unmap_addr_set(tx_buf, mapping, mapping);
445 txbd->tx_bd_haddr = cpu_to_le64(mapping);
447 flags = len << TX_BD_LEN_SHIFT;
448 txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
452 txbd->tx_bd_len_flags_type =
453 cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags |
454 TX_BD_FLAGS_PACKET_END);
456 netdev_tx_sent_queue(txq, skb->len);
458 /* Sync BD data before updating doorbell */
461 prod = NEXT_TX(prod);
464 writel(DB_KEY_TX | prod, txr->tx_doorbell);
465 writel(DB_KEY_TX | prod, txr->tx_doorbell);
471 if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) {
472 netif_tx_stop_queue(txq);
474 /* netif_tx_stop_queue() must be done before checking
475 * tx index in bnxt_tx_avail() below, because in
476 * bnxt_tx_int(), we update tx index before checking for
477 * netif_tx_queue_stopped().
480 if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)
481 netif_tx_wake_queue(txq);
488 /* start back at beginning and unmap skb */
490 tx_buf = &txr->tx_buf_ring[prod];
492 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
493 skb_headlen(skb), PCI_DMA_TODEVICE);
494 prod = NEXT_TX(prod);
496 /* unmap remaining mapped pages */
497 for (i = 0; i < last_frag; i++) {
498 prod = NEXT_TX(prod);
499 tx_buf = &txr->tx_buf_ring[prod];
500 dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
501 skb_frag_size(&skb_shinfo(skb)->frags[i]),
505 dev_kfree_skb_any(skb);
509 static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts)
511 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
512 struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index);
513 u16 cons = txr->tx_cons;
514 struct pci_dev *pdev = bp->pdev;
516 unsigned int tx_bytes = 0;
518 for (i = 0; i < nr_pkts; i++) {
519 struct bnxt_sw_tx_bd *tx_buf;
523 tx_buf = &txr->tx_buf_ring[cons];
524 cons = NEXT_TX(cons);
528 if (tx_buf->is_push) {
533 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
534 skb_headlen(skb), PCI_DMA_TODEVICE);
535 last = tx_buf->nr_frags;
537 for (j = 0; j < last; j++) {
538 cons = NEXT_TX(cons);
539 tx_buf = &txr->tx_buf_ring[cons];
542 dma_unmap_addr(tx_buf, mapping),
543 skb_frag_size(&skb_shinfo(skb)->frags[j]),
548 cons = NEXT_TX(cons);
550 tx_bytes += skb->len;
551 dev_kfree_skb_any(skb);
554 netdev_tx_completed_queue(txq, nr_pkts, tx_bytes);
557 /* Need to make the tx_cons update visible to bnxt_start_xmit()
558 * before checking for netif_tx_queue_stopped(). Without the
559 * memory barrier, there is a small possibility that bnxt_start_xmit()
560 * will miss it and cause the queue to be stopped forever.
564 if (unlikely(netif_tx_queue_stopped(txq)) &&
565 (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
566 __netif_tx_lock(txq, smp_processor_id());
567 if (netif_tx_queue_stopped(txq) &&
568 bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
569 txr->dev_state != BNXT_DEV_STATE_CLOSING)
570 netif_tx_wake_queue(txq);
571 __netif_tx_unlock(txq);
575 static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping,
578 struct device *dev = &bp->pdev->dev;
581 page = alloc_page(gfp);
585 *mapping = dma_map_page(dev, page, 0, PAGE_SIZE, bp->rx_dir);
586 if (dma_mapping_error(dev, *mapping)) {
590 *mapping += bp->rx_dma_offset;
594 static inline u8 *__bnxt_alloc_rx_data(struct bnxt *bp, dma_addr_t *mapping,
598 struct pci_dev *pdev = bp->pdev;
600 data = kmalloc(bp->rx_buf_size, gfp);
604 *mapping = dma_map_single(&pdev->dev, data + bp->rx_dma_offset,
605 bp->rx_buf_use_size, bp->rx_dir);
607 if (dma_mapping_error(&pdev->dev, *mapping)) {
614 int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
617 struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
618 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod];
621 if (BNXT_RX_PAGE_MODE(bp)) {
622 struct page *page = __bnxt_alloc_rx_page(bp, &mapping, gfp);
628 rx_buf->data_ptr = page_address(page) + bp->rx_offset;
630 u8 *data = __bnxt_alloc_rx_data(bp, &mapping, gfp);
636 rx_buf->data_ptr = data + bp->rx_offset;
638 rx_buf->mapping = mapping;
640 rxbd->rx_bd_haddr = cpu_to_le64(mapping);
644 void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data)
646 u16 prod = rxr->rx_prod;
647 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
648 struct rx_bd *cons_bd, *prod_bd;
650 prod_rx_buf = &rxr->rx_buf_ring[prod];
651 cons_rx_buf = &rxr->rx_buf_ring[cons];
653 prod_rx_buf->data = data;
654 prod_rx_buf->data_ptr = cons_rx_buf->data_ptr;
656 prod_rx_buf->mapping = cons_rx_buf->mapping;
658 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
659 cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)];
661 prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr;
664 static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
666 u16 next, max = rxr->rx_agg_bmap_size;
668 next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx);
670 next = find_first_zero_bit(rxr->rx_agg_bmap, max);
674 static inline int bnxt_alloc_rx_page(struct bnxt *bp,
675 struct bnxt_rx_ring_info *rxr,
679 &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
680 struct bnxt_sw_rx_agg_bd *rx_agg_buf;
681 struct pci_dev *pdev = bp->pdev;
684 u16 sw_prod = rxr->rx_sw_agg_prod;
685 unsigned int offset = 0;
687 if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) {
690 page = alloc_page(gfp);
694 rxr->rx_page_offset = 0;
696 offset = rxr->rx_page_offset;
697 rxr->rx_page_offset += BNXT_RX_PAGE_SIZE;
698 if (rxr->rx_page_offset == PAGE_SIZE)
703 page = alloc_page(gfp);
708 mapping = dma_map_page(&pdev->dev, page, offset, BNXT_RX_PAGE_SIZE,
710 if (dma_mapping_error(&pdev->dev, mapping)) {
715 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
716 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
718 __set_bit(sw_prod, rxr->rx_agg_bmap);
719 rx_agg_buf = &rxr->rx_agg_ring[sw_prod];
720 rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod);
722 rx_agg_buf->page = page;
723 rx_agg_buf->offset = offset;
724 rx_agg_buf->mapping = mapping;
725 rxbd->rx_bd_haddr = cpu_to_le64(mapping);
726 rxbd->rx_bd_opaque = sw_prod;
730 static void bnxt_reuse_rx_agg_bufs(struct bnxt_napi *bnapi, u16 cp_cons,
733 struct bnxt *bp = bnapi->bp;
734 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
735 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
736 u16 prod = rxr->rx_agg_prod;
737 u16 sw_prod = rxr->rx_sw_agg_prod;
740 for (i = 0; i < agg_bufs; i++) {
742 struct rx_agg_cmp *agg;
743 struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf;
744 struct rx_bd *prod_bd;
747 agg = (struct rx_agg_cmp *)
748 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
749 cons = agg->rx_agg_cmp_opaque;
750 __clear_bit(cons, rxr->rx_agg_bmap);
752 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
753 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);
755 __set_bit(sw_prod, rxr->rx_agg_bmap);
756 prod_rx_buf = &rxr->rx_agg_ring[sw_prod];
757 cons_rx_buf = &rxr->rx_agg_ring[cons];
759 /* It is possible for sw_prod to be equal to cons, so
760 * set cons_rx_buf->page to NULL first.
762 page = cons_rx_buf->page;
763 cons_rx_buf->page = NULL;
764 prod_rx_buf->page = page;
765 prod_rx_buf->offset = cons_rx_buf->offset;
767 prod_rx_buf->mapping = cons_rx_buf->mapping;
769 prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
771 prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping);
772 prod_bd->rx_bd_opaque = sw_prod;
774 prod = NEXT_RX_AGG(prod);
775 sw_prod = NEXT_RX_AGG(sw_prod);
776 cp_cons = NEXT_CMP(cp_cons);
778 rxr->rx_agg_prod = prod;
779 rxr->rx_sw_agg_prod = sw_prod;
782 static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp,
783 struct bnxt_rx_ring_info *rxr,
784 u16 cons, void *data, u8 *data_ptr,
786 unsigned int offset_and_len)
788 unsigned int payload = offset_and_len >> 16;
789 unsigned int len = offset_and_len & 0xffff;
790 struct skb_frag_struct *frag;
791 struct page *page = data;
792 u16 prod = rxr->rx_prod;
796 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
798 bnxt_reuse_rx_data(rxr, cons, data);
801 dma_addr -= bp->rx_dma_offset;
802 dma_unmap_page(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir);
804 if (unlikely(!payload))
805 payload = eth_get_headlen(data_ptr, len);
807 skb = napi_alloc_skb(&rxr->bnapi->napi, payload);
813 off = (void *)data_ptr - page_address(page);
814 skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE);
815 memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN,
816 payload + NET_IP_ALIGN);
818 frag = &skb_shinfo(skb)->frags[0];
819 skb_frag_size_sub(frag, payload);
820 frag->page_offset += payload;
821 skb->data_len -= payload;
822 skb->tail += payload;
827 static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
828 struct bnxt_rx_ring_info *rxr, u16 cons,
829 void *data, u8 *data_ptr,
831 unsigned int offset_and_len)
833 u16 prod = rxr->rx_prod;
837 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
839 bnxt_reuse_rx_data(rxr, cons, data);
843 skb = build_skb(data, 0);
844 dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
851 skb_reserve(skb, bp->rx_offset);
852 skb_put(skb, offset_and_len & 0xffff);
856 static struct sk_buff *bnxt_rx_pages(struct bnxt *bp, struct bnxt_napi *bnapi,
857 struct sk_buff *skb, u16 cp_cons,
860 struct pci_dev *pdev = bp->pdev;
861 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
862 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
863 u16 prod = rxr->rx_agg_prod;
866 for (i = 0; i < agg_bufs; i++) {
868 struct rx_agg_cmp *agg;
869 struct bnxt_sw_rx_agg_bd *cons_rx_buf;
873 agg = (struct rx_agg_cmp *)
874 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
875 cons = agg->rx_agg_cmp_opaque;
876 frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
877 RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;
879 cons_rx_buf = &rxr->rx_agg_ring[cons];
880 skb_fill_page_desc(skb, i, cons_rx_buf->page,
881 cons_rx_buf->offset, frag_len);
882 __clear_bit(cons, rxr->rx_agg_bmap);
884 /* It is possible for bnxt_alloc_rx_page() to allocate
885 * a sw_prod index that equals the cons index, so we
886 * need to clear the cons entry now.
888 mapping = cons_rx_buf->mapping;
889 page = cons_rx_buf->page;
890 cons_rx_buf->page = NULL;
892 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) {
893 struct skb_shared_info *shinfo;
894 unsigned int nr_frags;
896 shinfo = skb_shinfo(skb);
897 nr_frags = --shinfo->nr_frags;
898 __skb_frag_set_page(&shinfo->frags[nr_frags], NULL);
902 cons_rx_buf->page = page;
904 /* Update prod since possibly some pages have been
907 rxr->rx_agg_prod = prod;
908 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs - i);
912 dma_unmap_page(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE,
915 skb->data_len += frag_len;
916 skb->len += frag_len;
917 skb->truesize += PAGE_SIZE;
919 prod = NEXT_RX_AGG(prod);
920 cp_cons = NEXT_CMP(cp_cons);
922 rxr->rx_agg_prod = prod;
926 static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
927 u8 agg_bufs, u32 *raw_cons)
930 struct rx_agg_cmp *agg;
932 *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs);
933 last = RING_CMP(*raw_cons);
934 agg = (struct rx_agg_cmp *)
935 &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)];
936 return RX_AGG_CMP_VALID(agg, *raw_cons);
939 static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data,
943 struct bnxt *bp = bnapi->bp;
944 struct pci_dev *pdev = bp->pdev;
947 skb = napi_alloc_skb(&bnapi->napi, len);
951 dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh,
954 memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN,
957 dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh,
964 static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_napi *bnapi,
965 u32 *raw_cons, void *cmp)
967 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
968 struct rx_cmp *rxcmp = cmp;
969 u32 tmp_raw_cons = *raw_cons;
970 u8 cmp_type, agg_bufs = 0;
972 cmp_type = RX_CMP_TYPE(rxcmp);
974 if (cmp_type == CMP_TYPE_RX_L2_CMP) {
975 agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) &
977 RX_CMP_AGG_BUFS_SHIFT;
978 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
979 struct rx_tpa_end_cmp *tpa_end = cmp;
981 agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
982 RX_TPA_END_CMP_AGG_BUFS) >>
983 RX_TPA_END_CMP_AGG_BUFS_SHIFT;
987 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
990 *raw_cons = tmp_raw_cons;
994 static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
996 if (!rxr->bnapi->in_reset) {
997 rxr->bnapi->in_reset = true;
998 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
999 schedule_work(&bp->sp_task);
1001 rxr->rx_next_cons = 0xffff;
1004 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
1005 struct rx_tpa_start_cmp *tpa_start,
1006 struct rx_tpa_start_cmp_ext *tpa_start1)
1008 u8 agg_id = TPA_START_AGG_ID(tpa_start);
1010 struct bnxt_tpa_info *tpa_info;
1011 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
1012 struct rx_bd *prod_bd;
1015 cons = tpa_start->rx_tpa_start_cmp_opaque;
1016 prod = rxr->rx_prod;
1017 cons_rx_buf = &rxr->rx_buf_ring[cons];
1018 prod_rx_buf = &rxr->rx_buf_ring[prod];
1019 tpa_info = &rxr->rx_tpa[agg_id];
1021 if (unlikely(cons != rxr->rx_next_cons)) {
1022 bnxt_sched_reset(bp, rxr);
1026 prod_rx_buf->data = tpa_info->data;
1027 prod_rx_buf->data_ptr = tpa_info->data_ptr;
1029 mapping = tpa_info->mapping;
1030 prod_rx_buf->mapping = mapping;
1032 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
1034 prod_bd->rx_bd_haddr = cpu_to_le64(mapping);
1036 tpa_info->data = cons_rx_buf->data;
1037 tpa_info->data_ptr = cons_rx_buf->data_ptr;
1038 cons_rx_buf->data = NULL;
1039 tpa_info->mapping = cons_rx_buf->mapping;
1042 le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >>
1043 RX_TPA_START_CMP_LEN_SHIFT;
1044 if (likely(TPA_START_HASH_VALID(tpa_start))) {
1045 u32 hash_type = TPA_START_HASH_TYPE(tpa_start);
1047 tpa_info->hash_type = PKT_HASH_TYPE_L4;
1048 tpa_info->gso_type = SKB_GSO_TCPV4;
1049 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
1051 tpa_info->gso_type = SKB_GSO_TCPV6;
1052 tpa_info->rss_hash =
1053 le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash);
1055 tpa_info->hash_type = PKT_HASH_TYPE_NONE;
1056 tpa_info->gso_type = 0;
1057 if (netif_msg_rx_err(bp))
1058 netdev_warn(bp->dev, "TPA packet without valid hash\n");
1060 tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2);
1061 tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata);
1062 tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info);
1064 rxr->rx_prod = NEXT_RX(prod);
1065 cons = NEXT_RX(cons);
1066 rxr->rx_next_cons = NEXT_RX(cons);
1067 cons_rx_buf = &rxr->rx_buf_ring[cons];
1069 bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data);
1070 rxr->rx_prod = NEXT_RX(rxr->rx_prod);
1071 cons_rx_buf->data = NULL;
1074 static void bnxt_abort_tpa(struct bnxt *bp, struct bnxt_napi *bnapi,
1075 u16 cp_cons, u32 agg_bufs)
1078 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
1081 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
1082 int payload_off, int tcp_ts,
1083 struct sk_buff *skb)
1088 u16 outer_ip_off, inner_ip_off, inner_mac_off;
1089 u32 hdr_info = tpa_info->hdr_info;
1090 bool loopback = false;
1092 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
1093 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
1094 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);
1096 /* If the packet is an internal loopback packet, the offsets will
1097 * have an extra 4 bytes.
1099 if (inner_mac_off == 4) {
1101 } else if (inner_mac_off > 4) {
1102 __be16 proto = *((__be16 *)(skb->data + inner_ip_off -
1105 /* We only support inner iPv4/ipv6. If we don't see the
1106 * correct protocol ID, it must be a loopback packet where
1107 * the offsets are off by 4.
