1 /* QLogic qed NIC Driver
3 * Copyright (c) 2015 QLogic Corporation
5 * This software is available under the terms of the GNU General Public License
6 * (GPL) Version 2, available from the file COPYING in the main directory of
13 #include <linux/types.h>
14 #include <linux/interrupt.h>
15 #include <linux/netdevice.h>
16 #include <linux/pci.h>
17 #include <linux/skbuff.h>
18 #include <linux/types.h>
19 #include <asm/byteorder.h>
21 #include <linux/compiler.h>
22 #include <linux/kernel.h>
23 #include <linux/list.h>
24 #include <linux/slab.h>
25 #include <linux/qed/common_hsi.h>
26 #include <linux/qed/qed_chain.h>
28 enum dcbx_protocol_type {
32 DCBX_PROTOCOL_ROCE_V2,
34 DCBX_MAX_PROTOCOL_TYPE
38 #define QED_LLDP_CHASSIS_ID_STAT_LEN 4
39 #define QED_LLDP_PORT_ID_STAT_LEN 4
40 #define QED_DCBX_MAX_APP_PROTOCOL 32
41 #define QED_MAX_PFC_PRIORITIES 8
42 #define QED_DCBX_DSCP_SIZE 64
44 struct qed_dcbx_lldp_remote {
45 u32 peer_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
46 u32 peer_port_id[QED_LLDP_PORT_ID_STAT_LEN];
53 struct qed_dcbx_lldp_local {
54 u32 local_chassis_id[QED_LLDP_CHASSIS_ID_STAT_LEN];
55 u32 local_port_id[QED_LLDP_PORT_ID_STAT_LEN];
58 struct qed_dcbx_app_prio {
66 struct qed_dbcx_pfc_params {
69 u8 prio[QED_MAX_PFC_PRIORITIES];
73 enum qed_dcbx_sf_ieee_type {
74 QED_DCBX_SF_IEEE_ETHTYPE,
75 QED_DCBX_SF_IEEE_TCP_PORT,
76 QED_DCBX_SF_IEEE_UDP_PORT,
77 QED_DCBX_SF_IEEE_TCP_UDP_PORT
80 struct qed_app_entry {
82 enum qed_dcbx_sf_ieee_type sf_ieee;
86 enum dcbx_protocol_type proto_type;
89 struct qed_dcbx_params {
90 struct qed_app_entry app_entry[QED_DCBX_MAX_APP_PROTOCOL];
99 u8 ets_pri_tc_tbl[QED_MAX_PFC_PRIORITIES];
100 u8 ets_tc_bw_tbl[QED_MAX_PFC_PRIORITIES];
101 u8 ets_tc_tsa_tbl[QED_MAX_PFC_PRIORITIES];
102 struct qed_dbcx_pfc_params pfc;
106 struct qed_dcbx_admin_params {
107 struct qed_dcbx_params params;
111 struct qed_dcbx_remote_params {
112 struct qed_dcbx_params params;
116 struct qed_dcbx_operational_params {
117 struct qed_dcbx_app_prio app_prio;
118 struct qed_dcbx_params params;
126 struct qed_dcbx_get {
127 struct qed_dcbx_operational_params operational;
128 struct qed_dcbx_lldp_remote lldp_remote;
129 struct qed_dcbx_lldp_local lldp_local;
130 struct qed_dcbx_remote_params remote;
131 struct qed_dcbx_admin_params local;
141 #define DIRECT_REG_WR(reg_addr, val) writel((u32)val, \
142 (void __iomem *)(reg_addr))
144 #define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr))
146 #define QED_COALESCE_MAX 0xFF
151 struct qed_eth_pf_params {
152 /* The following parameters are used during HW-init
153 * and these parameters need to be passed as arguments
154 * to update_pf_params routine invoked before slowpath start
159 /* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
160 struct qed_iscsi_pf_params {
161 u64 glbl_q_params_addr;
162 u64 bdq_pbl_base_addr[2];
165 u16 cmdq_num_entries;
166 u16 dup_ack_threshold;
172 /* The following parameters are used during HW-init
173 * and these parameters need to be passed as arguments
174 * to update_pf_params routine invoked before slowpath start