1109 if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6))
1113 /* internal loopback packet, subtract all offsets by 4 */
1119 nw_off = inner_ip_off - ETH_HLEN;
1120 skb_set_network_header(skb, nw_off);
1121 if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) {
1122 struct ipv6hdr *iph = ipv6_hdr(skb);
1124 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
1125 len = skb->len - skb_transport_offset(skb);
1127 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
1129 struct iphdr *iph = ip_hdr(skb);
1131 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
1132 len = skb->len - skb_transport_offset(skb);
1134 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
1137 if (inner_mac_off) { /* tunnel */
1138 struct udphdr *uh = NULL;
1139 __be16 proto = *((__be16 *)(skb->data + outer_ip_off -
1142 if (proto == htons(ETH_P_IP)) {
1143 struct iphdr *iph = (struct iphdr *)skb->data;
1145 if (iph->protocol == IPPROTO_UDP)
1146 uh = (struct udphdr *)(iph + 1);
1148 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
1150 if (iph->nexthdr == IPPROTO_UDP)
1151 uh = (struct udphdr *)(iph + 1);
1155 skb_shinfo(skb)->gso_type |=
1156 SKB_GSO_UDP_TUNNEL_CSUM;
1158 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
1165 #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr))
1166 #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
1168 static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info,
1169 int payload_off, int tcp_ts,
1170 struct sk_buff *skb)
1174 int len, nw_off, tcp_opt_len = 0;
1179 if (tpa_info->gso_type == SKB_GSO_TCPV4) {
1182 nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len -
1184 skb_set_network_header(skb, nw_off);
1186 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
1187 len = skb->len - skb_transport_offset(skb);
1189 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
1190 } else if (tpa_info->gso_type == SKB_GSO_TCPV6) {
1191 struct ipv6hdr *iph;
1193 nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len -
1195 skb_set_network_header(skb, nw_off);
1196 iph = ipv6_hdr(skb);
1197 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
1198 len = skb->len - skb_transport_offset(skb);
1200 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
1202 dev_kfree_skb_any(skb);
1206 if (nw_off) { /* tunnel */
1207 struct udphdr *uh = NULL;
1209 if (skb->protocol == htons(ETH_P_IP)) {
1210 struct iphdr *iph = (struct iphdr *)skb->data;
1212 if (iph->protocol == IPPROTO_UDP)
1213 uh = (struct udphdr *)(iph + 1);
1215 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
1217 if (iph->nexthdr == IPPROTO_UDP)
1218 uh = (struct udphdr *)(iph + 1);
1222 skb_shinfo(skb)->gso_type |=
1223 SKB_GSO_UDP_TUNNEL_CSUM;
1225 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
1232 static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp,
1233 struct bnxt_tpa_info *tpa_info,
1234 struct rx_tpa_end_cmp *tpa_end,
1235 struct rx_tpa_end_cmp_ext *tpa_end1,
1236 struct sk_buff *skb)
1242 segs = TPA_END_TPA_SEGS(tpa_end);
1246 NAPI_GRO_CB(skb)->count = segs;
1247 skb_shinfo(skb)->gso_size =
1248 le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
1249 skb_shinfo(skb)->gso_type = tpa_info->gso_type;
1250 payload_off = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
1251 RX_TPA_END_CMP_PAYLOAD_OFFSET) >>
1252 RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT;
1253 skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb);
1255 tcp_gro_complete(skb);
1260 static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
1261 struct bnxt_napi *bnapi,
1263 struct rx_tpa_end_cmp *tpa_end,
1264 struct rx_tpa_end_cmp_ext *tpa_end1,
1267 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1268 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1269 u8 agg_id = TPA_END_AGG_ID(tpa_end);
1270 u8 *data_ptr, agg_bufs;
1271 u16 cp_cons = RING_CMP(*raw_cons);
1273 struct bnxt_tpa_info *tpa_info;
1275 struct sk_buff *skb;
1278 if (unlikely(bnapi->in_reset)) {
1279 int rc = bnxt_discard_rx(bp, bnapi, raw_cons, tpa_end);
1282 return ERR_PTR(-EBUSY);
1286 tpa_info = &rxr->rx_tpa[agg_id];
1287 data = tpa_info->data;
1288 data_ptr = tpa_info->data_ptr;
1290 len = tpa_info->len;
1291 mapping = tpa_info->mapping;
1293 agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) &
1294 RX_TPA_END_CMP_AGG_BUFS) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT;
1297 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
1298 return ERR_PTR(-EBUSY);
1300 *event |= BNXT_AGG_EVENT;
1301 cp_cons = NEXT_CMP(cp_cons);
1304 if (unlikely(agg_bufs > MAX_SKB_FRAGS)) {
1305 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
1306 netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
1307 agg_bufs, (int)MAX_SKB_FRAGS);
1311 if (len <= bp->rx_copy_thresh) {
1312 skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
1314 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
1319 dma_addr_t new_mapping;
1321 new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
1323 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
1327 tpa_info->data = new_data;
1328 tpa_info->data_ptr = new_data + bp->rx_offset;
1329 tpa_info->mapping = new_mapping;
1331 skb = build_skb(data, 0);
1332 dma_unmap_single(&bp->pdev->dev, mapping, bp->rx_buf_use_size,
1337 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs);
1340 skb_reserve(skb, bp->rx_offset);
1345 skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
1347 /* Page reuse already handled by bnxt_rx_pages(). */
1351 skb->protocol = eth_type_trans(skb, bp->dev);
1353 if (tpa_info->hash_type != PKT_HASH_TYPE_NONE)
1354 skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type);
1356 if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) &&
1357 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
1358 u16 vlan_proto = tpa_info->metadata >>
1359 RX_CMP_FLAGS2_METADATA_TPID_SFT;
1360 u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_VID_MASK;
1362 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
1365 skb_checksum_none_assert(skb);
1366 if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) {
1367 skb->ip_summed = CHECKSUM_UNNECESSARY;
1369 (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3;
1372 if (TPA_END_GRO(tpa_end))
1373 skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb);
1378 /* returns the following:
1379 * 1 - 1 packet successfully received
1380 * 0 - successful TPA_START, packet not completed yet
1381 * -EBUSY - completion ring does not have all the agg buffers yet
1382 * -ENOMEM - packet aborted due to out of memory
1383 * -EIO - packet aborted due to hw error indicated in BD
1385 static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
1388 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1389 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1390 struct net_device *dev = bp->dev;
1391 struct rx_cmp *rxcmp;
1392 struct rx_cmp_ext *rxcmp1;
1393 u32 tmp_raw_cons = *raw_cons;
1394 u16 cons, prod, cp_cons = RING_CMP(tmp_raw_cons);
1395 struct bnxt_sw_rx_bd *rx_buf;
1397 u8 *data_ptr, agg_bufs, cmp_type;
1398 dma_addr_t dma_addr;
1399 struct sk_buff *skb;
1404 rxcmp = (struct rx_cmp *)
1405 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1407 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
1408 cp_cons = RING_CMP(tmp_raw_cons);
1409 rxcmp1 = (struct rx_cmp_ext *)
1410 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1412 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
1415 cmp_type = RX_CMP_TYPE(rxcmp);
1417 prod = rxr->rx_prod;
1419 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) {
1420 bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp,
1421 (struct rx_tpa_start_cmp_ext *)rxcmp1);
1423 *event |= BNXT_RX_EVENT;
1424 goto next_rx_no_prod;
1426 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
1427 skb = bnxt_tpa_end(bp, bnapi, &tmp_raw_cons,
1428 (struct rx_tpa_end_cmp *)rxcmp,
1429 (struct rx_tpa_end_cmp_ext *)rxcmp1, event);
1431 if (unlikely(IS_ERR(skb)))
1436 skb_record_rx_queue(skb, bnapi->index);
1437 napi_gro_receive(&bnapi->napi, skb);
1440 *event |= BNXT_RX_EVENT;
1441 goto next_rx_no_prod;
1444 cons = rxcmp->rx_cmp_opaque;
1445 rx_buf = &rxr->rx_buf_ring[cons];
1446 data = rx_buf->data;
1447 data_ptr = rx_buf->data_ptr;
1448 if (unlikely(cons != rxr->rx_next_cons)) {
1449 int rc1 = bnxt_discard_rx(bp, bnapi, raw_cons, rxcmp);
1451 bnxt_sched_reset(bp, rxr);
1456 misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1);
1457 agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT;
1460 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
1463 cp_cons = NEXT_CMP(cp_cons);
1464 *event |= BNXT_AGG_EVENT;
1466 *event |= BNXT_RX_EVENT;
1468 rx_buf->data = NULL;
1469 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
1470 bnxt_reuse_rx_data(rxr, cons, data);
1472 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
1478 len = le32_to_cpu(rxcmp->rx_cmp_len_flags_type) >> RX_CMP_LEN_SHIFT;
1479 dma_addr = rx_buf->mapping;
1481 if (bnxt_rx_xdp(bp, rxr, cons, data, &data_ptr, &len, event)) {
1486 if (len <= bp->rx_copy_thresh) {
1487 skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr);
1488 bnxt_reuse_rx_data(rxr, cons, data);
1496 if (rx_buf->data_ptr == data_ptr)
1497 payload = misc & RX_CMP_PAYLOAD_OFFSET;
1500 skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr,
1509 skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs);
1516 if (RX_CMP_HASH_VALID(rxcmp)) {
1517 u32 hash_type = RX_CMP_HASH_TYPE(rxcmp);
1518 enum pkt_hash_types type = PKT_HASH_TYPE_L4;
1520 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
1521 if (hash_type != 1 && hash_type != 3)
1522 type = PKT_HASH_TYPE_L3;
1523 skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type);
1526 skb->protocol = eth_type_trans(skb, dev);
1528 if ((rxcmp1->rx_cmp_flags2 &
1529 cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) &&
1530 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
1531 u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data);
1532 u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_VID_MASK;
1533 u16 vlan_proto = meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT;
1535 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
1538 skb_checksum_none_assert(skb);
1539 if (RX_CMP_L4_CS_OK(rxcmp1)) {
1540 if (dev->features & NETIF_F_RXCSUM) {
1541 skb->ip_summed = CHECKSUM_UNNECESSARY;
1542 skb->csum_level = RX_CMP_ENCAP(rxcmp1);
1545 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) {
1546 if (dev->features & NETIF_F_RXCSUM)
1547 cpr->rx_l4_csum_errors++;
1551 skb_record_rx_queue(skb, bnapi->index);
1552 napi_gro_receive(&bnapi->napi, skb);
1556 rxr->rx_prod = NEXT_RX(prod);
1557 rxr->rx_next_cons = NEXT_RX(cons);
1560 *raw_cons = tmp_raw_cons;
1565 #define BNXT_GET_EVENT_PORT(data) \
1567 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK)
1569 static int bnxt_async_event_process(struct bnxt *bp,
1570 struct hwrm_async_event_cmpl *cmpl)
1572 u16 event_id = le16_to_cpu(cmpl->event_id);
1574 /* TODO CHIMP_FW: Define event id's for link change, error etc */
1576 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: {
1577 u32 data1 = le32_to_cpu(cmpl->event_data1);
1578 struct bnxt_link_info *link_info = &bp->link_info;
1581 goto async_event_process_exit;
1582 if (data1 & 0x20000) {
1583 u16 fw_speed = link_info->force_link_speed;
1584 u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);
1586 netdev_warn(bp->dev, "Link speed %d no longer supported\n",
1589 set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event);
1592 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
1593 set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);
1595 case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
1596 set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event);
1598 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: {
1599 u32 data1 = le32_to_cpu(cmpl->event_data1);
1600 u16 port_id = BNXT_GET_EVENT_PORT(data1);
1605 if (bp->pf.port_id != port_id)
1608 set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event);
1611 case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
1613 goto async_event_process_exit;
1614 set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event);
1617 goto async_event_process_exit;
1619 schedule_work(&bp->sp_task);
1620 async_event_process_exit:
1621 bnxt_ulp_async_events(bp, cmpl);
1625 static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp)
1627 u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id;
1628 struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp;
1629 struct hwrm_fwd_req_cmpl *fwd_req_cmpl =
1630 (struct hwrm_fwd_req_cmpl *)txcmp;
1632 switch (cmpl_type) {
1633 case CMPL_BASE_TYPE_HWRM_DONE:
1634 seq_id = le16_to_cpu(h_cmpl->sequence_id);
1635 if (seq_id == bp->hwrm_intr_seq_id)
1636 bp->hwrm_intr_seq_id = HWRM_SEQ_ID_INVALID;
1638 netdev_err(bp->dev, "Invalid hwrm seq id %d\n", seq_id);
1641 case CMPL_BASE_TYPE_HWRM_FWD_REQ:
1642 vf_id = le16_to_cpu(fwd_req_cmpl->source_id);
1644 if ((vf_id < bp->pf.first_vf_id) ||
1645 (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) {
1646 netdev_err(bp->dev, "Msg contains invalid VF id %x\n",
1651 set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap);
1652 set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event);
1653 schedule_work(&bp->sp_task);
1656 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
1657 bnxt_async_event_process(bp,
1658 (struct hwrm_async_event_cmpl *)txcmp);
1667 static irqreturn_t bnxt_msix(int irq, void *dev_instance)
1669 struct bnxt_napi *bnapi = dev_instance;
1670 struct bnxt *bp = bnapi->bp;
1671 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1672 u32 cons = RING_CMP(cpr->cp_raw_cons);
1674 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
1675 napi_schedule(&bnapi->napi);
1679 static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
1681 u32 raw_cons = cpr->cp_raw_cons;
1682 u16 cons = RING_CMP(raw_cons);
1683 struct tx_cmp *txcmp;
1685 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
1687 return TX_CMP_VALID(txcmp, raw_cons);
1690 static irqreturn_t bnxt_inta(int irq, void *dev_instance)
1692 struct bnxt_napi *bnapi = dev_instance;
1693 struct bnxt *bp = bnapi->bp;
1694 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1695 u32 cons = RING_CMP(cpr->cp_raw_cons);
1698 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
1700 if (!bnxt_has_work(bp, cpr)) {
1701 int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS);
1702 /* return if erroneous interrupt */
1703 if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id)))
1707 /* disable ring IRQ */
1708 BNXT_CP_DB_IRQ_DIS(cpr->cp_doorbell);
1710 /* Return here if interrupt is shared and is disabled. */
1711 if (unlikely(atomic_read(&bp->intr_sem) != 0))
1714 napi_schedule(&bnapi->napi);
1718 static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
1720 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1721 u32 raw_cons = cpr->cp_raw_cons;
1726 struct tx_cmp *txcmp;
1731 cons = RING_CMP(raw_cons);
1732 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];
1734 if (!TX_CMP_VALID(txcmp, raw_cons))
1737 /* The valid test of the entry must be done first before
1738 * reading any further.
1741 if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
1743 /* return full budget so NAPI will complete. */
1744 if (unlikely(tx_pkts > bp->tx_wake_thresh))
1746 } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
1747 rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event);
1748 if (likely(rc >= 0))
1750 else if (rc == -EBUSY) /* partial completion */
1752 } else if (unlikely((TX_CMP_TYPE(txcmp) ==
1753 CMPL_BASE_TYPE_HWRM_DONE) ||
1754 (TX_CMP_TYPE(txcmp) ==
1755 CMPL_BASE_TYPE_HWRM_FWD_REQ) ||
1756 (TX_CMP_TYPE(txcmp) ==
1757 CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) {
1758 bnxt_hwrm_handler(bp, txcmp);
1760 raw_cons = NEXT_RAW_CMP(raw_cons);
1762 if (rx_pkts == budget)
1766 if (event & BNXT_TX_EVENT) {
1767 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
1768 void __iomem *db = txr->tx_doorbell;
1769 u16 prod = txr->tx_prod;
1771 /* Sync BD data before updating doorbell */
1774 writel(DB_KEY_TX | prod, db);
1775 writel(DB_KEY_TX | prod, db);
1778 cpr->cp_raw_cons = raw_cons;
1779 /* ACK completion ring before freeing tx ring and producing new
1780 * buffers in rx/agg rings to prevent overflowing the completion
1783 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
1786 bnapi->tx_int(bp, bnapi, tx_pkts);
1788 if (event & BNXT_RX_EVENT) {
1789 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1791 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
1792 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
1793 if (event & BNXT_AGG_EVENT) {
1794 writel(DB_KEY_RX | rxr->rx_agg_prod,
1795 rxr->rx_agg_doorbell);
1796 writel(DB_KEY_RX | rxr->rx_agg_prod,
1797 rxr->rx_agg_doorbell);
1803 static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget)
1805 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
1806 struct bnxt *bp = bnapi->bp;
1807 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1808 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
1809 struct tx_cmp *txcmp;
1810 struct rx_cmp_ext *rxcmp1;
1811 u32 cp_cons, tmp_raw_cons;
1812 u32 raw_cons = cpr->cp_raw_cons;
1819 cp_cons = RING_CMP(raw_cons);
1820 txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1822 if (!TX_CMP_VALID(txcmp, raw_cons))
1825 if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
1826 tmp_raw_cons = NEXT_RAW_CMP(raw_cons);
1827 cp_cons = RING_CMP(tmp_raw_cons);
1828 rxcmp1 = (struct rx_cmp_ext *)
1829 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
1831 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
1834 /* force an error to recycle the buffer */
1835 rxcmp1->rx_cmp_cfa_code_errors_v2 |=
1836 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);
1838 rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event);
1839 if (likely(rc == -EIO))
1841 else if (rc == -EBUSY) /* partial completion */
1843 } else if (unlikely(TX_CMP_TYPE(txcmp) ==
1844 CMPL_BASE_TYPE_HWRM_DONE)) {
1845 bnxt_hwrm_handler(bp, txcmp);
1848 "Invalid completion received on special ring\n");
1850 raw_cons = NEXT_RAW_CMP(raw_cons);
1852 if (rx_pkts == budget)
1856 cpr->cp_raw_cons = raw_cons;
1857 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
1858 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
1859 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
1861 if (event & BNXT_AGG_EVENT) {
1862 writel(DB_KEY_RX | rxr->rx_agg_prod, rxr->rx_agg_doorbell);
1863 writel(DB_KEY_RX | rxr->rx_agg_prod, rxr->rx_agg_doorbell);
1866 if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) {
1867 napi_complete_done(napi, rx_pkts);
1868 BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons);
1873 static int bnxt_poll(struct napi_struct *napi, int budget)
1875 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
1876 struct bnxt *bp = bnapi->bp;
1877 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
1881 work_done += bnxt_poll_work(bp, bnapi, budget - work_done);
1883 if (work_done >= budget)
1886 if (!bnxt_has_work(bp, cpr)) {
1887 if (napi_complete_done(napi, work_done))
1888 BNXT_CP_DB_REARM(cpr->cp_doorbell,
1897 static void bnxt_free_tx_skbs(struct bnxt *bp)
1900 struct pci_dev *pdev = bp->pdev;
1905 max_idx = bp->tx_nr_pages * TX_DESC_CNT;
1906 for (i = 0; i < bp->tx_nr_rings; i++) {
1907 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
1910 for (j = 0; j < max_idx;) {
1911 struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
1912 struct sk_buff *skb = tx_buf->skb;
1922 if (tx_buf->is_push) {
1928 dma_unmap_single(&pdev->dev,
1929 dma_unmap_addr(tx_buf, mapping),
1933 last = tx_buf->nr_frags;
1935 for (k = 0; k < last; k++, j++) {
1936 int ring_idx = j & bp->tx_ring_mask;
1937 skb_frag_t *frag = &skb_shinfo(skb)->frags[k];
1939 tx_buf = &txr->tx_buf_ring[ring_idx];
1942 dma_unmap_addr(tx_buf, mapping),
1943 skb_frag_size(frag), PCI_DMA_TODEVICE);
1947 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
1951 static void bnxt_free_rx_skbs(struct bnxt *bp)
1953 int i, max_idx, max_agg_idx;
1954 struct pci_dev *pdev = bp->pdev;
1959 max_idx = bp->rx_nr_pages * RX_DESC_CNT;
1960 max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT;
1961 for (i = 0; i < bp->rx_nr_rings; i++) {
1962 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
1966 for (j = 0; j < MAX_TPA; j++) {
1967 struct bnxt_tpa_info *tpa_info =
1969 u8 *data = tpa_info->data;
1974 dma_unmap_single(&pdev->dev, tpa_info->mapping,
1975 bp->rx_buf_use_size,
1978 tpa_info->data = NULL;
1984 for (j = 0; j < max_idx; j++) {
1985 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j];
1986 void *data = rx_buf->data;
1991 dma_unmap_single(&pdev->dev, rx_buf->mapping,
1992 bp->rx_buf_use_size, bp->rx_dir);
1994 rx_buf->data = NULL;
1996 if (BNXT_RX_PAGE_MODE(bp))
2002 for (j = 0; j < max_agg_idx; j++) {
2003 struct bnxt_sw_rx_agg_bd *rx_agg_buf =
2004 &rxr->rx_agg_ring[j];
2005 struct page *page = rx_agg_buf->page;
2010 dma_unmap_page(&pdev->dev, rx_agg_buf->mapping,
2011 BNXT_RX_PAGE_SIZE, PCI_DMA_FROMDEVICE);
2013 rx_agg_buf->page = NULL;
2014 __clear_bit(j, rxr->rx_agg_bmap);
2019 __free_page(rxr->rx_page);
2020 rxr->rx_page = NULL;
2025 static void bnxt_free_skbs(struct bnxt *bp)
2027 bnxt_free_tx_skbs(bp);
2028 bnxt_free_rx_skbs(bp);
2031 static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_struct *ring)
2033 struct pci_dev *pdev = bp->pdev;
2036 for (i = 0; i < ring->nr_pages; i++) {
2037 if (!ring->pg_arr[i])
2040 dma_free_coherent(&pdev->dev, ring->page_size,
2041 ring->pg_arr[i], ring->dma_arr[i]);
2043 ring->pg_arr[i] = NULL;
2046 dma_free_coherent(&pdev->dev, ring->nr_pages * 8,
2047 ring->pg_tbl, ring->pg_tbl_map);
2048 ring->pg_tbl = NULL;
2050 if (ring->vmem_size && *ring->vmem) {
2056 static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_struct *ring)
2059 struct pci_dev *pdev = bp->pdev;
2061 if (ring->nr_pages > 1) {
2062 ring->pg_tbl = dma_alloc_coherent(&pdev->dev,
2070 for (i = 0; i < ring->nr_pages; i++) {
2071 ring->pg_arr[i] = dma_alloc_coherent(&pdev->dev,
2075 if (!ring->pg_arr[i])
2078 if (ring->nr_pages > 1)
2079 ring->pg_tbl[i] = cpu_to_le64(ring->dma_arr[i]);
2082 if (ring->vmem_size) {
2083 *ring->vmem = vzalloc(ring->vmem_size);
2090 static void bnxt_free_rx_rings(struct bnxt *bp)
2097 for (i = 0; i < bp->rx_nr_rings; i++) {
2098 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2099 struct bnxt_ring_struct *ring;
2102 bpf_prog_put(rxr->xdp_prog);
2107 kfree(rxr->rx_agg_bmap);
2108 rxr->rx_agg_bmap = NULL;
2110 ring = &rxr->rx_ring_struct;
2111 bnxt_free_ring(bp, ring);
2113 ring = &rxr->rx_agg_ring_struct;
2114 bnxt_free_ring(bp, ring);
2118 static int bnxt_alloc_rx_rings(struct bnxt *bp)
2120 int i, rc, agg_rings = 0, tpa_rings = 0;
2125 if (bp->flags & BNXT_FLAG_AGG_RINGS)
2128 if (bp->flags & BNXT_FLAG_TPA)
2131 for (i = 0; i < bp->rx_nr_rings; i++) {
2132 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
2133 struct bnxt_ring_struct *ring;
2135 ring = &rxr->rx_ring_struct;
2137 rc = bnxt_alloc_ring(bp, ring);
2144 ring = &rxr->rx_agg_ring_struct;
2145 rc = bnxt_alloc_ring(bp, ring);
2149 rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1;
2150 mem_size = rxr->rx_agg_bmap_size / 8;
2151 rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL);
2152 if (!rxr->rx_agg_bmap)
2156 rxr->rx_tpa = kcalloc(MAX_TPA,
2157 sizeof(struct bnxt_tpa_info),
2167 static void bnxt_free_tx_rings(struct bnxt *bp)
2170 struct pci_dev *pdev = bp->pdev;
2175 for (i = 0; i < bp->tx_nr_rings; i++) {
2176 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2177 struct bnxt_ring_struct *ring;
2180 dma_free_coherent(&pdev->dev, bp->tx_push_size,
2181 txr->tx_push, txr->tx_push_mapping);
2182 txr->tx_push = NULL;
2185 ring = &txr->tx_ring_struct;
2187 bnxt_free_ring(bp, ring);
2191 static int bnxt_alloc_tx_rings(struct bnxt *bp)
2194 struct pci_dev *pdev = bp->pdev;
2196 bp->tx_push_size = 0;
2197 if (bp->tx_push_thresh) {
2200 push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) +
2201 bp->tx_push_thresh);
2203 if (push_size > 256) {
2205 bp->tx_push_thresh = 0;
2208 bp->tx_push_size = push_size;
2211 for (i = 0, j = 0; i < bp->tx_nr_rings; i++) {
2212 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2213 struct bnxt_ring_struct *ring;
2215 ring = &txr->tx_ring_struct;
2217 rc = bnxt_alloc_ring(bp, ring);
2221 if (bp->tx_push_size) {
2224 /* One pre-allocated DMA buffer to backup
2227 txr->tx_push = dma_alloc_coherent(&pdev->dev,
2229 &txr->tx_push_mapping,
2235 mapping = txr->tx_push_mapping +
2236 sizeof(struct tx_push_bd);
2237 txr->data_mapping = cpu_to_le64(mapping);
2239 memset(txr->tx_push, 0, sizeof(struct tx_push_bd));
2241 ring->queue_id = bp->q_info[j].queue_id;
2242 if (i < bp->tx_nr_rings_xdp)
2244 if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))
2250 static void bnxt_free_cp_rings(struct bnxt *bp)
2257 for (i = 0; i < bp->cp_nr_rings; i++) {
2258 struct bnxt_napi *bnapi = bp->bnapi[i];
2259 struct bnxt_cp_ring_info *cpr;
2260 struct bnxt_ring_struct *ring;
2265 cpr = &bnapi->cp_ring;
2266 ring = &cpr->cp_ring_struct;
2268 bnxt_free_ring(bp, ring);
2272 static int bnxt_alloc_cp_rings(struct bnxt *bp)
2276 for (i = 0; i < bp->cp_nr_rings; i++) {
2277 struct bnxt_napi *bnapi = bp->bnapi[i];
2278 struct bnxt_cp_ring_info *cpr;
2279 struct bnxt_ring_struct *ring;
2284 cpr = &bnapi->cp_ring;
2285 ring = &cpr->cp_ring_struct;
2287 rc = bnxt_alloc_ring(bp, ring);
2294 static void bnxt_init_ring_struct(struct bnxt *bp)
2298 for (i = 0; i < bp->cp_nr_rings; i++) {
2299 struct bnxt_napi *bnapi = bp->bnapi[i];
2300 struct bnxt_cp_ring_info *cpr;
2301 struct bnxt_rx_ring_info *rxr;
2302 struct bnxt_tx_ring_info *txr;
2303 struct bnxt_ring_struct *ring;
2308 cpr = &bnapi->cp_ring;
2309 ring = &cpr->cp_ring_struct;
2310 ring->nr_pages = bp->cp_nr_pages;
2311 ring->page_size = HW_CMPD_RING_SIZE;
2312 ring->pg_arr = (void **)cpr->cp_desc_ring;
2313 ring->dma_arr = cpr->cp_desc_mapping;
2314 ring->vmem_size = 0;
2316 rxr = bnapi->rx_ring;
2320 ring = &rxr->rx_ring_struct;
2321 ring->nr_pages = bp->rx_nr_pages;
2322 ring->page_size = HW_RXBD_RING_SIZE;
2323 ring->pg_arr = (void **)rxr->rx_desc_ring;
2324 ring->dma_arr = rxr->rx_desc_mapping;
2325 ring->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;
2326 ring->vmem = (void **)&rxr->rx_buf_ring;
2328 ring = &rxr->rx_agg_ring_struct;
2329 ring->nr_pages = bp->rx_agg_nr_pages;
2330 ring->page_size = HW_RXBD_RING_SIZE;
2331 ring->pg_arr = (void **)rxr->rx_agg_desc_ring;
2332 ring->dma_arr = rxr->rx_agg_desc_mapping;
2333 ring->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages;
2334 ring->vmem = (void **)&rxr->rx_agg_ring;
2337 txr = bnapi->tx_ring;
2341 ring = &txr->tx_ring_struct;
2342 ring->nr_pages = bp->tx_nr_pages;
2343 ring->page_size = HW_RXBD_RING_SIZE;
2344 ring->pg_arr = (void **)txr->tx_desc_ring;
2345 ring->dma_arr = txr->tx_desc_mapping;
2346 ring->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages;
2347 ring->vmem = (void **)&txr->tx_buf_ring;
2351 static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type)
2355 struct rx_bd **rx_buf_ring;
2357 rx_buf_ring = (struct rx_bd **)ring->pg_arr;
2358 for (i = 0, prod = 0; i < ring->nr_pages; i++) {
2362 rxbd = rx_buf_ring[i];
2366 for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) {
2367 rxbd->rx_bd_len_flags_type = cpu_to_le32(type);
2368 rxbd->rx_bd_opaque = prod;
2373 static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
2375 struct net_device *dev = bp->dev;
2376 struct bnxt_rx_ring_info *rxr;
2377 struct bnxt_ring_struct *ring;
2381 type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) |
2382 RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP;
2384 if (NET_IP_ALIGN == 2)
2385 type |= RX_BD_FLAGS_SOP;
2387 rxr = &bp->rx_ring[ring_nr];
2388 ring = &rxr->rx_ring_struct;
2389 bnxt_init_rxbd_pages(ring, type);
2391 if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) {
2392 rxr->xdp_prog = bpf_prog_add(bp->xdp_prog, 1);
2393 if (IS_ERR(rxr->xdp_prog)) {
2394 int rc = PTR_ERR(rxr->xdp_prog);
2396 rxr->xdp_prog = NULL;
2400 prod = rxr->rx_prod;
2401 for (i = 0; i < bp->rx_ring_size; i++) {
2402 if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL) != 0) {
2403 netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n",
2404 ring_nr, i, bp->rx_ring_size);
2407 prod = NEXT_RX(prod);
2409 rxr->rx_prod = prod;
2410 ring->fw_ring_id = INVALID_HW_RING_ID;
2412 ring = &rxr->rx_agg_ring_struct;
2413 ring->fw_ring_id = INVALID_HW_RING_ID;
2415 if (!(bp->flags & BNXT_FLAG_AGG_RINGS))
2418 type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) |
2419 RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP;
2421 bnxt_init_rxbd_pages(ring, type);
2423 prod = rxr->rx_agg_prod;
2424 for (i = 0; i < bp->rx_agg_ring_size; i++) {
2425 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL) != 0) {
2426 netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n",
2427 ring_nr, i, bp->rx_ring_size);
2430 prod = NEXT_RX_AGG(prod);
2432 rxr->rx_agg_prod = prod;
2434 if (bp->flags & BNXT_FLAG_TPA) {
2439 for (i = 0; i < MAX_TPA; i++) {
2440 data = __bnxt_alloc_rx_data(bp, &mapping,
2445 rxr->rx_tpa[i].data = data;
2446 rxr->rx_tpa[i].data_ptr = data + bp->rx_offset;
2447 rxr->rx_tpa[i].mapping = mapping;
2450 netdev_err(bp->dev, "No resource allocated for LRO/GRO\n");
2458 static int bnxt_init_rx_rings(struct bnxt *bp)
2462 if (BNXT_RX_PAGE_MODE(bp)) {
2463 bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM;
2464 bp->rx_dma_offset = XDP_PACKET_HEADROOM;
2466 bp->rx_offset = BNXT_RX_OFFSET;
2467 bp->rx_dma_offset = BNXT_RX_DMA_OFFSET;
2470 for (i = 0; i < bp->rx_nr_rings; i++) {
2471 rc = bnxt_init_one_rx_ring(bp, i);
2479 static int bnxt_init_tx_rings(struct bnxt *bp)
2483 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
2486 for (i = 0; i < bp->tx_nr_rings; i++) {
2487 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
2488 struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
2490 ring->fw_ring_id = INVALID_HW_RING_ID;
2496 static void bnxt_free_ring_grps(struct bnxt *bp)
2498 kfree(bp->grp_info);
2499 bp->grp_info = NULL;
2502 static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init)
2507 bp->grp_info = kcalloc(bp->cp_nr_rings,
2508 sizeof(struct bnxt_ring_grp_info),
2513 for (i = 0; i < bp->cp_nr_rings; i++) {
2515 bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID;
2516 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
2517 bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID;
2518 bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID;
2519 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
2524 static void bnxt_free_vnics(struct bnxt *bp)
2526 kfree(bp->vnic_info);
2527 bp->vnic_info = NULL;
2531 static int bnxt_alloc_vnics(struct bnxt *bp)
2535 #ifdef CONFIG_RFS_ACCEL
2536 if (bp->flags & BNXT_FLAG_RFS)
2537 num_vnics += bp->rx_nr_rings;
2540 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
2543 bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info),
2548 bp->nr_vnics = num_vnics;
2552 static void bnxt_init_vnics(struct bnxt *bp)
2556 for (i = 0; i < bp->nr_vnics; i++) {
2557 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
2559 vnic->fw_vnic_id = INVALID_HW_RING_ID;
2560 vnic->fw_rss_cos_lb_ctx[0] = INVALID_HW_RING_ID;
2561 vnic->fw_rss_cos_lb_ctx[1] = INVALID_HW_RING_ID;
2562 vnic->fw_l2_ctx_id = INVALID_HW_RING_ID;
2564 if (bp->vnic_info[i].rss_hash_key) {
2566 prandom_bytes(vnic->rss_hash_key,
2569 memcpy(vnic->rss_hash_key,
2570 bp->vnic_info[0].rss_hash_key,
2576 static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg)
2580 pages = ring_size / desc_per_pg;
2587 while (pages & (pages - 1))
2593 void bnxt_set_tpa_flags(struct bnxt *bp)
2595 bp->flags &= ~BNXT_FLAG_TPA;
2596 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
2598 if (bp->dev->features & NETIF_F_LRO)
2599 bp->flags |= BNXT_FLAG_LRO;
2600 if (bp->dev->features & NETIF_F_GRO)
2601 bp->flags |= BNXT_FLAG_GRO;
2604 /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must
2607 void bnxt_set_ring_params(struct bnxt *bp)
2609 u32 ring_size, rx_size, rx_space;
2610 u32 agg_factor = 0, agg_ring_size = 0;
2612 /* 8 for CRC and VLAN */
2613 rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8);
2615 rx_space = rx_size + NET_SKB_PAD +
2616 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
2618 bp->rx_copy_thresh = BNXT_RX_COPY_THRESH;
2619 ring_size = bp->rx_ring_size;
2620 bp->rx_agg_ring_size = 0;
2621 bp->rx_agg_nr_pages = 0;
2623 if (bp->flags & BNXT_FLAG_TPA)
2624 agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE);
2626 bp->flags &= ~BNXT_FLAG_JUMBO;
2627 if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) {
2630 bp->flags |= BNXT_FLAG_JUMBO;
2631 jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
2632 if (jumbo_factor > agg_factor)
2633 agg_factor = jumbo_factor;
2635 agg_ring_size = ring_size * agg_factor;
2637 if (agg_ring_size) {
2638 bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size,
2640 if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) {
2641 u32 tmp = agg_ring_size;
2643 bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES;
2644 agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1;
2645 netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n",
2646 tmp, agg_ring_size);
2648 bp->rx_agg_ring_size = agg_ring_size;
2649 bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1;
2650 rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN);
2651 rx_space = rx_size + NET_SKB_PAD +
2652 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
2655 bp->rx_buf_use_size = rx_size;
2656 bp->rx_buf_size = rx_space;
2658 bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT);
2659 bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1;
2661 ring_size = bp->tx_ring_size;
2662 bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT);
2663 bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1;
2665 ring_size = bp->rx_ring_size * (2 + agg_factor) + bp->tx_ring_size;
2666 bp->cp_ring_size = ring_size;
2668 bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT);
2669 if (bp->cp_nr_pages > MAX_CP_PAGES) {
2670 bp->cp_nr_pages = MAX_CP_PAGES;
2671 bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1;
2672 netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n",
2673 ring_size, bp->cp_ring_size);
2675 bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT;
2676 bp->cp_ring_mask = bp->cp_bit - 1;
2679 int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
2682 if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU)
2684 bp->dev->max_mtu = BNXT_MAX_PAGE_MODE_MTU;
2685 bp->flags &= ~BNXT_FLAG_AGG_RINGS;
2686 bp->flags |= BNXT_FLAG_NO_AGG_RINGS | BNXT_FLAG_RX_PAGE_MODE;
2687 bp->dev->hw_features &= ~NETIF_F_LRO;
2688 bp->dev->features &= ~NETIF_F_LRO;
2689 bp->rx_dir = DMA_BIDIRECTIONAL;
2690 bp->rx_skb_func = bnxt_rx_page_skb;
2692 bp->dev->max_mtu = BNXT_MAX_MTU;
2693 bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE;
2694 bp->rx_dir = DMA_FROM_DEVICE;
2695 bp->rx_skb_func = bnxt_rx_skb;
2700 static void bnxt_free_vnic_attributes(struct bnxt *bp)
2703 struct bnxt_vnic_info *vnic;
2704 struct pci_dev *pdev = bp->pdev;
2709 for (i = 0; i < bp->nr_vnics; i++) {
2710 vnic = &bp->vnic_info[i];
2712 kfree(vnic->fw_grp_ids);
2713 vnic->fw_grp_ids = NULL;
2715 kfree(vnic->uc_list);
2716 vnic->uc_list = NULL;
2718 if (vnic->mc_list) {
2719 dma_free_coherent(&pdev->dev, vnic->mc_list_size,
2720 vnic->mc_list, vnic->mc_list_mapping);
2721 vnic->mc_list = NULL;
2724 if (vnic->rss_table) {
2725 dma_free_coherent(&pdev->dev, PAGE_SIZE,
2727 vnic->rss_table_dma_addr);
2728 vnic->rss_table = NULL;
2731 vnic->rss_hash_key = NULL;
2736 static int bnxt_alloc_vnic_attributes(struct bnxt *bp)
2738 int i, rc = 0, size;
2739 struct bnxt_vnic_info *vnic;
2740 struct pci_dev *pdev = bp->pdev;
2743 for (i = 0; i < bp->nr_vnics; i++) {
2744 vnic = &bp->vnic_info[i];
2746 if (vnic->flags & BNXT_VNIC_UCAST_FLAG) {
2747 int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN;
2750 vnic->uc_list = kmalloc(mem_size, GFP_KERNEL);
2751 if (!vnic->uc_list) {
2758 if (vnic->flags & BNXT_VNIC_MCAST_FLAG) {
2759 vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN;
2761 dma_alloc_coherent(&pdev->dev,
2763 &vnic->mc_list_mapping,
2765 if (!vnic->mc_list) {
2771 if (vnic->flags & BNXT_VNIC_RSS_FLAG)
2772 max_rings = bp->rx_nr_rings;
2776 vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL);
2777 if (!vnic->fw_grp_ids) {
2782 if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) &&
2783 !(vnic->flags & BNXT_VNIC_RSS_FLAG))
2786 /* Allocate rss table and hash key */
2787 vnic->rss_table = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
2788 &vnic->rss_table_dma_addr,
2790 if (!vnic->rss_table) {
2795 size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16));
2797 vnic->rss_hash_key = ((void *)vnic->rss_table) + size;
2798 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size;
2806 static void bnxt_free_hwrm_resources(struct bnxt *bp)
2808 struct pci_dev *pdev = bp->pdev;
2810 dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr,
2811 bp->hwrm_cmd_resp_dma_addr);
2813 bp->hwrm_cmd_resp_addr = NULL;
2814 if (bp->hwrm_dbg_resp_addr) {
2815 dma_free_coherent(&pdev->dev, HWRM_DBG_REG_BUF_SIZE,
2816 bp->hwrm_dbg_resp_addr,
2817 bp->hwrm_dbg_resp_dma_addr);
2819 bp->hwrm_dbg_resp_addr = NULL;
2823 static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
2825 struct pci_dev *pdev = bp->pdev;
2827 bp->hwrm_cmd_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
2828 &bp->hwrm_cmd_resp_dma_addr,
2830 if (!bp->hwrm_cmd_resp_addr)
2832 bp->hwrm_dbg_resp_addr = dma_alloc_coherent(&pdev->dev,
2833 HWRM_DBG_REG_BUF_SIZE,
2834 &bp->hwrm_dbg_resp_dma_addr,
2836 if (!bp->hwrm_dbg_resp_addr)
2837 netdev_warn(bp->dev, "fail to alloc debug register dma mem\n");
2842 static void bnxt_free_stats(struct bnxt *bp)
2845 struct pci_dev *pdev = bp->pdev;
2847 if (bp->hw_rx_port_stats) {
2848 dma_free_coherent(&pdev->dev, bp->hw_port_stats_size,
2849 bp->hw_rx_port_stats,
2850 bp->hw_rx_port_stats_map);
2851 bp->hw_rx_port_stats = NULL;
2852 bp->flags &= ~BNXT_FLAG_PORT_STATS;
2858 size = sizeof(struct ctx_hw_stats);
2860 for (i = 0; i < bp->cp_nr_rings; i++) {
2861 struct bnxt_napi *bnapi = bp->bnapi[i];
2862 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2864 if (cpr->hw_stats) {
2865 dma_free_coherent(&pdev->dev, size, cpr->hw_stats,
2867 cpr->hw_stats = NULL;
2872 static int bnxt_alloc_stats(struct bnxt *bp)
2875 struct pci_dev *pdev = bp->pdev;
2877 size = sizeof(struct ctx_hw_stats);
2879 for (i = 0; i < bp->cp_nr_rings; i++) {
2880 struct bnxt_napi *bnapi = bp->bnapi[i];
2881 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
2883 cpr->hw_stats = dma_alloc_coherent(&pdev->dev, size,
2889 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
2892 if (BNXT_PF(bp) && bp->chip_num != CHIP_NUM_58700) {
2893 bp->hw_port_stats_size = sizeof(struct rx_port_stats) +
2894 sizeof(struct tx_port_stats) + 1024;
2896 bp->hw_rx_port_stats =
2897 dma_alloc_coherent(&pdev->dev, bp->hw_port_stats_size,
2898 &bp->hw_rx_port_stats_map,
2900 if (!bp->hw_rx_port_stats)
2903 bp->hw_tx_port_stats = (void *)(bp->hw_rx_port_stats + 1) +
2905 bp->hw_tx_port_stats_map = bp->hw_rx_port_stats_map +
2906 sizeof(struct rx_port_stats) + 512;
2907 bp->flags |= BNXT_FLAG_PORT_STATS;
2912 static void bnxt_clear_ring_indices(struct bnxt *bp)
2919 for (i = 0; i < bp->cp_nr_rings; i++) {
2920 struct bnxt_napi *bnapi = bp->bnapi[i];
2921 struct bnxt_cp_ring_info *cpr;
2922 struct bnxt_rx_ring_info *rxr;
2923 struct bnxt_tx_ring_info *txr;
2928 cpr = &bnapi->cp_ring;
2929 cpr->cp_raw_cons = 0;
2931 txr = bnapi->tx_ring;
2937 rxr = bnapi->rx_ring;
2940 rxr->rx_agg_prod = 0;
2941 rxr->rx_sw_agg_prod = 0;
2942 rxr->rx_next_cons = 0;
2947 static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit)
2949 #ifdef CONFIG_RFS_ACCEL
2952 /* Under rtnl_lock and all our NAPIs have been disabled. It's
2953 * safe to delete the hash table.
2955 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
2956 struct hlist_head *head;
2957 struct hlist_node *tmp;
2958 struct bnxt_ntuple_filter *fltr;
2960 head = &bp->ntp_fltr_hash_tbl[i];
2961 hlist_for_each_entry_safe(fltr, tmp, head, hash) {
2962 hlist_del(&fltr->hash);
2967 kfree(bp->ntp_fltr_bmap);
2968 bp->ntp_fltr_bmap = NULL;
2970 bp->ntp_fltr_count = 0;
2974 static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
2976 #ifdef CONFIG_RFS_ACCEL
2979 if (!(bp->flags & BNXT_FLAG_RFS))
2982 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++)
2983 INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
2985 bp->ntp_fltr_count = 0;
2986 bp->ntp_fltr_bmap = kzalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
2989 if (!bp->ntp_fltr_bmap)
2998 static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init)
3000 bnxt_free_vnic_attributes(bp);
3001 bnxt_free_tx_rings(bp);
3002 bnxt_free_rx_rings(bp);
3003 bnxt_free_cp_rings(bp);
3004 bnxt_free_ntp_fltrs(bp, irq_re_init);
3006 bnxt_free_stats(bp);
3007 bnxt_free_ring_grps(bp);
3008 bnxt_free_vnics(bp);
3009 kfree(bp->tx_ring_map);
3010 bp->tx_ring_map = NULL;
3018 bnxt_clear_ring_indices(bp);
3022 static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
3024 int i, j, rc, size, arr_size;
3028 /* Allocate bnapi mem pointer array and mem block for
3031 arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) *
3033 size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi));
3034 bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL);
3040 for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) {
3041 bp->bnapi[i] = bnapi;
3042 bp->bnapi[i]->index = i;
3043 bp->bnapi[i]->bp = bp;
3046 bp->rx_ring = kcalloc(bp->rx_nr_rings,
3047 sizeof(struct bnxt_rx_ring_info),
3052 for (i = 0; i < bp->rx_nr_rings; i++) {
3053 bp->rx_ring[i].bnapi = bp->bnapi[i];
3054 bp->bnapi[i]->rx_ring = &bp->rx_ring[i];
3057 bp->tx_ring = kcalloc(bp->tx_nr_rings,
3058 sizeof(struct bnxt_tx_ring_info),
3063 bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16),
3066 if (!bp->tx_ring_map)
3069 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
3072 j = bp->rx_nr_rings;
3074 for (i = 0; i < bp->tx_nr_rings; i++, j++) {
3075 bp->tx_ring[i].bnapi = bp->bnapi[j];
3076 bp->bnapi[j]->tx_ring = &bp->tx_ring[i];
3077 bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i;
3078 if (i >= bp->tx_nr_rings_xdp) {
3079 bp->tx_ring[i].txq_index = i -
3080 bp->tx_nr_rings_xdp;
3081 bp->bnapi[j]->tx_int = bnxt_tx_int;
3083 bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP;
3084 bp->bnapi[j]->tx_int = bnxt_tx_int_xdp;
3088 rc = bnxt_alloc_stats(bp);
3092 rc = bnxt_alloc_ntp_fltrs(bp);
3096 rc = bnxt_alloc_vnics(bp);
3101 bnxt_init_ring_struct(bp);
3103 rc = bnxt_alloc_rx_rings(bp);
3107 rc = bnxt_alloc_tx_rings(bp);
3111 rc = bnxt_alloc_cp_rings(bp);
3115 bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG |
3116 BNXT_VNIC_UCAST_FLAG;
3117 rc = bnxt_alloc_vnic_attributes(bp);
3123 bnxt_free_mem(bp, true);
3127 static void bnxt_disable_int(struct bnxt *bp)
3134 for (i = 0; i < bp->cp_nr_rings; i++) {
3135 struct bnxt_napi *bnapi = bp->bnapi[i];
3136 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
3137 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
3139 if (ring->fw_ring_id != INVALID_HW_RING_ID)
3140 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
3144 static void bnxt_disable_int_sync(struct bnxt *bp)
3148 atomic_inc(&bp->intr_sem);
3150 bnxt_disable_int(bp);
3151 for (i = 0; i < bp->cp_nr_rings; i++)
3152 synchronize_irq(bp->irq_tbl[i].vector);
3155 static void bnxt_enable_int(struct bnxt *bp)
3159 atomic_set(&bp->intr_sem, 0);
3160 for (i = 0; i < bp->cp_nr_rings; i++) {
3161 struct bnxt_napi *bnapi = bp->bnapi[i];
3162 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
3164 BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons);
3168 void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type,
3169 u16 cmpl_ring, u16 target_id)
3171 struct input *req = request;
3173 req->req_type = cpu_to_le16(req_type);
3174 req->cmpl_ring = cpu_to_le16(cmpl_ring);
3175 req->target_id = cpu_to_le16(target_id);
3176 req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
3179 static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
3180 int timeout, bool silent)
3182 int i, intr_process, rc, tmo_count;
3183 struct input *req = msg;
3185 __le32 *resp_len, *valid;
3186 u16 cp_ring_id, len = 0;
3187 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr;
3189 req->seq_id = cpu_to_le16(bp->hwrm_cmd_seq++);
3190 memset(resp, 0, PAGE_SIZE);
3191 cp_ring_id = le16_to_cpu(req->cmpl_ring);
3192 intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1;
3194 /* Write request msg to hwrm channel */
3195 __iowrite32_copy(bp->bar0, data, msg_len / 4);
3197 for (i = msg_len; i < BNXT_HWRM_MAX_REQ_LEN; i += 4)
3198 writel(0, bp->bar0 + i);
3200 /* currently supports only one outstanding message */
3202 bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id);
3204 /* Ring channel doorbell */
3205 writel(1, bp->bar0 + 0x100);
3208 timeout = DFLT_HWRM_CMD_TIMEOUT;
3211 tmo_count = timeout * 40;
3213 /* Wait until hwrm response cmpl interrupt is processed */
3214 while (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID &&
3216 usleep_range(25, 40);
3219 if (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID) {
3220 netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n",
3221 le16_to_cpu(req->req_type));
3225 /* Check if response len is updated */
3226 resp_len = bp->hwrm_cmd_resp_addr + HWRM_RESP_LEN_OFFSET;
3227 for (i = 0; i < tmo_count; i++) {
3228 len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
3232 usleep_range(25, 40);
3235 if (i >= tmo_count) {
3236 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n",
3237 timeout, le16_to_cpu(req->req_type),
3238 le16_to_cpu(req->seq_id), len);
3242 /* Last word of resp contains valid bit */
3243 valid = bp->hwrm_cmd_resp_addr + len - 4;
3244 for (i = 0; i < 5; i++) {
3245 if (le32_to_cpu(*valid) & HWRM_RESP_VALID_MASK)
3251 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n",
3252 timeout, le16_to_cpu(req->req_type),
3253 le16_to_cpu(req->seq_id), len, *valid);
3258 rc = le16_to_cpu(resp->error_code);
3260 netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n",
3261 le16_to_cpu(resp->req_type),
3262 le16_to_cpu(resp->seq_id), rc);
3266 int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
3268 return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false);
3271 int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
3275 mutex_lock(&bp->hwrm_cmd_lock);
3276 rc = _hwrm_send_message(bp, msg, msg_len, timeout);
3277 mutex_unlock(&bp->hwrm_cmd_lock);
3281 int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
3286 mutex_lock(&bp->hwrm_cmd_lock);
3287 rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
3288 mutex_unlock(&bp->hwrm_cmd_lock);
3292 int bnxt_hwrm_func_rgtr_async_events(struct bnxt *bp, unsigned long *bmap,
3295 struct hwrm_func_drv_rgtr_input req = {0};
3296 DECLARE_BITMAP(async_events_bmap, 256);
3297 u32 *events = (u32 *)async_events_bmap;
3300 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1);
3303 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);
3305 memset(async_events_bmap, 0, sizeof(async_events_bmap));
3306 for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++)
3307 __set_bit(bnxt_async_events_arr[i], async_events_bmap);
3309 if (bmap && bmap_size) {
3310 for (i = 0; i < bmap_size; i++) {
3311 if (test_bit(i, bmap))
3312 __set_bit(i, async_events_bmap);
3316 for (i = 0; i < 8; i++)
3317 req.async_event_fwd[i] |= cpu_to_le32(events[i]);
3319 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3322 static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp)
3324 struct hwrm_func_drv_rgtr_input req = {0};
3326 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1);
3329 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE |
3330 FUNC_DRV_RGTR_REQ_ENABLES_VER);
3332 req.os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX);
3333 req.ver_maj = DRV_VER_MAJ;
3334 req.ver_min = DRV_VER_MIN;
3335 req.ver_upd = DRV_VER_UPD;
3338 DECLARE_BITMAP(vf_req_snif_bmap, 256);
3339 u32 *data = (u32 *)vf_req_snif_bmap;
3342 memset(vf_req_snif_bmap, 0, sizeof(vf_req_snif_bmap));
3343 for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++)
3344 __set_bit(bnxt_vf_req_snif[i], vf_req_snif_bmap);
3346 for (i = 0; i < 8; i++)
3347 req.vf_req_fwd[i] = cpu_to_le32(data[i]);
3350 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD);
3353 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3356 static int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp)
3358 struct hwrm_func_drv_unrgtr_input req = {0};
3360 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_UNRGTR, -1, -1);
3361 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3364 static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
3367 struct hwrm_tunnel_dst_port_free_input req = {0};
3369 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_FREE, -1, -1);
3370 req.tunnel_type = tunnel_type;
3372 switch (tunnel_type) {
3373 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
3374 req.tunnel_dst_port_id = bp->vxlan_fw_dst_port_id;
3376 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
3377 req.tunnel_dst_port_id = bp->nge_fw_dst_port_id;
3383 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3385 netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n",
3390 static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,
3394 struct hwrm_tunnel_dst_port_alloc_input req = {0};
3395 struct hwrm_tunnel_dst_port_alloc_output *resp = bp->hwrm_cmd_resp_addr;
3397 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_ALLOC, -1, -1);
3399 req.tunnel_type = tunnel_type;
3400 req.tunnel_dst_port_val = port;
3402 mutex_lock(&bp->hwrm_cmd_lock);
3403 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3405 netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n",
3410 switch (tunnel_type) {
3411 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN:
3412 bp->vxlan_fw_dst_port_id = resp->tunnel_dst_port_id;
3414 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE:
3415 bp->nge_fw_dst_port_id = resp->tunnel_dst_port_id;
3422 mutex_unlock(&bp->hwrm_cmd_lock);
3426 static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id)
3428 struct hwrm_cfa_l2_set_rx_mask_input req = {0};
3429 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
3431 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_SET_RX_MASK, -1, -1);
3432 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id);
3434 req.num_mc_entries = cpu_to_le32(vnic->mc_list_count);
3435 req.mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping);
3436 req.mask = cpu_to_le32(vnic->rx_mask);
3437 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3440 #ifdef CONFIG_RFS_ACCEL
3441 static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
3442 struct bnxt_ntuple_filter *fltr)
3444 struct hwrm_cfa_ntuple_filter_free_input req = {0};
3446 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_FREE, -1, -1);
3447 req.ntuple_filter_id = fltr->filter_id;
3448 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3451 #define BNXT_NTP_FLTR_FLAGS \
3452 (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \
3453 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \
3454 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \
3455 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \
3456 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \
3457 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \
3458 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \
3459 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \
3460 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \
3461 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \
3462 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \
3463 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \
3464 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \
3465 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID)
3467 #define BNXT_NTP_TUNNEL_FLTR_FLAG \
3468 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE
3470 static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
3471 struct bnxt_ntuple_filter *fltr)
3474 struct hwrm_cfa_ntuple_filter_alloc_input req = {0};
3475 struct hwrm_cfa_ntuple_filter_alloc_output *resp =
3476 bp->hwrm_cmd_resp_addr;
3477 struct flow_keys *keys = &fltr->fkeys;
3478 struct bnxt_vnic_info *vnic = &bp->vnic_info[fltr->rxq + 1];
3480 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_ALLOC, -1, -1);
3481 req.l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx];
3483 req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
3485 req.ethertype = htons(ETH_P_IP);
3486 memcpy(req.src_macaddr, fltr->src_mac_addr, ETH_ALEN);
3487 req.ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4;
3488 req.ip_protocol = keys->basic.ip_proto;
3490 if (keys->basic.n_proto == htons(ETH_P_IPV6)) {
3493 req.ethertype = htons(ETH_P_IPV6);
3495 CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6;
3496 *(struct in6_addr *)&req.src_ipaddr[0] =
3497 keys->addrs.v6addrs.src;
3498 *(struct in6_addr *)&req.dst_ipaddr[0] =
3499 keys->addrs.v6addrs.dst;
3500 for (i = 0; i < 4; i++) {
3501 req.src_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
3502 req.dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
3505 req.src_ipaddr[0] = keys->addrs.v4addrs.src;
3506 req.src_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
3507 req.dst_ipaddr[0] = keys->addrs.v4addrs.dst;
3508 req.dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
3510 if (keys->control.flags & FLOW_DIS_ENCAPSULATION) {
3511 req.enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG);
3513 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL;
3516 req.src_port = keys->ports.src;
3517 req.src_port_mask = cpu_to_be16(0xffff);
3518 req.dst_port = keys->ports.dst;
3519 req.dst_port_mask = cpu_to_be16(0xffff);
3521 req.dst_id = cpu_to_le16(vnic->fw_vnic_id);
3522 mutex_lock(&bp->hwrm_cmd_lock);
3523 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3525 fltr->filter_id = resp->ntuple_filter_id;
3526 mutex_unlock(&bp->hwrm_cmd_lock);
3531 static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx,
3535 struct hwrm_cfa_l2_filter_alloc_input req = {0};
3536 struct hwrm_cfa_l2_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr;
3538 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_ALLOC, -1, -1);
3539 req.flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX);
3540 if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
3542 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST);
3543 req.dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id);
3545 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR |
3546 CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID |
3547 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK);
3548 memcpy(req.l2_addr, mac_addr, ETH_ALEN);
3549 req.l2_addr_mask[0] = 0xff;
3550 req.l2_addr_mask[1] = 0xff;
3551 req.l2_addr_mask[2] = 0xff;
3552 req.l2_addr_mask[3] = 0xff;
3553 req.l2_addr_mask[4] = 0xff;
3554 req.l2_addr_mask[5] = 0xff;
3556 mutex_lock(&bp->hwrm_cmd_lock);
3557 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3559 bp->vnic_info[vnic_id].fw_l2_filter_id[idx] =
3561 mutex_unlock(&bp->hwrm_cmd_lock);
3565 static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp)
3567 u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */
3570 /* Any associated ntuple filters will also be cleared by firmware. */
3571 mutex_lock(&bp->hwrm_cmd_lock);
3572 for (i = 0; i < num_of_vnics; i++) {
3573 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
3575 for (j = 0; j < vnic->uc_filter_count; j++) {
3576 struct hwrm_cfa_l2_filter_free_input req = {0};
3578 bnxt_hwrm_cmd_hdr_init(bp, &req,
3579 HWRM_CFA_L2_FILTER_FREE, -1, -1);
3581 req.l2_filter_id = vnic->fw_l2_filter_id[j];
3583 rc = _hwrm_send_message(bp, &req, sizeof(req),
3586 vnic->uc_filter_count = 0;
3588 mutex_unlock(&bp->hwrm_cmd_lock);
3593 static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
3595 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
3596 struct hwrm_vnic_tpa_cfg_input req = {0};
3598 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_TPA_CFG, -1, -1);
3601 u16 mss = bp->dev->mtu - 40;
3602 u32 nsegs, n, segs = 0, flags;
3604 flags = VNIC_TPA_CFG_REQ_FLAGS_TPA |
3605 VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA |
3606 VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE |
3607 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN |
3608 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ;
3609 if (tpa_flags & BNXT_FLAG_GRO)
3610 flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO;
3612 req.flags = cpu_to_le32(flags);
3615 cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS |
3616 VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS |
3617 VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN);
3619 /* Number of segs are log2 units, and first packet is not
3620 * included as part of this units.
3622 if (mss <= BNXT_RX_PAGE_SIZE) {
3623 n = BNXT_RX_PAGE_SIZE / mss;
3624 nsegs = (MAX_SKB_FRAGS - 1) * n;
3626 n = mss / BNXT_RX_PAGE_SIZE;
3627 if (mss & (BNXT_RX_PAGE_SIZE - 1))
3629 nsegs = (MAX_SKB_FRAGS - n) / n;
3632 segs = ilog2(nsegs);
3633 req.max_agg_segs = cpu_to_le16(segs);
3634 req.max_aggs = cpu_to_le16(VNIC_TPA_CFG_REQ_MAX_AGGS_MAX);
3636 req.min_agg_len = cpu_to_le32(512);
3638 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
3640 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3643 static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss)
3645 u32 i, j, max_rings;
3646 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
3647 struct hwrm_vnic_rss_cfg_input req = {0};
3649 if (vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID)
3652 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1);
3654 req.hash_type = cpu_to_le32(bp->rss_hash_cfg);
3655 if (vnic->flags & BNXT_VNIC_RSS_FLAG) {
3656 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
3657 max_rings = bp->rx_nr_rings - 1;
3659 max_rings = bp->rx_nr_rings;
3664 /* Fill the RSS indirection table with ring group ids */
3665 for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++, j++) {
3668 vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]);
3671 req.ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr);
3672 req.hash_key_tbl_addr =
3673 cpu_to_le64(vnic->rss_hash_key_dma_addr);
3675 req.rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
3676 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3679 static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id)
3681 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
3682 struct hwrm_vnic_plcmodes_cfg_input req = {0};
3684 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_PLCMODES_CFG, -1, -1);
3685 req.flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT |
3686 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 |
3687 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6);
3689 cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID |
3690 VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID);
3691 /* thresholds not implemented in firmware yet */
3692 req.jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh);
3693 req.hds_threshold = cpu_to_le16(bp->rx_copy_thresh);
3694 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id);
3695 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3698 static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id,
3701 struct hwrm_vnic_rss_cos_lb_ctx_free_input req = {0};
3703 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_FREE, -1, -1);
3704 req.rss_cos_lb_ctx_id =
3705 cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]);
3707 hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3708 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID;
3711 static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp)
3715 for (i = 0; i < bp->nr_vnics; i++) {
3716 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
3718 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) {
3719 if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID)
3720 bnxt_hwrm_vnic_ctx_free_one(bp, i, j);
3723 bp->rsscos_nr_ctxs = 0;
3726 static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx)
3729 struct hwrm_vnic_rss_cos_lb_ctx_alloc_input req = {0};
3730 struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp =
3731 bp->hwrm_cmd_resp_addr;
3733 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC, -1,
3736 mutex_lock(&bp->hwrm_cmd_lock);
3737 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3739 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] =
3740 le16_to_cpu(resp->rss_cos_lb_ctx_id);
3741 mutex_unlock(&bp->hwrm_cmd_lock);
3746 int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id)
3748 unsigned int ring = 0, grp_idx;
3749 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
3750 struct hwrm_vnic_cfg_input req = {0};
3753 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_CFG, -1, -1);
3755 req.enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP);
3756 /* Only RSS support for now TBD: COS & LB */
3757 if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) {
3758 req.rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
3759 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
3760 VNIC_CFG_REQ_ENABLES_MRU);
3761 } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) {
3763 cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]);
3764 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
3765 VNIC_CFG_REQ_ENABLES_MRU);
3766 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE);
3768 req.rss_rule = cpu_to_le16(0xffff);
3771 if (BNXT_CHIP_TYPE_NITRO_A0(bp) &&
3772 (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) {
3773 req.cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]);
3774 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE);
3776 req.cos_rule = cpu_to_le16(0xffff);
3779 if (vnic->flags & BNXT_VNIC_RSS_FLAG)
3781 else if (vnic->flags & BNXT_VNIC_RFS_FLAG)
3783 else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp))
3784 ring = bp->rx_nr_rings - 1;
3786 grp_idx = bp->rx_ring[ring].bnapi->index;
3787 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
3788 req.dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id);
3790 req.lb_rule = cpu_to_le16(0xffff);
3791 req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN +
3794 #ifdef CONFIG_BNXT_SRIOV
3796 def_vlan = bp->vf.vlan;
3798 if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan)
3799 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE);
3800 if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP))
3802 cpu_to_le32(VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE);
3804 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3807 static int bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id)
3811 if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) {
3812 struct hwrm_vnic_free_input req = {0};
3814 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_FREE, -1, -1);
3816 cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id);
3818 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3821 bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID;
3826 static void bnxt_hwrm_vnic_free(struct bnxt *bp)
3830 for (i = 0; i < bp->nr_vnics; i++)
3831 bnxt_hwrm_vnic_free_one(bp, i);
3834 static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id,
3835 unsigned int start_rx_ring_idx,
3836 unsigned int nr_rings)
3839 unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings;
3840 struct hwrm_vnic_alloc_input req = {0};
3841 struct hwrm_vnic_alloc_output *resp = bp->hwrm_cmd_resp_addr;
3843 /* map ring groups to this vnic */
3844 for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) {
3845 grp_idx = bp->rx_ring[i].bnapi->index;
3846 if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) {
3847 netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n",
3851 bp->vnic_info[vnic_id].fw_grp_ids[j] =
3852 bp->grp_info[grp_idx].fw_grp_id;
3855 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[0] = INVALID_HW_RING_ID;
3856 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[1] = INVALID_HW_RING_ID;
3858 req.flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT);
3860 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_ALLOC, -1, -1);
3862 mutex_lock(&bp->hwrm_cmd_lock);
3863 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3865 bp->vnic_info[vnic_id].fw_vnic_id = le32_to_cpu(resp->vnic_id);
3866 mutex_unlock(&bp->hwrm_cmd_lock);
3870 static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
3872 struct hwrm_vnic_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
3873 struct hwrm_vnic_qcaps_input req = {0};
3876 if (bp->hwrm_spec_code < 0x10600)
3879 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_QCAPS, -1, -1);
3880 mutex_lock(&bp->hwrm_cmd_lock);
3881 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
3884 cpu_to_le32(VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP))
3885 bp->flags |= BNXT_FLAG_NEW_RSS_CAP;
3887 mutex_unlock(&bp->hwrm_cmd_lock);
3891 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp)
3896 mutex_lock(&bp->hwrm_cmd_lock);
3897 for (i = 0; i < bp->rx_nr_rings; i++) {
3898 struct hwrm_ring_grp_alloc_input req = {0};
3899 struct hwrm_ring_grp_alloc_output *resp =
3900 bp->hwrm_cmd_resp_addr;
3901 unsigned int grp_idx = bp->rx_ring[i].bnapi->index;
3903 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_ALLOC, -1, -1);
3905 req.cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id);
3906 req.rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id);
3907 req.ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id);
3908 req.sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx);
3910 rc = _hwrm_send_message(bp, &req, sizeof(req),
3915 bp->grp_info[grp_idx].fw_grp_id =
3916 le32_to_cpu(resp->ring_group_id);
3918 mutex_unlock(&bp->hwrm_cmd_lock);
3922 static int bnxt_hwrm_ring_grp_free(struct bnxt *bp)
3926 struct hwrm_ring_grp_free_input req = {0};
3931 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_FREE, -1, -1);
3933 mutex_lock(&bp->hwrm_cmd_lock);
3934 for (i = 0; i < bp->cp_nr_rings; i++) {
3935 if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID)
3938 cpu_to_le32(bp->grp_info[i].fw_grp_id);
3940 rc = _hwrm_send_message(bp, &req, sizeof(req),
3944 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
3946 mutex_unlock(&bp->hwrm_cmd_lock);
3950 static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
3951 struct bnxt_ring_struct *ring,
3952 u32 ring_type, u32 map_index,
3955 int rc = 0, err = 0;
3956 struct hwrm_ring_alloc_input req = {0};
3957 struct hwrm_ring_alloc_output *resp = bp->hwrm_cmd_resp_addr;
3960 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_ALLOC, -1, -1);
3963 if (ring->nr_pages > 1) {
3964 req.page_tbl_addr = cpu_to_le64(ring->pg_tbl_map);
3965 /* Page size is in log2 units */
3966 req.page_size = BNXT_PAGE_SHIFT;
3967 req.page_tbl_depth = 1;
3969 req.page_tbl_addr = cpu_to_le64(ring->dma_arr[0]);
3972 /* Association of ring index with doorbell index and MSIX number */
3973 req.logical_id = cpu_to_le16(map_index);
3975 switch (ring_type) {
3976 case HWRM_RING_ALLOC_TX:
3977 req.ring_type = RING_ALLOC_REQ_RING_TYPE_TX;
3978 /* Association of transmit ring with completion ring */
3980 cpu_to_le16(bp->grp_info[map_index].cp_fw_ring_id);
3981 req.length = cpu_to_le32(bp->tx_ring_mask + 1);
3982 req.stat_ctx_id = cpu_to_le32(stats_ctx_id);
3983 req.queue_id = cpu_to_le16(ring->queue_id);
3985 case HWRM_RING_ALLOC_RX:
3986 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
3987 req.length = cpu_to_le32(bp->rx_ring_mask + 1);
3989 case HWRM_RING_ALLOC_AGG:
3990 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
3991 req.length = cpu_to_le32(bp->rx_agg_ring_mask + 1);
3993 case HWRM_RING_ALLOC_CMPL:
3994 req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL;
3995 req.length = cpu_to_le32(bp->cp_ring_mask + 1);
3996 if (bp->flags & BNXT_FLAG_USING_MSIX)
3997 req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
4000 netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n",
4005 mutex_lock(&bp->hwrm_cmd_lock);
4006 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4007 err = le16_to_cpu(resp->error_code);
4008 ring_id = le16_to_cpu(resp->ring_id);
4009 mutex_unlock(&bp->hwrm_cmd_lock);
4012 switch (ring_type) {
4013 case RING_FREE_REQ_RING_TYPE_L2_CMPL:
4014 netdev_err(bp->dev, "hwrm_ring_alloc cp failed. rc:%x err:%x\n",
4018 case RING_FREE_REQ_RING_TYPE_RX:
4019 netdev_err(bp->dev, "hwrm_ring_alloc rx failed. rc:%x err:%x\n",
4023 case RING_FREE_REQ_RING_TYPE_TX:
4024 netdev_err(bp->dev, "hwrm_ring_alloc tx failed. rc:%x err:%x\n",
4029 netdev_err(bp->dev, "Invalid ring\n");
4033 ring->fw_ring_id = ring_id;
4037 static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx)
4042 struct hwrm_func_cfg_input req = {0};
4044 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
4045 req.fid = cpu_to_le16(0xffff);
4046 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
4047 req.async_event_cr = cpu_to_le16(idx);
4048 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4050 struct hwrm_func_vf_cfg_input req = {0};
4052 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
4054 cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
4055 req.async_event_cr = cpu_to_le16(idx);
4056 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4061 static int bnxt_hwrm_ring_alloc(struct bnxt *bp)
4065 for (i = 0; i < bp->cp_nr_rings; i++) {
4066 struct bnxt_napi *bnapi = bp->bnapi[i];
4067 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4068 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
4070 cpr->cp_doorbell = bp->bar1 + i * 0x80;
4071 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_CMPL, i,
4072 INVALID_STATS_CTX_ID);
4075 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons);
4076 bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id;
4079 rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id);
4081 netdev_warn(bp->dev, "Failed to set async event completion ring.\n");
4085 for (i = 0; i < bp->tx_nr_rings; i++) {
4086 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
4087 struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
4088 u32 map_idx = txr->bnapi->index;
4089 u16 fw_stats_ctx = bp->grp_info[map_idx].fw_stats_ctx;
4091 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_TX,
4092 map_idx, fw_stats_ctx);
4095 txr->tx_doorbell = bp->bar1 + map_idx * 0x80;
4098 for (i = 0; i < bp->rx_nr_rings; i++) {
4099 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
4100 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
4101 u32 map_idx = rxr->bnapi->index;
4103 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_RX,
4104 map_idx, INVALID_STATS_CTX_ID);
4107 rxr->rx_doorbell = bp->bar1 + map_idx * 0x80;
4108 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell);
4109 bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id;
4112 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
4113 for (i = 0; i < bp->rx_nr_rings; i++) {
4114 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
4115 struct bnxt_ring_struct *ring =
4116 &rxr->rx_agg_ring_struct;
4117 u32 grp_idx = rxr->bnapi->index;
4118 u32 map_idx = grp_idx + bp->rx_nr_rings;
4120 rc = hwrm_ring_alloc_send_msg(bp, ring,
4121 HWRM_RING_ALLOC_AGG,
4123 INVALID_STATS_CTX_ID);
4127 rxr->rx_agg_doorbell = bp->bar1 + map_idx * 0x80;
4128 writel(DB_KEY_RX | rxr->rx_agg_prod,
4129 rxr->rx_agg_doorbell);
4130 bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id;
4137 static int hwrm_ring_free_send_msg(struct bnxt *bp,
4138 struct bnxt_ring_struct *ring,
4139 u32 ring_type, int cmpl_ring_id)
4142 struct hwrm_ring_free_input req = {0};
4143 struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
4146 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1);
4147 req.ring_type = ring_type;
4148 req.ring_id = cpu_to_le16(ring->fw_ring_id);
4150 mutex_lock(&bp->hwrm_cmd_lock);
4151 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4152 error_code = le16_to_cpu(resp->error_code);
4153 mutex_unlock(&bp->hwrm_cmd_lock);
4155 if (rc || error_code) {
4156 switch (ring_type) {
4157 case RING_FREE_REQ_RING_TYPE_L2_CMPL:
4158 netdev_err(bp->dev, "hwrm_ring_free cp failed. rc:%d\n",
4161 case RING_FREE_REQ_RING_TYPE_RX:
4162 netdev_err(bp->dev, "hwrm_ring_free rx failed. rc:%d\n",
4165 case RING_FREE_REQ_RING_TYPE_TX:
4166 netdev_err(bp->dev, "hwrm_ring_free tx failed. rc:%d\n",
4170 netdev_err(bp->dev, "Invalid ring\n");
4177 static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path)
4184 for (i = 0; i < bp->tx_nr_rings; i++) {
4185 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
4186 struct bnxt_ring_struct *ring = &txr->tx_ring_struct;
4187 u32 grp_idx = txr->bnapi->index;
4188 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id;
4190 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
4191 hwrm_ring_free_send_msg(bp, ring,
4192 RING_FREE_REQ_RING_TYPE_TX,
4193 close_path ? cmpl_ring_id :
4194 INVALID_HW_RING_ID);
4195 ring->fw_ring_id = INVALID_HW_RING_ID;
4199 for (i = 0; i < bp->rx_nr_rings; i++) {
4200 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
4201 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
4202 u32 grp_idx = rxr->bnapi->index;
4203 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id;
4205 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
4206 hwrm_ring_free_send_msg(bp, ring,
4207 RING_FREE_REQ_RING_TYPE_RX,
4208 close_path ? cmpl_ring_id :
4209 INVALID_HW_RING_ID);
4210 ring->fw_ring_id = INVALID_HW_RING_ID;
4211 bp->grp_info[grp_idx].rx_fw_ring_id =
4216 for (i = 0; i < bp->rx_nr_rings; i++) {
4217 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
4218 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct;
4219 u32 grp_idx = rxr->bnapi->index;
4220 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id;
4222 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
4223 hwrm_ring_free_send_msg(bp, ring,
4224 RING_FREE_REQ_RING_TYPE_RX,
4225 close_path ? cmpl_ring_id :
4226 INVALID_HW_RING_ID);
4227 ring->fw_ring_id = INVALID_HW_RING_ID;
4228 bp->grp_info[grp_idx].agg_fw_ring_id =
4233 /* The completion rings are about to be freed. After that the
4234 * IRQ doorbell will not work anymore. So we need to disable
4237 bnxt_disable_int_sync(bp);
4239 for (i = 0; i < bp->cp_nr_rings; i++) {
4240 struct bnxt_napi *bnapi = bp->bnapi[i];
4241 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4242 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
4244 if (ring->fw_ring_id != INVALID_HW_RING_ID) {
4245 hwrm_ring_free_send_msg(bp, ring,
4246 RING_FREE_REQ_RING_TYPE_L2_CMPL,
4247 INVALID_HW_RING_ID);
4248 ring->fw_ring_id = INVALID_HW_RING_ID;
4249 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
4254 /* Caller must hold bp->hwrm_cmd_lock */
4255 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings)
4257 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
4258 struct hwrm_func_qcfg_input req = {0};
4261 if (bp->hwrm_spec_code < 0x10601)
4264 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
4265 req.fid = cpu_to_le16(fid);
4266 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4268 *tx_rings = le16_to_cpu(resp->alloc_tx_rings);
4273 static int bnxt_hwrm_reserve_tx_rings(struct bnxt *bp, int *tx_rings)
4275 struct hwrm_func_cfg_input req = {0};
4278 if (bp->hwrm_spec_code < 0x10601)
4284 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
4285 req.fid = cpu_to_le16(0xffff);
4286 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS);
4287 req.num_tx_rings = cpu_to_le16(*tx_rings);
4288 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4292 mutex_lock(&bp->hwrm_cmd_lock);
4293 rc = __bnxt_hwrm_get_tx_rings(bp, 0xffff, tx_rings);
4294 mutex_unlock(&bp->hwrm_cmd_lock);
4298 static void bnxt_hwrm_set_coal_params(struct bnxt *bp, u32 max_bufs,
4299 u32 buf_tmrs, u16 flags,
4300 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req)
4302 req->flags = cpu_to_le16(flags);
4303 req->num_cmpl_dma_aggr = cpu_to_le16((u16)max_bufs);
4304 req->num_cmpl_dma_aggr_during_int = cpu_to_le16(max_bufs >> 16);
4305 req->cmpl_aggr_dma_tmr = cpu_to_le16((u16)buf_tmrs);
4306 req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(buf_tmrs >> 16);
4307 /* Minimum time between 2 interrupts set to buf_tmr x 2 */
4308 req->int_lat_tmr_min = cpu_to_le16((u16)buf_tmrs * 2);
4309 req->int_lat_tmr_max = cpu_to_le16((u16)buf_tmrs * 4);
4310 req->num_cmpl_aggr_int = cpu_to_le16((u16)max_bufs * 4);
4313 int bnxt_hwrm_set_coal(struct bnxt *bp)
4316 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req_rx = {0},
4318 u16 max_buf, max_buf_irq;
4319 u16 buf_tmr, buf_tmr_irq;
4322 bnxt_hwrm_cmd_hdr_init(bp, &req_rx,
4323 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1);
4324 bnxt_hwrm_cmd_hdr_init(bp, &req_tx,
4325 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1);
4327 /* Each rx completion (2 records) should be DMAed immediately.