179 /* The following parameters are used during protocol-init */
180 u16 half_way_close_timeout;
181 u16 bdq_xoff_threshold[2];
182 u16 bdq_xon_threshold[2];
183 u16 cmdq_xoff_threshold;
184 u16 cmdq_xon_threshold;
187 u8 num_sq_pages_in_ring;
188 u8 num_r2tq_pages_in_ring;
189 u8 num_uhq_pages_in_ring;
201 u8 bdq_pbl_num_entries[2];
204 struct qed_rdma_pf_params {
205 /* Supplied to QED during resource allocation (may affect the ILT and
208 u32 min_dpis; /* number of requested DPIs */
209 u32 num_mrs; /* number of requested memory regions */
210 u32 num_qps; /* number of requested Queue Pairs */
211 u32 num_srqs; /* number of requested SRQ */
212 u8 roce_edpm_mode; /* see QED_ROCE_EDPM_MODE_ENABLE */
213 u8 gl_pi; /* protocol index */
215 /* Will allocate rate limiters to be used with QPs */
219 struct qed_pf_params {
220 struct qed_eth_pf_params eth_pf_params;
221 struct qed_iscsi_pf_params iscsi_pf_params;
222 struct qed_rdma_pf_params rdma_pf_params;
233 struct status_block *sb_virt;
235 u32 sb_ack; /* Last given ack */
237 void __iomem *igu_addr;
239 #define QED_SB_INFO_INIT 0x1
240 #define QED_SB_INFO_SETUP 0x2
242 struct qed_dev *cdev;
245 struct qed_dev_info {
246 unsigned long pci_mem_start;
247 unsigned long pci_mem_end;
248 unsigned int pci_irq;
270 QED_SB_TYPE_L2_QUEUE,
278 enum qed_link_mode_bits {
279 QED_LM_FIBRE_BIT = BIT(0),
280 QED_LM_Autoneg_BIT = BIT(1),
281 QED_LM_Asym_Pause_BIT = BIT(2),
282 QED_LM_Pause_BIT = BIT(3),
283 QED_LM_1000baseT_Half_BIT = BIT(4),
284 QED_LM_1000baseT_Full_BIT = BIT(5),
285 QED_LM_10000baseKR_Full_BIT = BIT(6),
286 QED_LM_25000baseKR_Full_BIT = BIT(7),
287 QED_LM_40000baseLR4_Full_BIT = BIT(8),
288 QED_LM_50000baseKR2_Full_BIT = BIT(9),
289 QED_LM_100000baseKR4_Full_BIT = BIT(10),
293 struct qed_link_params {
296 #define QED_LINK_OVERRIDE_SPEED_AUTONEG BIT(0)
297 #define QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS BIT(1)
298 #define QED_LINK_OVERRIDE_SPEED_FORCED_SPEED BIT(2)
299 #define QED_LINK_OVERRIDE_PAUSE_CONFIG BIT(3)
300 #define QED_LINK_OVERRIDE_LOOPBACK_MODE BIT(4)
305 #define QED_LINK_PAUSE_AUTONEG_ENABLE BIT(0)
306 #define QED_LINK_PAUSE_RX_ENABLE BIT(1)
307 #define QED_LINK_PAUSE_TX_ENABLE BIT(2)
309 #define QED_LINK_LOOPBACK_NONE BIT(0)
310 #define QED_LINK_LOOPBACK_INT_PHY BIT(1)
311 #define QED_LINK_LOOPBACK_EXT_PHY BIT(2)
312 #define QED_LINK_LOOPBACK_EXT BIT(3)
313 #define QED_LINK_LOOPBACK_MAC BIT(4)
317 struct qed_link_output {
320 /* In QED_LM_* defs */
325 u32 speed; /* In Mb/s */
326 u8 duplex; /* In DUPLEX defs */
327 u8 port; /* In PORT defs */
332 struct qed_probe_params {
333 enum qed_protocol protocol;
339 #define QED_DRV_VER_STR_SIZE 12
340 struct qed_slowpath_params {
346 u8 name[QED_DRV_VER_STR_SIZE];
349 #define ILT_PAGE_SIZE_TCFC 0x8000 /* 32KB */
351 struct qed_int_info {
352 struct msix_entry *msix;
355 /* This should be updated by the protocol driver */
359 struct qed_common_cb_ops {
360 void (*link_update)(void *dev,
361 struct qed_link_output *link);
364 struct qed_selftest_ops {
366 * @brief selftest_interrupt - Perform interrupt test
370 * @return 0 on success, error otherwise.