4328 * DMA 1/4 of the completion buffers at a time.
4330 max_buf = min_t(u16, bp->rx_coal_bufs / 4, 2);
4331 /* max_buf must not be zero */
4332 max_buf = clamp_t(u16, max_buf, 1, 63);
4333 max_buf_irq = clamp_t(u16, bp->rx_coal_bufs_irq, 1, 63);
4334 buf_tmr = BNXT_USEC_TO_COAL_TIMER(bp->rx_coal_ticks);
4335 /* buf timer set to 1/4 of interrupt timer */
4336 buf_tmr = max_t(u16, buf_tmr / 4, 1);
4337 buf_tmr_irq = BNXT_USEC_TO_COAL_TIMER(bp->rx_coal_ticks_irq);
4338 buf_tmr_irq = max_t(u16, buf_tmr_irq, 1);
4340 flags = RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET;
4342 /* RING_IDLE generates more IRQs for lower latency. Enable it only
4343 * if coal_ticks is less than 25 us.
4345 if (bp->rx_coal_ticks < 25)
4346 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE;
4348 bnxt_hwrm_set_coal_params(bp, max_buf_irq << 16 | max_buf,
4349 buf_tmr_irq << 16 | buf_tmr, flags, &req_rx);
4351 /* max_buf must not be zero */
4352 max_buf = clamp_t(u16, bp->tx_coal_bufs, 1, 63);
4353 max_buf_irq = clamp_t(u16, bp->tx_coal_bufs_irq, 1, 63);
4354 buf_tmr = BNXT_USEC_TO_COAL_TIMER(bp->tx_coal_ticks);
4355 /* buf timer set to 1/4 of interrupt timer */
4356 buf_tmr = max_t(u16, buf_tmr / 4, 1);
4357 buf_tmr_irq = BNXT_USEC_TO_COAL_TIMER(bp->tx_coal_ticks_irq);
4358 buf_tmr_irq = max_t(u16, buf_tmr_irq, 1);
4360 flags = RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET;
4361 bnxt_hwrm_set_coal_params(bp, max_buf_irq << 16 | max_buf,
4362 buf_tmr_irq << 16 | buf_tmr, flags, &req_tx);
4364 mutex_lock(&bp->hwrm_cmd_lock);
4365 for (i = 0; i < bp->cp_nr_rings; i++) {
4366 struct bnxt_napi *bnapi = bp->bnapi[i];
4369 if (!bnapi->rx_ring)
4371 req->ring_id = cpu_to_le16(bp->grp_info[i].cp_fw_ring_id);
4373 rc = _hwrm_send_message(bp, req, sizeof(*req),
4378 mutex_unlock(&bp->hwrm_cmd_lock);
4382 static int bnxt_hwrm_stat_ctx_free(struct bnxt *bp)
4385 struct hwrm_stat_ctx_free_input req = {0};
4390 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
4393 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_FREE, -1, -1);
4395 mutex_lock(&bp->hwrm_cmd_lock);
4396 for (i = 0; i < bp->cp_nr_rings; i++) {
4397 struct bnxt_napi *bnapi = bp->bnapi[i];
4398 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4400 if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) {
4401 req.stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id);
4403 rc = _hwrm_send_message(bp, &req, sizeof(req),
4408 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
4411 mutex_unlock(&bp->hwrm_cmd_lock);
4415 static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp)
4418 struct hwrm_stat_ctx_alloc_input req = {0};
4419 struct hwrm_stat_ctx_alloc_output *resp = bp->hwrm_cmd_resp_addr;
4421 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
4424 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_ALLOC, -1, -1);
4426 req.update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000);
4428 mutex_lock(&bp->hwrm_cmd_lock);
4429 for (i = 0; i < bp->cp_nr_rings; i++) {
4430 struct bnxt_napi *bnapi = bp->bnapi[i];
4431 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
4433 req.stats_dma_addr = cpu_to_le64(cpr->hw_stats_map);
4435 rc = _hwrm_send_message(bp, &req, sizeof(req),
4440 cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id);
4442 bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
4444 mutex_unlock(&bp->hwrm_cmd_lock);
4448 static int bnxt_hwrm_func_qcfg(struct bnxt *bp)
4450 struct hwrm_func_qcfg_input req = {0};
4451 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
4454 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
4455 req.fid = cpu_to_le16(0xffff);
4456 mutex_lock(&bp->hwrm_cmd_lock);
4457 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4459 goto func_qcfg_exit;
4461 #ifdef CONFIG_BNXT_SRIOV
4463 struct bnxt_vf_info *vf = &bp->vf;
4465 vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK;
4468 if (BNXT_PF(bp) && (le16_to_cpu(resp->flags) &
4469 FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED))
4470 bp->flags |= BNXT_FLAG_FW_LLDP_AGENT;
4472 switch (resp->port_partition_type) {
4473 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0:
4474 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5:
4475 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0:
4476 bp->port_partition_type = resp->port_partition_type;
4481 mutex_unlock(&bp->hwrm_cmd_lock);
4485 static int bnxt_hwrm_func_qcaps(struct bnxt *bp)
4488 struct hwrm_func_qcaps_input req = {0};
4489 struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
4491 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
4492 req.fid = cpu_to_le16(0xffff);
4494 mutex_lock(&bp->hwrm_cmd_lock);
4495 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4497 goto hwrm_func_qcaps_exit;
4499 if (resp->flags & cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED))
4500 bp->flags |= BNXT_FLAG_ROCEV1_CAP;
4501 if (resp->flags & cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED))
4502 bp->flags |= BNXT_FLAG_ROCEV2_CAP;
4504 bp->tx_push_thresh = 0;
4506 cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED))
4507 bp->tx_push_thresh = BNXT_TX_PUSH_THRESH;
4510 struct bnxt_pf_info *pf = &bp->pf;
4512 pf->fw_fid = le16_to_cpu(resp->fid);
4513 pf->port_id = le16_to_cpu(resp->port_id);
4514 bp->dev->dev_port = pf->port_id;
4515 memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN);
4516 memcpy(bp->dev->dev_addr, pf->mac_addr, ETH_ALEN);
4517 pf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
4518 pf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
4519 pf->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
4520 pf->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
4521 pf->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps);
4522 if (!pf->max_hw_ring_grps)
4523 pf->max_hw_ring_grps = pf->max_tx_rings;
4524 pf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
4525 pf->max_vnics = le16_to_cpu(resp->max_vnics);
4526 pf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
4527 pf->first_vf_id = le16_to_cpu(resp->first_vf_id);
4528 pf->max_vfs = le16_to_cpu(resp->max_vfs);
4529 pf->max_encap_records = le32_to_cpu(resp->max_encap_records);
4530 pf->max_decap_records = le32_to_cpu(resp->max_decap_records);
4531 pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows);
4532 pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows);
4533 pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows);
4534 pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows);
4536 #ifdef CONFIG_BNXT_SRIOV
4537 struct bnxt_vf_info *vf = &bp->vf;
4539 vf->fw_fid = le16_to_cpu(resp->fid);
4541 vf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
4542 vf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
4543 vf->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
4544 vf->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
4545 vf->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps);
4546 if (!vf->max_hw_ring_grps)
4547 vf->max_hw_ring_grps = vf->max_tx_rings;
4548 vf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
4549 vf->max_vnics = le16_to_cpu(resp->max_vnics);
4550 vf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
4552 memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN);
4553 mutex_unlock(&bp->hwrm_cmd_lock);
4555 if (is_valid_ether_addr(vf->mac_addr)) {
4556 /* overwrite netdev dev_adr with admin VF MAC */
4557 memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN);
4559 eth_hw_addr_random(bp->dev);
4560 rc = bnxt_approve_mac(bp, bp->dev->dev_addr);
4566 hwrm_func_qcaps_exit:
4567 mutex_unlock(&bp->hwrm_cmd_lock);
4571 static int bnxt_hwrm_func_reset(struct bnxt *bp)
4573 struct hwrm_func_reset_input req = {0};
4575 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESET, -1, -1);
4578 return hwrm_send_message(bp, &req, sizeof(req), HWRM_RESET_TIMEOUT);
4581 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
4584 struct hwrm_queue_qportcfg_input req = {0};
4585 struct hwrm_queue_qportcfg_output *resp = bp->hwrm_cmd_resp_addr;
4588 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_QPORTCFG, -1, -1);
4590 mutex_lock(&bp->hwrm_cmd_lock);
4591 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4595 if (!resp->max_configurable_queues) {
4599 bp->max_tc = resp->max_configurable_queues;
4600 bp->max_lltc = resp->max_configurable_lossless_queues;
4601 if (bp->max_tc > BNXT_MAX_QUEUE)
4602 bp->max_tc = BNXT_MAX_QUEUE;
4604 if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG)
4607 if (bp->max_lltc > bp->max_tc)
4608 bp->max_lltc = bp->max_tc;
4610 qptr = &resp->queue_id0;
4611 for (i = 0; i < bp->max_tc; i++) {
4612 bp->q_info[i].queue_id = *qptr++;
4613 bp->q_info[i].queue_profile = *qptr++;
4617 mutex_unlock(&bp->hwrm_cmd_lock);
4621 static int bnxt_hwrm_ver_get(struct bnxt *bp)
4624 struct hwrm_ver_get_input req = {0};
4625 struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr;
4627 bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN;
4628 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VER_GET, -1, -1);
4629 req.hwrm_intf_maj = HWRM_VERSION_MAJOR;
4630 req.hwrm_intf_min = HWRM_VERSION_MINOR;
4631 req.hwrm_intf_upd = HWRM_VERSION_UPDATE;
4632 mutex_lock(&bp->hwrm_cmd_lock);
4633 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4635 goto hwrm_ver_get_exit;
4637 memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output));
4639 bp->hwrm_spec_code = resp->hwrm_intf_maj << 16 |
4640 resp->hwrm_intf_min << 8 | resp->hwrm_intf_upd;
4641 if (resp->hwrm_intf_maj < 1) {
4642 netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n",
4643 resp->hwrm_intf_maj, resp->hwrm_intf_min,
4644 resp->hwrm_intf_upd);
4645 netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n");
4647 snprintf(bp->fw_ver_str, BC_HWRM_STR_LEN, "%d.%d.%d/%d.%d.%d",
4648 resp->hwrm_fw_maj, resp->hwrm_fw_min, resp->hwrm_fw_bld,
4649 resp->hwrm_intf_maj, resp->hwrm_intf_min, resp->hwrm_intf_upd);
4651 bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout);
4652 if (!bp->hwrm_cmd_timeout)
4653 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
4655 if (resp->hwrm_intf_maj >= 1)
4656 bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len);
4658 bp->chip_num = le16_to_cpu(resp->chip_num);
4659 if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev &&
4661 bp->flags |= BNXT_FLAG_CHIP_NITRO_A0;
4664 mutex_unlock(&bp->hwrm_cmd_lock);
4668 int bnxt_hwrm_fw_set_time(struct bnxt *bp)
4670 #if IS_ENABLED(CONFIG_RTC_LIB)
4671 struct hwrm_fw_set_time_input req = {0};
4675 if (bp->hwrm_spec_code < 0x10400)
4678 do_gettimeofday(&tv);
4679 rtc_time_to_tm(tv.tv_sec, &tm);
4680 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_SET_TIME, -1, -1);
4681 req.year = cpu_to_le16(1900 + tm.tm_year);
4682 req.month = 1 + tm.tm_mon;
4683 req.day = tm.tm_mday;
4684 req.hour = tm.tm_hour;
4685 req.minute = tm.tm_min;
4686 req.second = tm.tm_sec;
4687 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4693 static int bnxt_hwrm_port_qstats(struct bnxt *bp)
4696 struct bnxt_pf_info *pf = &bp->pf;
4697 struct hwrm_port_qstats_input req = {0};
4699 if (!(bp->flags & BNXT_FLAG_PORT_STATS))
4702 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS, -1, -1);
4703 req.port_id = cpu_to_le16(pf->port_id);
4704 req.tx_stat_host_addr = cpu_to_le64(bp->hw_tx_port_stats_map);
4705 req.rx_stat_host_addr = cpu_to_le64(bp->hw_rx_port_stats_map);
4706 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
4710 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
4712 if (bp->vxlan_port_cnt) {
4713 bnxt_hwrm_tunnel_dst_port_free(
4714 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
4716 bp->vxlan_port_cnt = 0;
4717 if (bp->nge_port_cnt) {
4718 bnxt_hwrm_tunnel_dst_port_free(
4719 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
4721 bp->nge_port_cnt = 0;
4724 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
4730 tpa_flags = bp->flags & BNXT_FLAG_TPA;
4731 for (i = 0; i < bp->nr_vnics; i++) {
4732 rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags);
4734 netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n",
4742 static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp)
4746 for (i = 0; i < bp->nr_vnics; i++)
4747 bnxt_hwrm_vnic_set_rss(bp, i, false);
4750 static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path,
4753 if (bp->vnic_info) {
4754 bnxt_hwrm_clear_vnic_filter(bp);
4755 /* clear all RSS setting before free vnic ctx */
4756 bnxt_hwrm_clear_vnic_rss(bp);
4757 bnxt_hwrm_vnic_ctx_free(bp);
4758 /* before free the vnic, undo the vnic tpa settings */
4759 if (bp->flags & BNXT_FLAG_TPA)
4760 bnxt_set_tpa(bp, false);
4761 bnxt_hwrm_vnic_free(bp);
4763 bnxt_hwrm_ring_free(bp, close_path);
4764 bnxt_hwrm_ring_grp_free(bp);
4766 bnxt_hwrm_stat_ctx_free(bp);
4767 bnxt_hwrm_free_tunnel_ports(bp);
4771 static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
4773 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
4776 if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG)
4779 /* allocate context for vnic */
4780 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0);
4782 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
4784 goto vnic_setup_err;
4786 bp->rsscos_nr_ctxs++;
4788 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
4789 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1);
4791 netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n",
4793 goto vnic_setup_err;
4795 bp->rsscos_nr_ctxs++;
4799 /* configure default vnic, ring grp */
4800 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
4802 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
4804 goto vnic_setup_err;
4807 /* Enable RSS hashing on vnic */
4808 rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true);
4810 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n",
4812 goto vnic_setup_err;
4815 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
4816 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
4818 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
4827 static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
4829 #ifdef CONFIG_RFS_ACCEL
4832 for (i = 0; i < bp->rx_nr_rings; i++) {
4833 struct bnxt_vnic_info *vnic;
4834 u16 vnic_id = i + 1;
4837 if (vnic_id >= bp->nr_vnics)
4840 vnic = &bp->vnic_info[vnic_id];
4841 vnic->flags |= BNXT_VNIC_RFS_FLAG;
4842 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
4843 vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG;
4844 rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1);
4846 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
4850 rc = bnxt_setup_vnic(bp, vnic_id);
4860 /* Allow PF and VF with default VLAN to be in promiscuous mode */
4861 static bool bnxt_promisc_ok(struct bnxt *bp)
4863 #ifdef CONFIG_BNXT_SRIOV
4864 if (BNXT_VF(bp) && !bp->vf.vlan)
4870 static int bnxt_setup_nitroa0_vnic(struct bnxt *bp)
4872 unsigned int rc = 0;
4874 rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1);
4876 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
4881 rc = bnxt_hwrm_vnic_cfg(bp, 1);
4883 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
4890 static int bnxt_cfg_rx_mode(struct bnxt *);
4891 static bool bnxt_mc_list_updated(struct bnxt *, u32 *);
4893 static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
4895 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
4897 unsigned int rx_nr_rings = bp->rx_nr_rings;
4900 rc = bnxt_hwrm_stat_ctx_alloc(bp);
4902 netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n",
4908 rc = bnxt_hwrm_ring_alloc(bp);
4910 netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc);
4914 rc = bnxt_hwrm_ring_grp_alloc(bp);
4916 netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc);
4920 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
4923 /* default vnic 0 */
4924 rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings);
4926 netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc);
4930 rc = bnxt_setup_vnic(bp, 0);
4934 if (bp->flags & BNXT_FLAG_RFS) {
4935 rc = bnxt_alloc_rfs_vnics(bp);
4940 if (bp->flags & BNXT_FLAG_TPA) {
4941 rc = bnxt_set_tpa(bp, true);
4947 bnxt_update_vf_mac(bp);
4949 /* Filter for default vnic 0 */
4950 rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr);
4952 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
4955 vnic->uc_filter_count = 1;
4957 vnic->rx_mask = CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
4959 if ((bp->dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp))
4960 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
4962 if (bp->dev->flags & IFF_ALLMULTI) {
4963 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
4964 vnic->mc_list_count = 0;
4968 bnxt_mc_list_updated(bp, &mask);
4969 vnic->rx_mask |= mask;
4972 rc = bnxt_cfg_rx_mode(bp);
4976 rc = bnxt_hwrm_set_coal(bp);
4978 netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n",
4981 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
4982 rc = bnxt_setup_nitroa0_vnic(bp);
4984 netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n",
4989 bnxt_hwrm_func_qcfg(bp);
4990 netdev_update_features(bp->dev);
4996 bnxt_hwrm_resource_free(bp, 0, true);
5001 static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init)
5003 bnxt_hwrm_resource_free(bp, 1, irq_re_init);
5007 static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init)
5009 bnxt_init_rx_rings(bp);
5010 bnxt_init_tx_rings(bp);
5011 bnxt_init_ring_grps(bp, irq_re_init);
5012 bnxt_init_vnics(bp);
5014 return bnxt_init_chip(bp, irq_re_init);
5017 static int bnxt_set_real_num_queues(struct bnxt *bp)
5020 struct net_device *dev = bp->dev;
5022 rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings -
5023 bp->tx_nr_rings_xdp);
5027 rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings);
5031 #ifdef CONFIG_RFS_ACCEL
5032 if (bp->flags & BNXT_FLAG_RFS)
5033 dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings);
5039 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max,
5042 int _rx = *rx, _tx = *tx;
5045 *rx = min_t(int, _rx, max);
5046 *tx = min_t(int, _tx, max);
5051 while (_rx + _tx > max) {
5052 if (_rx > _tx && _rx > 1)
5063 static void bnxt_setup_msix(struct bnxt *bp)
5065 const int len = sizeof(bp->irq_tbl[0].name);
5066 struct net_device *dev = bp->dev;
5069 tcs = netdev_get_num_tc(dev);
5073 for (i = 0; i < tcs; i++) {
5074 count = bp->tx_nr_rings_per_tc;
5076 netdev_set_tc_queue(dev, i, count, off);
5080 for (i = 0; i < bp->cp_nr_rings; i++) {
5083 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
5085 else if (i < bp->rx_nr_rings)
5090 snprintf(bp->irq_tbl[i].name, len, "%s-%s-%d", dev->name, attr,
5092 bp->irq_tbl[i].handler = bnxt_msix;
5096 static void bnxt_setup_inta(struct bnxt *bp)
5098 const int len = sizeof(bp->irq_tbl[0].name);
5100 if (netdev_get_num_tc(bp->dev))
5101 netdev_reset_tc(bp->dev);
5103 snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx",
5105 bp->irq_tbl[0].handler = bnxt_inta;
5108 static int bnxt_setup_int_mode(struct bnxt *bp)
5112 if (bp->flags & BNXT_FLAG_USING_MSIX)
5113 bnxt_setup_msix(bp);
5115 bnxt_setup_inta(bp);
5117 rc = bnxt_set_real_num_queues(bp);
5121 #ifdef CONFIG_RFS_ACCEL
5122 static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp)
5124 #if defined(CONFIG_BNXT_SRIOV)
5126 return bp->vf.max_rsscos_ctxs;
5128 return bp->pf.max_rsscos_ctxs;
5131 static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp)
5133 #if defined(CONFIG_BNXT_SRIOV)
5135 return bp->vf.max_vnics;
5137 return bp->pf.max_vnics;
5141 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp)
5143 #if defined(CONFIG_BNXT_SRIOV)
5145 return bp->vf.max_stat_ctxs;
5147 return bp->pf.max_stat_ctxs;
5150 void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max)
5152 #if defined(CONFIG_BNXT_SRIOV)
5154 bp->vf.max_stat_ctxs = max;
5157 bp->pf.max_stat_ctxs = max;
5160 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp)
5162 #if defined(CONFIG_BNXT_SRIOV)
5164 return bp->vf.max_cp_rings;
5166 return bp->pf.max_cp_rings;
5169 void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max)
5171 #if defined(CONFIG_BNXT_SRIOV)
5173 bp->vf.max_cp_rings = max;
5176 bp->pf.max_cp_rings = max;
5179 static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
5181 #if defined(CONFIG_BNXT_SRIOV)
5183 return bp->vf.max_irqs;
5185 return bp->pf.max_irqs;
5188 void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs)
5190 #if defined(CONFIG_BNXT_SRIOV)
5192 bp->vf.max_irqs = max_irqs;
5195 bp->pf.max_irqs = max_irqs;
5198 static int bnxt_init_msix(struct bnxt *bp)
5200 int i, total_vecs, rc = 0, min = 1;
5201 struct msix_entry *msix_ent;
5203 total_vecs = bnxt_get_max_func_irqs(bp);
5204 msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL);
5208 for (i = 0; i < total_vecs; i++) {
5209 msix_ent[i].entry = i;
5210 msix_ent[i].vector = 0;
5213 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
5216 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs);
5217 if (total_vecs < 0) {
5219 goto msix_setup_exit;
5222 bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL);
5224 for (i = 0; i < total_vecs; i++)
5225 bp->irq_tbl[i].vector = msix_ent[i].vector;
5227 bp->total_irqs = total_vecs;
5228 /* Trim rings based upon num of vectors allocated */
5229 rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings,
5230 total_vecs, min == 1);
5232 goto msix_setup_exit;
5234 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
5235 bp->cp_nr_rings = (min == 1) ?