372 int (*selftest_interrupt)(struct qed_dev *cdev);
375 * @brief selftest_memory - Perform memory test
379 * @return 0 on success, error otherwise.
381 int (*selftest_memory)(struct qed_dev *cdev);
384 * @brief selftest_register - Perform register test
388 * @return 0 on success, error otherwise.
390 int (*selftest_register)(struct qed_dev *cdev);
393 * @brief selftest_clock - Perform clock test
397 * @return 0 on success, error otherwise.
399 int (*selftest_clock)(struct qed_dev *cdev);
402 struct qed_common_ops {
403 struct qed_selftest_ops *selftest;
405 struct qed_dev* (*probe)(struct pci_dev *dev,
406 struct qed_probe_params *params);
408 void (*remove)(struct qed_dev *cdev);
410 int (*set_power_state)(struct qed_dev *cdev,
413 void (*set_id)(struct qed_dev *cdev,
417 /* Client drivers need to make this call before slowpath_start.
418 * PF params required for the call before slowpath_start is
419 * documented within the qed_pf_params structure definition.
421 void (*update_pf_params)(struct qed_dev *cdev,
422 struct qed_pf_params *params);
423 int (*slowpath_start)(struct qed_dev *cdev,
424 struct qed_slowpath_params *params);
426 int (*slowpath_stop)(struct qed_dev *cdev);
428 /* Requests to use `cnt' interrupts for fastpath.
429 * upon success, returns number of interrupts allocated for fastpath.
431 int (*set_fp_int)(struct qed_dev *cdev,
434 /* Fills `info' with pointers required for utilizing interrupts */
435 int (*get_fp_int)(struct qed_dev *cdev,
436 struct qed_int_info *info);
438 u32 (*sb_init)(struct qed_dev *cdev,
439 struct qed_sb_info *sb_info,
441 dma_addr_t sb_phy_addr,
443 enum qed_sb_type type);
445 u32 (*sb_release)(struct qed_dev *cdev,
446 struct qed_sb_info *sb_info,
449 void (*simd_handler_config)(struct qed_dev *cdev,
452 void (*handler)(void *));
454 void (*simd_handler_clean)(struct qed_dev *cdev,
457 int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
459 int (*dbg_all_data_size) (struct qed_dev *cdev);
462 * @brief can_link_change - can the instance change the link or not
466 * @return true if link-change is allowed, false otherwise.
468 bool (*can_link_change)(struct qed_dev *cdev);
471 * @brief set_link - set links according to params
474 * @param params - values used to override the default link configuration
476 * @return 0 on success, error otherwise.
478 int (*set_link)(struct qed_dev *cdev,
479 struct qed_link_params *params);
482 * @brief get_link - returns the current link state.
485 * @param if_link - structure to be filled with current link configuration.
487 void (*get_link)(struct qed_dev *cdev,
488 struct qed_link_output *if_link);
491 * @brief - drains chip in case Tx completions fail to arrive due to pause.