5236 max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
5237 bp->tx_nr_rings + bp->rx_nr_rings;
5241 goto msix_setup_exit;
5243 bp->flags |= BNXT_FLAG_USING_MSIX;
5248 netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc);
5251 pci_disable_msix(bp->pdev);
5256 static int bnxt_init_inta(struct bnxt *bp)
5258 bp->irq_tbl = kcalloc(1, sizeof(struct bnxt_irq), GFP_KERNEL);
5263 bp->rx_nr_rings = 1;
5264 bp->tx_nr_rings = 1;
5265 bp->cp_nr_rings = 1;
5266 bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
5267 bp->flags |= BNXT_FLAG_SHARED_RINGS;
5268 bp->irq_tbl[0].vector = bp->pdev->irq;
5272 static int bnxt_init_int_mode(struct bnxt *bp)
5276 if (bp->flags & BNXT_FLAG_MSIX_CAP)
5277 rc = bnxt_init_msix(bp);
5279 if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) {
5280 /* fallback to INTA */
5281 rc = bnxt_init_inta(bp);
5286 static void bnxt_clear_int_mode(struct bnxt *bp)
5288 if (bp->flags & BNXT_FLAG_USING_MSIX)
5289 pci_disable_msix(bp->pdev);
5293 bp->flags &= ~BNXT_FLAG_USING_MSIX;
5296 static void bnxt_free_irq(struct bnxt *bp)
5298 struct bnxt_irq *irq;
5301 #ifdef CONFIG_RFS_ACCEL
5302 free_irq_cpu_rmap(bp->dev->rx_cpu_rmap);
5303 bp->dev->rx_cpu_rmap = NULL;
5308 for (i = 0; i < bp->cp_nr_rings; i++) {
5309 irq = &bp->irq_tbl[i];
5311 free_irq(irq->vector, bp->bnapi[i]);
5316 static int bnxt_request_irq(struct bnxt *bp)
5319 unsigned long flags = 0;
5320 #ifdef CONFIG_RFS_ACCEL
5321 struct cpu_rmap *rmap = bp->dev->rx_cpu_rmap;
5324 if (!(bp->flags & BNXT_FLAG_USING_MSIX))
5325 flags = IRQF_SHARED;
5327 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) {
5328 struct bnxt_irq *irq = &bp->irq_tbl[i];
5329 #ifdef CONFIG_RFS_ACCEL
5330 if (rmap && bp->bnapi[i]->rx_ring) {
5331 rc = irq_cpu_rmap_add(rmap, irq->vector);
5333 netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n",
5338 rc = request_irq(irq->vector, irq->handler, flags, irq->name,
5348 static void bnxt_del_napi(struct bnxt *bp)
5355 for (i = 0; i < bp->cp_nr_rings; i++) {
5356 struct bnxt_napi *bnapi = bp->bnapi[i];
5358 napi_hash_del(&bnapi->napi);
5359 netif_napi_del(&bnapi->napi);
5361 /* We called napi_hash_del() before netif_napi_del(), we need
5362 * to respect an RCU grace period before freeing napi structures.
5367 static void bnxt_init_napi(struct bnxt *bp)
5370 unsigned int cp_nr_rings = bp->cp_nr_rings;
5371 struct bnxt_napi *bnapi;
5373 if (bp->flags & BNXT_FLAG_USING_MSIX) {
5374 if (BNXT_CHIP_TYPE_NITRO_A0(bp))
5376 for (i = 0; i < cp_nr_rings; i++) {
5377 bnapi = bp->bnapi[i];
5378 netif_napi_add(bp->dev, &bnapi->napi,
5381 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
5382 bnapi = bp->bnapi[cp_nr_rings];
5383 netif_napi_add(bp->dev, &bnapi->napi,
5384 bnxt_poll_nitroa0, 64);
5387 bnapi = bp->bnapi[0];
5388 netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64);
5392 static void bnxt_disable_napi(struct bnxt *bp)
5399 for (i = 0; i < bp->cp_nr_rings; i++)
5400 napi_disable(&bp->bnapi[i]->napi);
5403 static void bnxt_enable_napi(struct bnxt *bp)
5407 for (i = 0; i < bp->cp_nr_rings; i++) {
5408 bp->bnapi[i]->in_reset = false;
5409 napi_enable(&bp->bnapi[i]->napi);
5413 void bnxt_tx_disable(struct bnxt *bp)
5416 struct bnxt_tx_ring_info *txr;
5417 struct netdev_queue *txq;
5420 for (i = 0; i < bp->tx_nr_rings; i++) {
5421 txr = &bp->tx_ring[i];
5422 txq = netdev_get_tx_queue(bp->dev, i);
5423 txr->dev_state = BNXT_DEV_STATE_CLOSING;
5426 /* Stop all TX queues */
5427 netif_tx_disable(bp->dev);
5428 netif_carrier_off(bp->dev);
5431 void bnxt_tx_enable(struct bnxt *bp)
5434 struct bnxt_tx_ring_info *txr;
5435 struct netdev_queue *txq;
5437 for (i = 0; i < bp->tx_nr_rings; i++) {
5438 txr = &bp->tx_ring[i];
5439 txq = netdev_get_tx_queue(bp->dev, i);
5442 netif_tx_wake_all_queues(bp->dev);
5443 if (bp->link_info.link_up)
5444 netif_carrier_on(bp->dev);
5447 static void bnxt_report_link(struct bnxt *bp)
5449 if (bp->link_info.link_up) {
5451 const char *flow_ctrl;
5454 netif_carrier_on(bp->dev);
5455 if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
5459 if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH)
5460 flow_ctrl = "ON - receive & transmit";
5461 else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX)
5462 flow_ctrl = "ON - transmit";
5463 else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX)
5464 flow_ctrl = "ON - receive";
5467 speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
5468 netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n",
5469 speed, duplex, flow_ctrl);
5470 if (bp->flags & BNXT_FLAG_EEE_CAP)
5471 netdev_info(bp->dev, "EEE is %s\n",
5472 bp->eee.eee_active ? "active" :
5474 fec = bp->link_info.fec_cfg;
5475 if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED))
5476 netdev_info(bp->dev, "FEC autoneg %s encodings: %s\n",
5477 (fec & BNXT_FEC_AUTONEG) ? "on" : "off",
5478 (fec & BNXT_FEC_ENC_BASE_R) ? "BaseR" :
5479 (fec & BNXT_FEC_ENC_RS) ? "RS" : "None");
5481 netif_carrier_off(bp->dev);
5482 netdev_err(bp->dev, "NIC Link is Down\n");
5486 static int bnxt_hwrm_phy_qcaps(struct bnxt *bp)
5489 struct hwrm_port_phy_qcaps_input req = {0};
5490 struct hwrm_port_phy_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
5491 struct bnxt_link_info *link_info = &bp->link_info;
5493 if (bp->hwrm_spec_code < 0x10201)
5496 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCAPS, -1, -1);
5498 mutex_lock(&bp->hwrm_cmd_lock);
5499 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5501 goto hwrm_phy_qcaps_exit;
5503 if (resp->eee_supported & PORT_PHY_QCAPS_RESP_EEE_SUPPORTED) {
5504 struct ethtool_eee *eee = &bp->eee;
5505 u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode);
5507 bp->flags |= BNXT_FLAG_EEE_CAP;
5508 eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
5509 bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) &
5510 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK;
5511 bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) &
5512 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK;
5514 if (resp->supported_speeds_auto_mode)
5515 link_info->support_auto_speeds =
5516 le16_to_cpu(resp->supported_speeds_auto_mode);
5518 hwrm_phy_qcaps_exit:
5519 mutex_unlock(&bp->hwrm_cmd_lock);
5523 static int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
5526 struct bnxt_link_info *link_info = &bp->link_info;
5527 struct hwrm_port_phy_qcfg_input req = {0};
5528 struct hwrm_port_phy_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
5529 u8 link_up = link_info->link_up;
5532 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCFG, -1, -1);
5534 mutex_lock(&bp->hwrm_cmd_lock);
5535 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5537 mutex_unlock(&bp->hwrm_cmd_lock);
5541 memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp));
5542 link_info->phy_link_status = resp->link;
5543 link_info->duplex = resp->duplex;
5544 link_info->pause = resp->pause;
5545 link_info->auto_mode = resp->auto_mode;
5546 link_info->auto_pause_setting = resp->auto_pause;
5547 link_info->lp_pause = resp->link_partner_adv_pause;
5548 link_info->force_pause_setting = resp->force_pause;
5549 link_info->duplex_setting = resp->duplex;
5550 if (link_info->phy_link_status == BNXT_LINK_LINK)
5551 link_info->link_speed = le16_to_cpu(resp->link_speed);
5553 link_info->link_speed = 0;
5554 link_info->force_link_speed = le16_to_cpu(resp->force_link_speed);
5555 link_info->support_speeds = le16_to_cpu(resp->support_speeds);
5556 link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask);
5557 link_info->lp_auto_link_speeds =
5558 le16_to_cpu(resp->link_partner_adv_speeds);
5559 link_info->preemphasis = le32_to_cpu(resp->preemphasis);
5560 link_info->phy_ver[0] = resp->phy_maj;
5561 link_info->phy_ver[1] = resp->phy_min;
5562 link_info->phy_ver[2] = resp->phy_bld;
5563 link_info->media_type = resp->media_type;
5564 link_info->phy_type = resp->phy_type;
5565 link_info->transceiver = resp->xcvr_pkg_type;
5566 link_info->phy_addr = resp->eee_config_phy_addr &
5567 PORT_PHY_QCFG_RESP_PHY_ADDR_MASK;
5568 link_info->module_status = resp->module_status;
5570 if (bp->flags & BNXT_FLAG_EEE_CAP) {
5571 struct ethtool_eee *eee = &bp->eee;
5574 eee->eee_active = 0;
5575 if (resp->eee_config_phy_addr &
5576 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) {
5577 eee->eee_active = 1;
5578 fw_speeds = le16_to_cpu(
5579 resp->link_partner_adv_eee_link_speed_mask);
5580 eee->lp_advertised =
5581 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
5584 /* Pull initial EEE config */
5585 if (!chng_link_state) {
5586 if (resp->eee_config_phy_addr &
5587 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED)
5588 eee->eee_enabled = 1;
5590 fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask);
5592 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
5594 if (resp->eee_config_phy_addr &
5595 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) {
5598 eee->tx_lpi_enabled = 1;
5599 tmr = resp->xcvr_identifier_type_tx_lpi_timer;
5600 eee->tx_lpi_timer = le32_to_cpu(tmr) &
5601 PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK;
5606 link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED;
5607 if (bp->hwrm_spec_code >= 0x10504)
5608 link_info->fec_cfg = le16_to_cpu(resp->fec_cfg);
5610 /* TODO: need to add more logic to report VF link */
5611 if (chng_link_state) {
5612 if (link_info->phy_link_status == BNXT_LINK_LINK)
5613 link_info->link_up = 1;
5615 link_info->link_up = 0;
5616 if (link_up != link_info->link_up)
5617 bnxt_report_link(bp);
5619 /* alwasy link down if not require to update link state */
5620 link_info->link_up = 0;
5622 mutex_unlock(&bp->hwrm_cmd_lock);
5624 diff = link_info->support_auto_speeds ^ link_info->advertising;
5625 if ((link_info->support_auto_speeds | diff) !=
5626 link_info->support_auto_speeds) {
5627 /* An advertised speed is no longer supported, so we need to
5628 * update the advertisement settings. Caller holds RTNL
5629 * so we can modify link settings.
5631 link_info->advertising = link_info->support_auto_speeds;
5632 if (link_info->autoneg & BNXT_AUTONEG_SPEED)
5633 bnxt_hwrm_set_link_setting(bp, true, false);
5638 static void bnxt_get_port_module_status(struct bnxt *bp)
5640 struct bnxt_link_info *link_info = &bp->link_info;
5641 struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp;
5644 if (bnxt_update_link(bp, true))
5647 module_status = link_info->module_status;
5648 switch (module_status) {
5649 case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX:
5650 case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN:
5651 case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG:
5652 netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n",
5654 if (bp->hwrm_spec_code >= 0x10201) {
5655 netdev_warn(bp->dev, "Module part number %s\n",
5656 resp->phy_vendor_partnumber);
5658 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX)
5659 netdev_warn(bp->dev, "TX is disabled\n");
5660 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN)
5661 netdev_warn(bp->dev, "SFP+ module is shutdown\n");
5666 bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req)
5668 if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) {
5669 if (bp->hwrm_spec_code >= 0x10201)
5671 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
5672 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
5673 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
5674 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
5675 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX;
5677 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
5679 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
5680 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX;
5681 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
5682 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX;
5684 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE);
5685 if (bp->hwrm_spec_code >= 0x10201) {
5686 req->auto_pause = req->force_pause;
5687 req->enables |= cpu_to_le32(
5688 PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
5693 static void bnxt_hwrm_set_link_common(struct bnxt *bp,
5694 struct hwrm_port_phy_cfg_input *req)
5696 u8 autoneg = bp->link_info.autoneg;
5697 u16 fw_link_speed = bp->link_info.req_link_speed;
5698 u16 advertising = bp->link_info.advertising;
5700 if (autoneg & BNXT_AUTONEG_SPEED) {
5702 PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK;
5704 req->enables |= cpu_to_le32(
5705 PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK);
5706 req->auto_link_speed_mask = cpu_to_le16(advertising);
5708 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE);
5710 cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG);
5712 req->force_link_speed = cpu_to_le16(fw_link_speed);
5713 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE);
5716 /* tell chimp that the setting takes effect immediately */
5717 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY);
5720 int bnxt_hwrm_set_pause(struct bnxt *bp)
5722 struct hwrm_port_phy_cfg_input req = {0};
5725 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
5726 bnxt_hwrm_set_pause_common(bp, &req);
5728 if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) ||
5729 bp->link_info.force_link_chng)
5730 bnxt_hwrm_set_link_common(bp, &req);
5732 mutex_lock(&bp->hwrm_cmd_lock);
5733 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5734 if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) {
5735 /* since changing of pause setting doesn't trigger any link
5736 * change event, the driver needs to update the current pause
5737 * result upon successfully return of the phy_cfg command
5739 bp->link_info.pause =
5740 bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl;
5741 bp->link_info.auto_pause_setting = 0;
5742 if (!bp->link_info.force_link_chng)
5743 bnxt_report_link(bp);
5745 bp->link_info.force_link_chng = false;
5746 mutex_unlock(&bp->hwrm_cmd_lock);
5750 static void bnxt_hwrm_set_eee(struct bnxt *bp,
5751 struct hwrm_port_phy_cfg_input *req)
5753 struct ethtool_eee *eee = &bp->eee;
5755 if (eee->eee_enabled) {
5757 u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE;
5759 if (eee->tx_lpi_enabled)
5760 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE;
5762 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE;
5764 req->flags |= cpu_to_le32(flags);
5765 eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised);
5766 req->eee_link_speed_mask = cpu_to_le16(eee_speeds);
5767 req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer);
5769 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE);
5773 int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee)
5775 struct hwrm_port_phy_cfg_input req = {0};
5777 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
5779 bnxt_hwrm_set_pause_common(bp, &req);
5781 bnxt_hwrm_set_link_common(bp, &req);
5784 bnxt_hwrm_set_eee(bp, &req);
5785 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5788 static int bnxt_hwrm_shutdown_link(struct bnxt *bp)
5790 struct hwrm_port_phy_cfg_input req = {0};
5792 if (!BNXT_SINGLE_PF(bp))
5795 if (pci_num_vf(bp->pdev))
5798 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
5799 req.flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN);
5800 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5803 static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp)
5805 struct hwrm_port_led_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
5806 struct hwrm_port_led_qcaps_input req = {0};
5807 struct bnxt_pf_info *pf = &bp->pf;
5810 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601)
5813 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_LED_QCAPS, -1, -1);
5814 req.port_id = cpu_to_le16(pf->port_id);
5815 mutex_lock(&bp->hwrm_cmd_lock);
5816 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
5818 mutex_unlock(&bp->hwrm_cmd_lock);
5821 if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) {
5824 bp->num_leds = resp->num_leds;
5825 memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) *
5827 for (i = 0; i < bp->num_leds; i++) {
5828 struct bnxt_led_info *led = &bp->leds[i];
5829 __le16 caps = led->led_state_caps;
5831 if (!led->led_group_id ||
5832 !BNXT_LED_ALT_BLINK_CAP(caps)) {
5838 mutex_unlock(&bp->hwrm_cmd_lock);
5842 static bool bnxt_eee_config_ok(struct bnxt *bp)
5844 struct ethtool_eee *eee = &bp->eee;
5845 struct bnxt_link_info *link_info = &bp->link_info;
5847 if (!(bp->flags & BNXT_FLAG_EEE_CAP))
5850 if (eee->eee_enabled) {
5852 _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0);
5854 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
5855 eee->eee_enabled = 0;
5858 if (eee->advertised & ~advertising) {
5859 eee->advertised = advertising & eee->supported;
5866 static int bnxt_update_phy_setting(struct bnxt *bp)
5869 bool update_link = false;
5870 bool update_pause = false;
5871 bool update_eee = false;
5872 struct bnxt_link_info *link_info = &bp->link_info;
5874 rc = bnxt_update_link(bp, true);
5876 netdev_err(bp->dev, "failed to update link (rc: %x)\n",
5880 if (!BNXT_SINGLE_PF(bp))
5883 if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
5884 (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) !=
5885 link_info->req_flow_ctrl)
5886 update_pause = true;
5887 if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
5888 link_info->force_pause_setting != link_info->req_flow_ctrl)
5889 update_pause = true;
5890 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
5891 if (BNXT_AUTO_MODE(link_info->auto_mode))
5893 if (link_info->req_link_speed != link_info->force_link_speed)
5895 if (link_info->req_duplex != link_info->duplex_setting)
5898 if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
5900 if (link_info->advertising != link_info->auto_link_speeds)
5904 /* The last close may have shutdown the link, so need to call
5905 * PHY_CFG to bring it back up.
5907 if (!netif_carrier_ok(bp->dev))
5910 if (!bnxt_eee_config_ok(bp))
5914 rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee);
5915 else if (update_pause)
5916 rc = bnxt_hwrm_set_pause(bp);
5918 netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n",
5926 /* Common routine to pre-map certain register block to different GRC window.
5927 * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows
5928 * in PF and 3 windows in VF that can be customized to map in different
5931 static void bnxt_preset_reg_win(struct bnxt *bp)
5934 /* CAG registers map to GRC window #4 */
5935 writel(BNXT_CAG_REG_BASE,
5936 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12);
5940 static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
5944 bnxt_preset_reg_win(bp);
5945 netif_carrier_off(bp->dev);
5947 rc = bnxt_setup_int_mode(bp);
5949 netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n",
5954 if ((bp->flags & BNXT_FLAG_RFS) &&
5955 !(bp->flags & BNXT_FLAG_USING_MSIX)) {
5956 /* disable RFS if falling back to INTA */
5957 bp->dev->hw_features &= ~NETIF_F_NTUPLE;
5958 bp->flags &= ~BNXT_FLAG_RFS;
5961 rc = bnxt_alloc_mem(bp, irq_re_init);
5963 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
5964 goto open_err_free_mem;
5969 rc = bnxt_request_irq(bp);
5971 netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc);
5976 bnxt_enable_napi(bp);
5978 rc = bnxt_init_nic(bp, irq_re_init);
5980 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
5985 rc = bnxt_update_phy_setting(bp);
5987 netdev_warn(bp->dev, "failed to update phy settings\n");
5991 udp_tunnel_get_rx_info(bp->dev);
5993 set_bit(BNXT_STATE_OPEN, &bp->state);
5994 bnxt_enable_int(bp);
5995 /* Enable TX queues */
5997 mod_timer(&bp->timer, jiffies + bp->current_interval);
5998 /* Poll link status and check for SFP+ module status */
5999 bnxt_get_port_module_status(bp);
6004 bnxt_disable_napi(bp);
6010 bnxt_free_mem(bp, true);
6014 /* rtnl_lock held */
6015 int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
6019 rc = __bnxt_open_nic(bp, irq_re_init, link_re_init);
6021 netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc);
6027 static int bnxt_open(struct net_device *dev)
6029 struct bnxt *bp = netdev_priv(dev);
6031 return __bnxt_open_nic(bp, true, true);
6034 int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
6038 #ifdef CONFIG_BNXT_SRIOV
6039 if (bp->sriov_cfg) {
6040 rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait,
6042 BNXT_SRIOV_CFG_WAIT_TMO);
6044 netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n");
6047 /* Change device state to avoid TX queue wake up's */
6048 bnxt_tx_disable(bp);
6050 clear_bit(BNXT_STATE_OPEN, &bp->state);
6051 smp_mb__after_atomic();
6052 while (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state))
6055 /* Flush rings and and disable interrupts */
6056 bnxt_shutdown_nic(bp, irq_re_init);
6058 /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */
6060 bnxt_disable_napi(bp);
6061 del_timer_sync(&bp->timer);
6068 bnxt_free_mem(bp, irq_re_init);
6072 static int bnxt_close(struct net_device *dev)
6074 struct bnxt *bp = netdev_priv(dev);
6076 bnxt_close_nic(bp, true, true);
6077 bnxt_hwrm_shutdown_link(bp);
6081 /* rtnl_lock held */
6082 static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
6088 if (!netif_running(dev))
6095 if (!netif_running(dev))
6108 bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
6111 struct bnxt *bp = netdev_priv(dev);
6116 /* TODO check if we need to synchronize with bnxt_close path */
6117 for (i = 0; i < bp->cp_nr_rings; i++) {
6118 struct bnxt_napi *bnapi = bp->bnapi[i];
6119 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6120 struct ctx_hw_stats *hw_stats = cpr->hw_stats;
6122 stats->rx_packets += le64_to_cpu(hw_stats->rx_ucast_pkts);
6123 stats->rx_packets += le64_to_cpu(hw_stats->rx_mcast_pkts);
6124 stats->rx_packets += le64_to_cpu(hw_stats->rx_bcast_pkts);
6126 stats->tx_packets += le64_to_cpu(hw_stats->tx_ucast_pkts);
6127 stats->tx_packets += le64_to_cpu(hw_stats->tx_mcast_pkts);
6128 stats->tx_packets += le64_to_cpu(hw_stats->tx_bcast_pkts);
6130 stats->rx_bytes += le64_to_cpu(hw_stats->rx_ucast_bytes);
6131 stats->rx_bytes += le64_to_cpu(hw_stats->rx_mcast_bytes);
6132 stats->rx_bytes += le64_to_cpu(hw_stats->rx_bcast_bytes);
6134 stats->tx_bytes += le64_to_cpu(hw_stats->tx_ucast_bytes);
6135 stats->tx_bytes += le64_to_cpu(hw_stats->tx_mcast_bytes);
6136 stats->tx_bytes += le64_to_cpu(hw_stats->tx_bcast_bytes);
6138 stats->rx_missed_errors +=
6139 le64_to_cpu(hw_stats->rx_discard_pkts);
6141 stats->multicast += le64_to_cpu(hw_stats->rx_mcast_pkts);
6143 stats->tx_dropped += le64_to_cpu(hw_stats->tx_drop_pkts);
6146 if (bp->flags & BNXT_FLAG_PORT_STATS) {
6147 struct rx_port_stats *rx = bp->hw_rx_port_stats;
6148 struct tx_port_stats *tx = bp->hw_tx_port_stats;
6150 stats->rx_crc_errors = le64_to_cpu(rx->rx_fcs_err_frames);
6151 stats->rx_frame_errors = le64_to_cpu(rx->rx_align_err_frames);
6152 stats->rx_length_errors = le64_to_cpu(rx->rx_undrsz_frames) +
6153 le64_to_cpu(rx->rx_ovrsz_frames) +
6154 le64_to_cpu(rx->rx_runt_frames);
6155 stats->rx_errors = le64_to_cpu(rx->rx_false_carrier_frames) +
6156 le64_to_cpu(rx->rx_jbr_frames);
6157 stats->collisions = le64_to_cpu(tx->tx_total_collisions);
6158 stats->tx_fifo_errors = le64_to_cpu(tx->tx_fifo_underruns);
6159 stats->tx_errors = le64_to_cpu(tx->tx_err);
6163 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask)
6165 struct net_device *dev = bp->dev;
6166 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
6167 struct netdev_hw_addr *ha;
6170 bool update = false;
6173 netdev_for_each_mc_addr(ha, dev) {
6174 if (mc_count >= BNXT_MAX_MC_ADDRS) {
6175 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
6176 vnic->mc_list_count = 0;
6180 if (!ether_addr_equal(haddr, vnic->mc_list + off)) {
6181 memcpy(vnic->mc_list + off, haddr, ETH_ALEN);
6188 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
6190 if (mc_count != vnic->mc_list_count) {
6191 vnic->mc_list_count = mc_count;
6197 static bool bnxt_uc_list_updated(struct bnxt *bp)
6199 struct net_device *dev = bp->dev;
6200 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
6201 struct netdev_hw_addr *ha;
6204 if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1))
6207 netdev_for_each_uc_addr(ha, dev) {
6208 if (!ether_addr_equal(ha->addr, vnic->uc_list + off))
6216 static void bnxt_set_rx_mode(struct net_device *dev)
6218 struct bnxt *bp = netdev_priv(dev);
6219 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
6220 u32 mask = vnic->rx_mask;
6221 bool mc_update = false;
6224 if (!netif_running(dev))
6227 mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS |
6228 CFA_L2_SET_RX_MASK_REQ_MASK_MCAST |
6229 CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST);
6231 if ((dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp))
6232 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
6234 uc_update = bnxt_uc_list_updated(bp);
6236 if (dev->flags & IFF_ALLMULTI) {
6237 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
6238 vnic->mc_list_count = 0;
6240 mc_update = bnxt_mc_list_updated(bp, &mask);
6243 if (mask != vnic->rx_mask || uc_update || mc_update) {
6244 vnic->rx_mask = mask;
6246 set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
6247 schedule_work(&bp->sp_task);
6251 static int bnxt_cfg_rx_mode(struct bnxt *bp)
6253 struct net_device *dev = bp->dev;
6254 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
6255 struct netdev_hw_addr *ha;
6259 netif_addr_lock_bh(dev);
6260 uc_update = bnxt_uc_list_updated(bp);
6261 netif_addr_unlock_bh(dev);
6266 mutex_lock(&bp->hwrm_cmd_lock);
6267 for (i = 1; i < vnic->uc_filter_count; i++) {
6268 struct hwrm_cfa_l2_filter_free_input req = {0};
6270 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_FREE, -1,
6273 req.l2_filter_id = vnic->fw_l2_filter_id[i];
6275 rc = _hwrm_send_message(bp, &req, sizeof(req),
6278 mutex_unlock(&bp->hwrm_cmd_lock);
6280 vnic->uc_filter_count = 1;
6282 netif_addr_lock_bh(dev);
6283 if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) {
6284 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
6286 netdev_for_each_uc_addr(ha, dev) {
6287 memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN);
6289 vnic->uc_filter_count++;
6292 netif_addr_unlock_bh(dev);
6294 for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) {
6295 rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off);
6297 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n",
6299 vnic->uc_filter_count = i;
6305 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
6307 netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %x\n",
6313 /* If the chip and firmware supports RFS */
6314 static bool bnxt_rfs_supported(struct bnxt *bp)
6316 if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp))
6318 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
6323 /* If runtime conditions support RFS */
6324 static bool bnxt_rfs_capable(struct bnxt *bp)
6326 #ifdef CONFIG_RFS_ACCEL
6327 int vnics, max_vnics, max_rss_ctxs;
6329 if (!(bp->flags & BNXT_FLAG_MSIX_CAP))
6332 vnics = 1 + bp->rx_nr_rings;
6333 max_vnics = bnxt_get_max_func_vnics(bp);
6334 max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp);
6336 /* RSS contexts not a limiting factor */
6337 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
6338 max_rss_ctxs = max_vnics;
6339 if (vnics > max_vnics || vnics > max_rss_ctxs) {
6340 netdev_warn(bp->dev,
6341 "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n",
6342 min(max_rss_ctxs - 1, max_vnics - 1));
6352 static netdev_features_t bnxt_fix_features(struct net_device *dev,
6353 netdev_features_t features)
6355 struct bnxt *bp = netdev_priv(dev);
6357 if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp))
6358 features &= ~NETIF_F_NTUPLE;
6360 /* Both CTAG and STAG VLAN accelaration on the RX side have to be
6361 * turned on or off together.
6363 if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) !=
6364 (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) {
6365 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
6366 features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
6367 NETIF_F_HW_VLAN_STAG_RX);
6369 features |= NETIF_F_HW_VLAN_CTAG_RX |
6370 NETIF_F_HW_VLAN_STAG_RX;
6372 #ifdef CONFIG_BNXT_SRIOV
6375 features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
6376 NETIF_F_HW_VLAN_STAG_RX);
6383 static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
6385 struct bnxt *bp = netdev_priv(dev);
6386 u32 flags = bp->flags;
6389 bool re_init = false;
6390 bool update_tpa = false;
6392 flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS;
6393 if ((features & NETIF_F_GRO) && !BNXT_CHIP_TYPE_NITRO_A0(bp))
6394 flags |= BNXT_FLAG_GRO;
6395 if (features & NETIF_F_LRO)
6396 flags |= BNXT_FLAG_LRO;
6398 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
6399 flags &= ~BNXT_FLAG_TPA;
6401 if (features & NETIF_F_HW_VLAN_CTAG_RX)
6402 flags |= BNXT_FLAG_STRIP_VLAN;
6404 if (features & NETIF_F_NTUPLE)
6405 flags |= BNXT_FLAG_RFS;
6407 changes = flags ^ bp->flags;
6408 if (changes & BNXT_FLAG_TPA) {
6410 if ((bp->flags & BNXT_FLAG_TPA) == 0 ||
6411 (flags & BNXT_FLAG_TPA) == 0)
6415 if (changes & ~BNXT_FLAG_TPA)
6418 if (flags != bp->flags) {
6419 u32 old_flags = bp->flags;
6423 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
6425 bnxt_set_ring_params(bp);
6430 bnxt_close_nic(bp, false, false);
6432 bnxt_set_ring_params(bp);
6434 return bnxt_open_nic(bp, false, false);
6437 rc = bnxt_set_tpa(bp,
6438 (flags & BNXT_FLAG_TPA) ?
6441 bp->flags = old_flags;
6447 static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi)
6449 struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
6450 int i = bnapi->index;
6455 netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n",
6456 i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod,
6460 static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi)
6462 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
6463 int i = bnapi->index;
6468 netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n",
6469 i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod,
6470 rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod,
6471 rxr->rx_sw_agg_prod);
6474 static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi)
6476 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
6477 int i = bnapi->index;
6479 netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n",
6480 i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons);
6483 static void bnxt_dbg_dump_states(struct bnxt *bp)
6486 struct bnxt_napi *bnapi;
6488 for (i = 0; i < bp->cp_nr_rings; i++) {
6489 bnapi = bp->bnapi[i];
6490 if (netif_msg_drv(bp)) {
6491 bnxt_dump_tx_sw_state(bnapi);
6492 bnxt_dump_rx_sw_state(bnapi);
6493 bnxt_dump_cp_sw_state(bnapi);
6498 static void bnxt_reset_task(struct bnxt *bp, bool silent)
6501 bnxt_dbg_dump_states(bp);
6502 if (netif_running(bp->dev)) {
6507 bnxt_close_nic(bp, false, false);
6508 rc = bnxt_open_nic(bp, false, false);
6514 static void bnxt_tx_timeout(struct net_device *dev)
6516 struct bnxt *bp = netdev_priv(dev);
6518 netdev_err(bp->dev, "TX timeout detected, starting reset task!\n");
6519 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
6520 schedule_work(&bp->sp_task);
6523 #ifdef CONFIG_NET_POLL_CONTROLLER
6524 static void bnxt_poll_controller(struct net_device *dev)
6526 struct bnxt *bp = netdev_priv(dev);
6529 for (i = 0; i < bp->cp_nr_rings; i++) {
6530 struct bnxt_irq *irq = &bp->irq_tbl[i];
6532 disable_irq(irq->vector);
6533 irq->handler(irq->vector, bp->bnapi[i]);
6534 enable_irq(irq->vector);
6539 static void bnxt_timer(unsigned long data)
6541 struct bnxt *bp = (struct bnxt *)data;
6542 struct net_device *dev = bp->dev;
6544 if (!netif_running(dev))
6547 if (atomic_read(&bp->intr_sem) != 0)
6548 goto bnxt_restart_timer;
6550 if (bp->link_info.link_up && (bp->flags & BNXT_FLAG_PORT_STATS)) {
6551 set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event);
6552 schedule_work(&bp->sp_task);
6555 mod_timer(&bp->timer, jiffies + bp->current_interval);
6558 static void bnxt_rtnl_lock_sp(struct bnxt *bp)
6560 /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK
6561 * set. If the device is being closed, bnxt_close() may be holding
6562 * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we
6563 * must clear BNXT_STATE_IN_SP_TASK before holding rtnl().
6565 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
6569 static void bnxt_rtnl_unlock_sp(struct bnxt *bp)
6571 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
6575 /* Only called from bnxt_sp_task() */
6576 static void bnxt_reset(struct bnxt *bp, bool silent)
6578 bnxt_rtnl_lock_sp(bp);
6579 if (test_bit(BNXT_STATE_OPEN, &bp->state))
6580 bnxt_reset_task(bp, silent);
6581 bnxt_rtnl_unlock_sp(bp);
6584 static void bnxt_cfg_ntp_filters(struct bnxt *);
6586 static void bnxt_sp_task(struct work_struct *work)
6588 struct bnxt *bp = container_of(work, struct bnxt, sp_task);
6590 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
6591 smp_mb__after_atomic();
6592 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
6593 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
6597 if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event))
6598 bnxt_cfg_rx_mode(bp);
6600 if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event))
6601 bnxt_cfg_ntp_filters(bp);
6602 if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
6603 bnxt_hwrm_exec_fwd_req(bp);
6604 if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) {
6605 bnxt_hwrm_tunnel_dst_port_alloc(
6607 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
6609 if (test_and_clear_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event)) {
6610 bnxt_hwrm_tunnel_dst_port_free(
6611 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
6613 if (test_and_clear_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event)) {
6614 bnxt_hwrm_tunnel_dst_port_alloc(
6616 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
6618 if (test_and_clear_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event)) {
6619 bnxt_hwrm_tunnel_dst_port_free(
6620 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
6622 if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event))
6623 bnxt_hwrm_port_qstats(bp);
6625 /* These functions below will clear BNXT_STATE_IN_SP_TASK. They
6626 * must be the last functions to be called before exiting.