495 int (*drain)(struct qed_dev *cdev);
498 * @brief update_msglvl - update module debug level
504 void (*update_msglvl)(struct qed_dev *cdev,
508 int (*chain_alloc)(struct qed_dev *cdev,
509 enum qed_chain_use_mode intended_use,
510 enum qed_chain_mode mode,
511 enum qed_chain_cnt_type cnt_type,
514 struct qed_chain *p_chain);
516 void (*chain_free)(struct qed_dev *cdev,
517 struct qed_chain *p_chain);
520 * @brief get_coalesce - Get coalesce parameters in usec
523 * @param rx_coal - Rx coalesce value in usec
524 * @param tx_coal - Tx coalesce value in usec
527 void (*get_coalesce)(struct qed_dev *cdev, u16 *rx_coal, u16 *tx_coal);
530 * @brief set_coalesce - Configure Rx coalesce value in usec
533 * @param rx_coal - Rx coalesce value in usec
534 * @param tx_coal - Tx coalesce value in usec
535 * @param qid - Queue index
536 * @param sb_id - Status Block Id
538 * @return 0 on success, error otherwise.
540 int (*set_coalesce)(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
544 * @brief set_led - Configure LED mode
547 * @param mode - LED mode
549 * @return 0 on success, error otherwise.
551 int (*set_led)(struct qed_dev *cdev,
552 enum qed_led_mode mode);
555 #define MASK_FIELD(_name, _value) \
556 ((_value) &= (_name ## _MASK))
558 #define FIELD_VALUE(_name, _value) \
559 ((_value & _name ## _MASK) << _name ## _SHIFT)
561 #define SET_FIELD(value, name, flag) \
563 (value) &= ~(name ## _MASK << name ## _SHIFT); \
564 (value) |= (((u64)flag) << (name ## _SHIFT)); \
567 #define GET_FIELD(value, name) \
568 (((value) >> (name ## _SHIFT)) & name ## _MASK)
570 /* Debug print definitions */
571 #define DP_ERR(cdev, fmt, ...) \
572 pr_err("[%s:%d(%s)]" fmt, \
573 __func__, __LINE__, \
574 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
577 #define DP_NOTICE(cdev, fmt, ...) \
579 if (unlikely((cdev)->dp_level <= QED_LEVEL_NOTICE)) { \
580 pr_notice("[%s:%d(%s)]" fmt, \
581 __func__, __LINE__, \
582 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
588 #define DP_INFO(cdev, fmt, ...) \
590 if (unlikely((cdev)->dp_level <= QED_LEVEL_INFO)) { \
591 pr_notice("[%s:%d(%s)]" fmt, \
592 __func__, __LINE__, \
593 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
598 #define DP_VERBOSE(cdev, module, fmt, ...) \
600 if (unlikely(((cdev)->dp_level <= QED_LEVEL_VERBOSE) && \
601 ((cdev)->dp_module & module))) { \
602 pr_notice("[%s:%d(%s)]" fmt, \
603 __func__, __LINE__, \
604 DP_NAME(cdev) ? DP_NAME(cdev) : "", \
610 QED_LEVEL_VERBOSE = 0x0,
611 QED_LEVEL_INFO = 0x1,
612 QED_LEVEL_NOTICE = 0x2,
616 #define QED_LOG_LEVEL_SHIFT (30)
617 #define QED_LOG_VERBOSE_MASK (0x3fffffff)
618 #define QED_LOG_INFO_MASK (0x40000000)
619 #define QED_LOG_NOTICE_MASK (0x80000000)
622 QED_MSG_SPQ = 0x10000,
623 QED_MSG_STATS = 0x20000,
624 QED_MSG_DCB = 0x40000,
625 QED_MSG_IOV = 0x80000,
626 QED_MSG_SP = 0x100000,
627 QED_MSG_STORAGE = 0x200000,
628 QED_MSG_CXT = 0x800000,
629 QED_MSG_LL2 = 0x1000000,
630 QED_MSG_ILT = 0x2000000,
631 QED_MSG_ROCE = 0x4000000,
632 QED_MSG_DEBUG = 0x8000000,
633 /* to be added...up to 0x8000000 */
642 struct qed_eth_stats {
643 u64 no_buff_discards;
644 u64 packet_too_big_discard;
652 u64 mftag_filter_discards;