6628 if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
6631 if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT,
6633 bnxt_hwrm_phy_qcaps(bp);
6635 bnxt_rtnl_lock_sp(bp);
6636 if (test_bit(BNXT_STATE_OPEN, &bp->state))
6637 rc = bnxt_update_link(bp, true);
6638 bnxt_rtnl_unlock_sp(bp);
6640 netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
6643 if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) {
6644 bnxt_rtnl_lock_sp(bp);
6645 if (test_bit(BNXT_STATE_OPEN, &bp->state))
6646 bnxt_get_port_module_status(bp);
6647 bnxt_rtnl_unlock_sp(bp);
6649 if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event))
6650 bnxt_reset(bp, false);
6652 if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event))
6653 bnxt_reset(bp, true);
6655 smp_mb__before_atomic();
6656 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
6659 /* Under rtnl_lock */
6660 int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp)
6662 int max_rx, max_tx, tx_sets = 1;
6663 int tx_rings_needed;
6667 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
6673 rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh);
6680 tx_rings_needed = tx * tx_sets + tx_xdp;
6681 if (max_tx < tx_rings_needed)
6684 if (bnxt_hwrm_reserve_tx_rings(bp, &tx_rings_needed) ||
6685 tx_rings_needed < (tx * tx_sets + tx_xdp))
6690 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)
6693 pci_iounmap(pdev, bp->bar2);
6698 pci_iounmap(pdev, bp->bar1);
6703 pci_iounmap(pdev, bp->bar0);
6708 static void bnxt_cleanup_pci(struct bnxt *bp)
6710 bnxt_unmap_bars(bp, bp->pdev);
6711 pci_release_regions(bp->pdev);
6712 pci_disable_device(bp->pdev);
6715 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
6718 struct bnxt *bp = netdev_priv(dev);
6720 SET_NETDEV_DEV(dev, &pdev->dev);
6722 /* enable device (incl. PCI PM wakeup), and bus-mastering */
6723 rc = pci_enable_device(pdev);
6725 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
6729 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
6731 "Cannot find PCI device base address, aborting\n");
6733 goto init_err_disable;
6736 rc = pci_request_regions(pdev, DRV_MODULE_NAME);
6738 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
6739 goto init_err_disable;
6742 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 &&
6743 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
6744 dev_err(&pdev->dev, "System does not support DMA, aborting\n");
6745 goto init_err_disable;
6748 pci_set_master(pdev);
6753 bp->bar0 = pci_ioremap_bar(pdev, 0);
6755 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
6757 goto init_err_release;
6760 bp->bar1 = pci_ioremap_bar(pdev, 2);
6762 dev_err(&pdev->dev, "Cannot map doorbell registers, aborting\n");
6764 goto init_err_release;
6767 bp->bar2 = pci_ioremap_bar(pdev, 4);
6769 dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n");
6771 goto init_err_release;
6774 pci_enable_pcie_error_reporting(pdev);
6776 INIT_WORK(&bp->sp_task, bnxt_sp_task);
6778 spin_lock_init(&bp->ntp_fltr_lock);
6780 bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE;
6781 bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE;
6783 /* tick values in micro seconds */
6784 bp->rx_coal_ticks = 12;
6785 bp->rx_coal_bufs = 30;
6786 bp->rx_coal_ticks_irq = 1;
6787 bp->rx_coal_bufs_irq = 2;
6789 bp->tx_coal_ticks = 25;
6790 bp->tx_coal_bufs = 30;
6791 bp->tx_coal_ticks_irq = 2;
6792 bp->tx_coal_bufs_irq = 2;
6794 bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS;
6796 init_timer(&bp->timer);
6797 bp->timer.data = (unsigned long)bp;
6798 bp->timer.function = bnxt_timer;
6799 bp->current_interval = BNXT_TIMER_INTERVAL;
6801 clear_bit(BNXT_STATE_OPEN, &bp->state);
6805 bnxt_unmap_bars(bp, pdev);
6806 pci_release_regions(pdev);
6809 pci_disable_device(pdev);
6815 /* rtnl_lock held */
6816 static int bnxt_change_mac_addr(struct net_device *dev, void *p)
6818 struct sockaddr *addr = p;
6819 struct bnxt *bp = netdev_priv(dev);
6822 if (!is_valid_ether_addr(addr->sa_data))
6823 return -EADDRNOTAVAIL;
6825 rc = bnxt_approve_mac(bp, addr->sa_data);
6829 if (ether_addr_equal(addr->sa_data, dev->dev_addr))
6832 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
6833 if (netif_running(dev)) {
6834 bnxt_close_nic(bp, false, false);
6835 rc = bnxt_open_nic(bp, false, false);
6841 /* rtnl_lock held */
6842 static int bnxt_change_mtu(struct net_device *dev, int new_mtu)
6844 struct bnxt *bp = netdev_priv(dev);
6846 if (netif_running(dev))
6847 bnxt_close_nic(bp, false, false);
6850 bnxt_set_ring_params(bp);
6852 if (netif_running(dev))
6853 return bnxt_open_nic(bp, false, false);
6858 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc)
6860 struct bnxt *bp = netdev_priv(dev);
6864 if (tc > bp->max_tc) {
6865 netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n",
6870 if (netdev_get_num_tc(dev) == tc)
6873 if (bp->flags & BNXT_FLAG_SHARED_RINGS)
6876 rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
6877 tc, bp->tx_nr_rings_xdp);
6881 /* Needs to close the device and do hw resource re-allocations */
6882 if (netif_running(bp->dev))
6883 bnxt_close_nic(bp, true, false);
6886 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc;
6887 netdev_set_num_tc(dev, tc);
6889 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
6890 netdev_reset_tc(dev);
6892 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
6893 bp->tx_nr_rings + bp->rx_nr_rings;
6894 bp->num_stat_ctxs = bp->cp_nr_rings;
6896 if (netif_running(bp->dev))
6897 return bnxt_open_nic(bp, true, false);
6902 static int bnxt_setup_tc(struct net_device *dev, u32 handle, __be16 proto,
6903 struct tc_to_netdev *ntc)
6905 if (ntc->type != TC_SETUP_MQPRIO)
6908 return bnxt_setup_mq_tc(dev, ntc->tc);
6911 #ifdef CONFIG_RFS_ACCEL
6912 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
6913 struct bnxt_ntuple_filter *f2)
6915 struct flow_keys *keys1 = &f1->fkeys;
6916 struct flow_keys *keys2 = &f2->fkeys;
6918 if (keys1->addrs.v4addrs.src == keys2->addrs.v4addrs.src &&
6919 keys1->addrs.v4addrs.dst == keys2->addrs.v4addrs.dst &&
6920 keys1->ports.ports == keys2->ports.ports &&
6921 keys1->basic.ip_proto == keys2->basic.ip_proto &&
6922 keys1->basic.n_proto == keys2->basic.n_proto &&
6923 keys1->control.flags == keys2->control.flags &&
6924 ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) &&
6925 ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr))
6931 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
6932 u16 rxq_index, u32 flow_id)
6934 struct bnxt *bp = netdev_priv(dev);
6935 struct bnxt_ntuple_filter *fltr, *new_fltr;
6936 struct flow_keys *fkeys;
6937 struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb);
6938 int rc = 0, idx, bit_id, l2_idx = 0;
6939 struct hlist_head *head;
6941 if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) {
6942 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
6945 netif_addr_lock_bh(dev);
6946 for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) {
6947 if (ether_addr_equal(eth->h_dest,
6948 vnic->uc_list + off)) {
6953 netif_addr_unlock_bh(dev);
6957 new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC);
6961 fkeys = &new_fltr->fkeys;
6962 if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) {
6963 rc = -EPROTONOSUPPORT;
6967 if ((fkeys->basic.n_proto != htons(ETH_P_IP) &&
6968 fkeys->basic.n_proto != htons(ETH_P_IPV6)) ||
6969 ((fkeys->basic.ip_proto != IPPROTO_TCP) &&
6970 (fkeys->basic.ip_proto != IPPROTO_UDP))) {
6971 rc = -EPROTONOSUPPORT;
6974 if (fkeys->basic.n_proto == htons(ETH_P_IPV6) &&
6975 bp->hwrm_spec_code < 0x10601) {
6976 rc = -EPROTONOSUPPORT;
6979 if ((fkeys->control.flags & FLOW_DIS_ENCAPSULATION) &&
6980 bp->hwrm_spec_code < 0x10601) {
6981 rc = -EPROTONOSUPPORT;
6985 memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN);
6986 memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN);
6988 idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK;
6989 head = &bp->ntp_fltr_hash_tbl[idx];
6991 hlist_for_each_entry_rcu(fltr, head, hash) {
6992 if (bnxt_fltr_match(fltr, new_fltr)) {
7000 spin_lock_bh(&bp->ntp_fltr_lock);
7001 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap,
7002 BNXT_NTP_FLTR_MAX_FLTR, 0);
7004 spin_unlock_bh(&bp->ntp_fltr_lock);
7009 new_fltr->sw_id = (u16)bit_id;
7010 new_fltr->flow_id = flow_id;
7011 new_fltr->l2_fltr_idx = l2_idx;
7012 new_fltr->rxq = rxq_index;
7013 hlist_add_head_rcu(&new_fltr->hash, head);
7014 bp->ntp_fltr_count++;
7015 spin_unlock_bh(&bp->ntp_fltr_lock);
7017 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
7018 schedule_work(&bp->sp_task);
7020 return new_fltr->sw_id;
7027 static void bnxt_cfg_ntp_filters(struct bnxt *bp)
7031 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
7032 struct hlist_head *head;
7033 struct hlist_node *tmp;
7034 struct bnxt_ntuple_filter *fltr;
7037 head = &bp->ntp_fltr_hash_tbl[i];
7038 hlist_for_each_entry_safe(fltr, tmp, head, hash) {
7041 if (test_bit(BNXT_FLTR_VALID, &fltr->state)) {
7042 if (rps_may_expire_flow(bp->dev, fltr->rxq,
7045 bnxt_hwrm_cfa_ntuple_filter_free(bp,
7050 rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp,
7055 set_bit(BNXT_FLTR_VALID, &fltr->state);
7059 spin_lock_bh(&bp->ntp_fltr_lock);
7060 hlist_del_rcu(&fltr->hash);
7061 bp->ntp_fltr_count--;
7062 spin_unlock_bh(&bp->ntp_fltr_lock);
7064 clear_bit(fltr->sw_id, bp->ntp_fltr_bmap);
7069 if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event))
7070 netdev_info(bp->dev, "Receive PF driver unload event!");
7075 static void bnxt_cfg_ntp_filters(struct bnxt *bp)
7079 #endif /* CONFIG_RFS_ACCEL */
7081 static void bnxt_udp_tunnel_add(struct net_device *dev,
7082 struct udp_tunnel_info *ti)
7084 struct bnxt *bp = netdev_priv(dev);
7086 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
7089 if (!netif_running(dev))
7093 case UDP_TUNNEL_TYPE_VXLAN:
7094 if (bp->vxlan_port_cnt && bp->vxlan_port != ti->port)
7097 bp->vxlan_port_cnt++;
7098 if (bp->vxlan_port_cnt == 1) {
7099 bp->vxlan_port = ti->port;
7100 set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event);
7101 schedule_work(&bp->sp_task);
7104 case UDP_TUNNEL_TYPE_GENEVE:
7105 if (bp->nge_port_cnt && bp->nge_port != ti->port)
7109 if (bp->nge_port_cnt == 1) {
7110 bp->nge_port = ti->port;
7111 set_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event);
7118 schedule_work(&bp->sp_task);
7121 static void bnxt_udp_tunnel_del(struct net_device *dev,
7122 struct udp_tunnel_info *ti)
7124 struct bnxt *bp = netdev_priv(dev);
7126 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET)
7129 if (!netif_running(dev))
7133 case UDP_TUNNEL_TYPE_VXLAN:
7134 if (!bp->vxlan_port_cnt || bp->vxlan_port != ti->port)
7136 bp->vxlan_port_cnt--;
7138 if (bp->vxlan_port_cnt != 0)
7141 set_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event);
7143 case UDP_TUNNEL_TYPE_GENEVE:
7144 if (!bp->nge_port_cnt || bp->nge_port != ti->port)
7148 if (bp->nge_port_cnt != 0)
7151 set_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event);
7157 schedule_work(&bp->sp_task);
7160 static const struct net_device_ops bnxt_netdev_ops = {
7161 .ndo_open = bnxt_open,
7162 .ndo_start_xmit = bnxt_start_xmit,
7163 .ndo_stop = bnxt_close,
7164 .ndo_get_stats64 = bnxt_get_stats64,
7165 .ndo_set_rx_mode = bnxt_set_rx_mode,
7166 .ndo_do_ioctl = bnxt_ioctl,
7167 .ndo_validate_addr = eth_validate_addr,
7168 .ndo_set_mac_address = bnxt_change_mac_addr,
7169 .ndo_change_mtu = bnxt_change_mtu,
7170 .ndo_fix_features = bnxt_fix_features,
7171 .ndo_set_features = bnxt_set_features,
7172 .ndo_tx_timeout = bnxt_tx_timeout,
7173 #ifdef CONFIG_BNXT_SRIOV
7174 .ndo_get_vf_config = bnxt_get_vf_config,
7175 .ndo_set_vf_mac = bnxt_set_vf_mac,
7176 .ndo_set_vf_vlan = bnxt_set_vf_vlan,
7177 .ndo_set_vf_rate = bnxt_set_vf_bw,
7178 .ndo_set_vf_link_state = bnxt_set_vf_link_state,
7179 .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk,
7181 #ifdef CONFIG_NET_POLL_CONTROLLER
7182 .ndo_poll_controller = bnxt_poll_controller,
7184 .ndo_setup_tc = bnxt_setup_tc,
7185 #ifdef CONFIG_RFS_ACCEL
7186 .ndo_rx_flow_steer = bnxt_rx_flow_steer,
7188 .ndo_udp_tunnel_add = bnxt_udp_tunnel_add,
7189 .ndo_udp_tunnel_del = bnxt_udp_tunnel_del,
7190 .ndo_xdp = bnxt_xdp,
7193 static void bnxt_remove_one(struct pci_dev *pdev)
7195 struct net_device *dev = pci_get_drvdata(pdev);
7196 struct bnxt *bp = netdev_priv(dev);
7199 bnxt_sriov_disable(bp);
7201 pci_disable_pcie_error_reporting(pdev);
7202 unregister_netdev(dev);
7203 cancel_work_sync(&bp->sp_task);
7206 bnxt_clear_int_mode(bp);
7207 bnxt_hwrm_func_drv_unrgtr(bp);
7208 bnxt_free_hwrm_resources(bp);
7213 bpf_prog_put(bp->xdp_prog);
7214 bnxt_cleanup_pci(bp);
7218 static int bnxt_probe_phy(struct bnxt *bp)
7221 struct bnxt_link_info *link_info = &bp->link_info;
7223 rc = bnxt_hwrm_phy_qcaps(bp);
7225 netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n",
7230 rc = bnxt_update_link(bp, false);
7232 netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n",
7237 /* Older firmware does not have supported_auto_speeds, so assume
7238 * that all supported speeds can be autonegotiated.
7240 if (link_info->auto_link_speeds && !link_info->support_auto_speeds)
7241 link_info->support_auto_speeds = link_info->support_speeds;
7243 /*initialize the ethool setting copy with NVM settings */
7244 if (BNXT_AUTO_MODE(link_info->auto_mode)) {
7245 link_info->autoneg = BNXT_AUTONEG_SPEED;
7246 if (bp->hwrm_spec_code >= 0x10201) {
7247 if (link_info->auto_pause_setting &
7248 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE)
7249 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
7251 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
7253 link_info->advertising = link_info->auto_link_speeds;
7255 link_info->req_link_speed = link_info->force_link_speed;
7256 link_info->req_duplex = link_info->duplex_setting;
7258 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
7259 link_info->req_flow_ctrl =
7260 link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH;
7262 link_info->req_flow_ctrl = link_info->force_pause_setting;
7266 static int bnxt_get_max_irq(struct pci_dev *pdev)
7270 if (!pdev->msix_cap)
7273 pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
7274 return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
7277 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx,
7280 int max_ring_grps = 0;
7282 #ifdef CONFIG_BNXT_SRIOV
7284 *max_tx = bp->vf.max_tx_rings;
7285 *max_rx = bp->vf.max_rx_rings;
7286 *max_cp = min_t(int, bp->vf.max_irqs, bp->vf.max_cp_rings);
7287 *max_cp = min_t(int, *max_cp, bp->vf.max_stat_ctxs);
7288 max_ring_grps = bp->vf.max_hw_ring_grps;
7292 *max_tx = bp->pf.max_tx_rings;
7293 *max_rx = bp->pf.max_rx_rings;
7294 *max_cp = min_t(int, bp->pf.max_irqs, bp->pf.max_cp_rings);
7295 *max_cp = min_t(int, *max_cp, bp->pf.max_stat_ctxs);
7296 max_ring_grps = bp->pf.max_hw_ring_grps;
7298 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) {
7302 if (bp->flags & BNXT_FLAG_AGG_RINGS)
7304 *max_rx = min_t(int, *max_rx, max_ring_grps);
7307 int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared)
7311 _bnxt_get_max_rings(bp, &rx, &tx, &cp);
7312 if (!rx || !tx || !cp)
7317 return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared);
7320 static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx,
7325 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
7326 if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) {
7327 /* Not enough rings, try disabling agg rings. */
7328 bp->flags &= ~BNXT_FLAG_AGG_RINGS;
7329 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
7332 bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
7333 bp->dev->hw_features &= ~NETIF_F_LRO;
7334 bp->dev->features &= ~NETIF_F_LRO;
7335 bnxt_set_ring_params(bp);
7338 if (bp->flags & BNXT_FLAG_ROCE_CAP) {
7339 int max_cp, max_stat, max_irq;
7341 /* Reserve minimum resources for RoCE */
7342 max_cp = bnxt_get_max_func_cp_rings(bp);
7343 max_stat = bnxt_get_max_func_stat_ctxs(bp);
7344 max_irq = bnxt_get_max_func_irqs(bp);
7345 if (max_cp <= BNXT_MIN_ROCE_CP_RINGS ||
7346 max_irq <= BNXT_MIN_ROCE_CP_RINGS ||
7347 max_stat <= BNXT_MIN_ROCE_STAT_CTXS)
7350 max_cp -= BNXT_MIN_ROCE_CP_RINGS;
7351 max_irq -= BNXT_MIN_ROCE_CP_RINGS;
7352 max_stat -= BNXT_MIN_ROCE_STAT_CTXS;
7353 max_cp = min_t(int, max_cp, max_irq);
7354 max_cp = min_t(int, max_cp, max_stat);
7355 rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared);
7362 static int bnxt_set_dflt_rings(struct bnxt *bp)
7364 int dflt_rings, max_rx_rings, max_tx_rings, rc;
7368 bp->flags |= BNXT_FLAG_SHARED_RINGS;
7369 dflt_rings = netif_get_num_default_rss_queues();
7370 rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh);
7373 bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings);
7374 bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings);
7376 rc = bnxt_hwrm_reserve_tx_rings(bp, &bp->tx_nr_rings_per_tc);
7378 netdev_warn(bp->dev, "Unable to reserve tx rings\n");
7380 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
7381 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
7382 bp->tx_nr_rings + bp->rx_nr_rings;
7383 bp->num_stat_ctxs = bp->cp_nr_rings;
7384 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
7391 void bnxt_restore_pf_fw_resources(struct bnxt *bp)
7394 bnxt_hwrm_func_qcaps(bp);
7395 bnxt_subtract_ulp_resources(bp, BNXT_ROCE_ULP);
7398 static void bnxt_parse_log_pcie_link(struct bnxt *bp)
7400 enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN;
7401 enum pci_bus_speed speed = PCI_SPEED_UNKNOWN;
7403 if (pcie_get_minimum_link(bp->pdev, &speed, &width) ||
7404 speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)
7405 netdev_info(bp->dev, "Failed to determine PCIe Link Info\n");
7407 netdev_info(bp->dev, "PCIe: Speed %s Width x%d\n",
7408 speed == PCIE_SPEED_2_5GT ? "2.5GT/s" :
7409 speed == PCIE_SPEED_5_0GT ? "5.0GT/s" :
7410 speed == PCIE_SPEED_8_0GT ? "8.0GT/s" :
7414 static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
7416 static int version_printed;
7417 struct net_device *dev;
7421 if (pci_is_bridge(pdev))
7424 if (version_printed++ == 0)
7425 pr_info("%s", version);
7427 max_irqs = bnxt_get_max_irq(pdev);
7428 dev = alloc_etherdev_mq(sizeof(*bp), max_irqs);
7432 bp = netdev_priv(dev);
7434 if (bnxt_vf_pciid(ent->driver_data))
7435 bp->flags |= BNXT_FLAG_VF;
7438 bp->flags |= BNXT_FLAG_MSIX_CAP;
7440 rc = bnxt_init_board(pdev, dev);
7444 dev->netdev_ops = &bnxt_netdev_ops;
7445 dev->watchdog_timeo = BNXT_TX_TIMEOUT;
7446 dev->ethtool_ops = &bnxt_ethtool_ops;
7447 pci_set_drvdata(pdev, dev);
7449 rc = bnxt_alloc_hwrm_resources(bp);
7451 goto init_err_pci_clean;
7453 mutex_init(&bp->hwrm_cmd_lock);
7454 rc = bnxt_hwrm_ver_get(bp);
7456 goto init_err_pci_clean;
7458 rc = bnxt_hwrm_func_reset(bp);
7460 goto init_err_pci_clean;
7462 bnxt_hwrm_fw_set_time(bp);
7464 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
7465 NETIF_F_TSO | NETIF_F_TSO6 |
7466 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
7467 NETIF_F_GSO_IPXIP4 |
7468 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
7469 NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH |
7470 NETIF_F_RXCSUM | NETIF_F_GRO;
7472 if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
7473 dev->hw_features |= NETIF_F_LRO;
7475 dev->hw_enc_features =
7476 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
7477 NETIF_F_TSO | NETIF_F_TSO6 |
7478 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
7479 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
7480 NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL;
7481 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM |
7482 NETIF_F_GSO_GRE_CSUM;
7483 dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
7484 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX |
7485 NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX;
7486 dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
7487 dev->priv_flags |= IFF_UNICAST_FLT;
7489 /* MTU range: 60 - 9500 */
7490 dev->min_mtu = ETH_ZLEN;
7491 dev->max_mtu = BNXT_MAX_MTU;
7495 #ifdef CONFIG_BNXT_SRIOV
7496 init_waitqueue_head(&bp->sriov_cfg_wait);
7498 bp->gro_func = bnxt_gro_func_5730x;
7499 if (BNXT_CHIP_NUM_57X1X(bp->chip_num))
7500 bp->gro_func = bnxt_gro_func_5731x;
7502 rc = bnxt_hwrm_func_drv_rgtr(bp);
7504 goto init_err_pci_clean;
7506 rc = bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0);
7508 goto init_err_pci_clean;
7510 bp->ulp_probe = bnxt_ulp_probe;
7512 /* Get the MAX capabilities for this function */
7513 rc = bnxt_hwrm_func_qcaps(bp);
7515 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
7518 goto init_err_pci_clean;
7521 rc = bnxt_hwrm_queue_qportcfg(bp);
7523 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %x\n",
7526 goto init_err_pci_clean;
7529 bnxt_hwrm_func_qcfg(bp);
7530 bnxt_hwrm_port_led_qcaps(bp);
7532 bnxt_set_rx_skb_mode(bp, false);
7533 bnxt_set_tpa_flags(bp);
7534 bnxt_set_ring_params(bp);
7535 bnxt_set_max_func_irqs(bp, max_irqs);
7536 rc = bnxt_set_dflt_rings(bp);
7538 netdev_err(bp->dev, "Not enough rings available.\n");
7540 goto init_err_pci_clean;
7543 /* Default RSS hash cfg. */
7544 bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 |
7545 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 |
7546 VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 |
7547 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6;
7548 if (!BNXT_CHIP_NUM_57X0X(bp->chip_num) &&
7549 !BNXT_CHIP_TYPE_NITRO_A0(bp) &&
7550 bp->hwrm_spec_code >= 0x10501) {
7551 bp->flags |= BNXT_FLAG_UDP_RSS_CAP;
7552 bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 |
7553 VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6;
7556 bnxt_hwrm_vnic_qcaps(bp);
7557 if (bnxt_rfs_supported(bp)) {
7558 dev->hw_features |= NETIF_F_NTUPLE;
7559 if (bnxt_rfs_capable(bp)) {
7560 bp->flags |= BNXT_FLAG_RFS;
7561 dev->features |= NETIF_F_NTUPLE;
7565 if (dev->hw_features & NETIF_F_HW_VLAN_CTAG_RX)
7566 bp->flags |= BNXT_FLAG_STRIP_VLAN;
7568 rc = bnxt_probe_phy(bp);
7570 goto init_err_pci_clean;
7572 rc = bnxt_init_int_mode(bp);
7574 goto init_err_pci_clean;
7576 rc = register_netdev(dev);
7578 goto init_err_clr_int;
7580 netdev_info(dev, "%s found at mem %lx, node addr %pM\n",
7581 board_info[ent->driver_data].name,
7582 (long)pci_resource_start(pdev, 0), dev->dev_addr);
7584 bnxt_parse_log_pcie_link(bp);
7589 bnxt_clear_int_mode(bp);
7592 bnxt_cleanup_pci(bp);
7600 * bnxt_io_error_detected - called when PCI error is detected
7601 * @pdev: Pointer to PCI device
7602 * @state: The current pci connection state
7604 * This function is called after a PCI bus error affecting
7605 * this device has been detected.
7607 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
7608 pci_channel_state_t state)
7610 struct net_device *netdev = pci_get_drvdata(pdev);
7611 struct bnxt *bp = netdev_priv(netdev);
7613 netdev_info(netdev, "PCI I/O error detected\n");
7616 netif_device_detach(netdev);
7620 if (state == pci_channel_io_perm_failure) {
7622 return PCI_ERS_RESULT_DISCONNECT;
7625 if (netif_running(netdev))
7628 pci_disable_device(pdev);
7631 /* Request a slot slot reset. */
7632 return PCI_ERS_RESULT_NEED_RESET;
7636 * bnxt_io_slot_reset - called after the pci bus has been reset.
7637 * @pdev: Pointer to PCI device
7639 * Restart the card from scratch, as if from a cold-boot.
7640 * At this point, the card has exprienced a hard reset,
7641 * followed by fixups by BIOS, and has its config space
7642 * set up identically to what it was at cold boot.
7644 static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
7646 struct net_device *netdev = pci_get_drvdata(pdev);
7647 struct bnxt *bp = netdev_priv(netdev);
7649 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
7651 netdev_info(bp->dev, "PCI Slot Reset\n");
7655 if (pci_enable_device(pdev)) {
7657 "Cannot re-enable PCI device after reset.\n");
7659 pci_set_master(pdev);
7661 err = bnxt_hwrm_func_reset(bp);
7662 if (!err && netif_running(netdev))
7663 err = bnxt_open(netdev);
7666 result = PCI_ERS_RESULT_RECOVERED;
7671 if (result != PCI_ERS_RESULT_RECOVERED && netif_running(netdev))
7676 err = pci_cleanup_aer_uncorrect_error_status(pdev);
7679 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
7680 err); /* non-fatal, continue */
7683 return PCI_ERS_RESULT_RECOVERED;
7687 * bnxt_io_resume - called when traffic can start flowing again.
7688 * @pdev: Pointer to PCI device
7690 * This callback is called when the error recovery driver tells
7691 * us that its OK to resume normal operation.
7693 static void bnxt_io_resume(struct pci_dev *pdev)
7695 struct net_device *netdev = pci_get_drvdata(pdev);
7699 netif_device_attach(netdev);
7704 static const struct pci_error_handlers bnxt_err_handler = {
7705 .error_detected = bnxt_io_error_detected,
7706 .slot_reset = bnxt_io_slot_reset,
7707 .resume = bnxt_io_resume
7710 static struct pci_driver bnxt_pci_driver = {
7711 .name = DRV_MODULE_NAME,
7712 .id_table = bnxt_pci_tbl,
7713 .probe = bnxt_init_one,
7714 .remove = bnxt_remove_one,
7715 .err_handler = &bnxt_err_handler,
7716 #if defined(CONFIG_BNXT_SRIOV)
7717 .sriov_configure = bnxt_sriov_configure,
7721 module_pci_driver(bnxt_pci_driver);