653 u64 mac_filter_discards;
660 u64 tx_err_drop_pkts;
661 u64 tpa_coalesced_pkts;
662 u64 tpa_coalesced_events;
664 u64 tpa_not_coalesced_pkts;
665 u64 tpa_coalesced_bytes;
668 u64 rx_64_byte_packets;
669 u64 rx_65_to_127_byte_packets;
670 u64 rx_128_to_255_byte_packets;
671 u64 rx_256_to_511_byte_packets;
672 u64 rx_512_to_1023_byte_packets;
673 u64 rx_1024_to_1518_byte_packets;
674 u64 rx_1519_to_1522_byte_packets;
675 u64 rx_1519_to_2047_byte_packets;
676 u64 rx_2048_to_4095_byte_packets;
677 u64 rx_4096_to_9216_byte_packets;
678 u64 rx_9217_to_16383_byte_packets;
680 u64 rx_mac_crtl_frames;
684 u64 rx_carrier_errors;
685 u64 rx_oversize_packets;
687 u64 rx_undersize_packets;
689 u64 tx_64_byte_packets;
690 u64 tx_65_to_127_byte_packets;
691 u64 tx_128_to_255_byte_packets;
692 u64 tx_256_to_511_byte_packets;
693 u64 tx_512_to_1023_byte_packets;
694 u64 tx_1024_to_1518_byte_packets;
695 u64 tx_1519_to_2047_byte_packets;
696 u64 tx_2048_to_4095_byte_packets;
697 u64 tx_4096_to_9216_byte_packets;
698 u64 tx_9217_to_16383_byte_packets;
701 u64 tx_lpi_entry_count;
702 u64 tx_total_collisions;
706 u64 rx_mac_uc_packets;
707 u64 rx_mac_mc_packets;
708 u64 rx_mac_bc_packets;
709 u64 rx_mac_frames_ok;
711 u64 tx_mac_uc_packets;
712 u64 tx_mac_mc_packets;
713 u64 tx_mac_bc_packets;
714 u64 tx_mac_ctrl_frames;
717 #define QED_SB_IDX 0x0002
720 #define TX_PI(tc) (RX_PI + 1 + tc)
722 struct qed_sb_cnt_info {
728 static inline u16 qed_sb_update_sb_idx(struct qed_sb_info *sb_info)
733 prod = le32_to_cpu(sb_info->sb_virt->prod_index) &
734 STATUS_BLOCK_PROD_INDEX_MASK;
735 if (sb_info->sb_ack != prod) {
736 sb_info->sb_ack = prod;
747 * @brief This function creates an update command for interrupts that is
748 * written to the IGU.
750 * @param sb_info - This is the structure allocated and
751 * initialized per status block. Assumption is
752 * that it was initialized using qed_sb_init
753 * @param int_cmd - Enable/Disable/Nop
754 * @param upd_flg - whether igu consumer should be
757 * @return inline void
759 static inline void qed_sb_ack(struct qed_sb_info *sb_info,
760 enum igu_int_cmd int_cmd,
763 struct igu_prod_cons_update igu_ack = { 0 };
765 igu_ack.sb_id_and_flags =
766 ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) |
767 (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) |
768 (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) |
769 (IGU_SEG_ACCESS_REG <<
770 IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT));
772 DIRECT_REG_WR(sb_info->igu_addr, igu_ack.sb_id_and_flags);
774 /* Both segments (interrupts & acks) are written to same place address;
775 * Need to guarantee all commands will be received (in-order) by HW.
781 static inline void __internal_ram_wr(void *p_hwfn,
789 for (i = 0; i < size / sizeof(*data); i++)
790 DIRECT_REG_WR(&((u32 __iomem *)addr)[i], data[i]);
793 static inline void internal_ram_wr(void __iomem *addr,
797 __internal_ram_wr(NULL, addr, size, data);
803 QED_RSS_IPV4_TCP = 0x4,
804 QED_RSS_IPV6_TCP = 0x8,
805 QED_RSS_IPV4_UDP = 0x10,
806 QED_RSS_IPV6_UDP = 0x20,
809 #define QED_RSS_IND_TABLE_SIZE 128
810 #define QED_RSS_KEY_SIZE 10 /* size in 32b chunks */