2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
19 #include "bfa_defs_svc.h"
25 BFA_TRC_FILE(CNA, PORT);
27 #define bfa_ioc_portid(__ioc) ((__ioc)->port_id)
30 bfa_port_stats_swap(struct bfa_port_s *port, union bfa_port_stats_u *stats)
32 u32 *dip = (u32 *) stats;
36 for (i = 0; i < sizeof(union bfa_port_stats_u)/sizeof(u32);
41 dip[i] = be32_to_cpu(t0);
42 dip[i + 1] = be32_to_cpu(t1);
44 dip[i] = be32_to_cpu(t1);
45 dip[i + 1] = be32_to_cpu(t0);
51 * bfa_port_enable_isr()
54 * @param[in] port - Pointer to the port module
55 * status - Return status from the f/w
60 bfa_port_enable_isr(struct bfa_port_s *port, bfa_status_t status)
62 bfa_trc(port, status);
63 port->endis_pending = BFA_FALSE;
64 port->endis_cbfn(port->endis_cbarg, status);
68 * bfa_port_disable_isr()
71 * @param[in] port - Pointer to the port module
72 * status - Return status from the f/w
77 bfa_port_disable_isr(struct bfa_port_s *port, bfa_status_t status)
79 bfa_trc(port, status);
80 port->endis_pending = BFA_FALSE;
81 port->endis_cbfn(port->endis_cbarg, status);
85 * bfa_port_get_stats_isr()
88 * @param[in] port - Pointer to the Port module
89 * status - Return status from the f/w
94 bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status)
96 port->stats_status = status;
97 port->stats_busy = BFA_FALSE;
99 if (status == BFA_STATUS_OK) {
102 memcpy(port->stats, port->stats_dma.kva,
103 sizeof(union bfa_port_stats_u));
104 bfa_port_stats_swap(port, port->stats);
106 do_gettimeofday(&tv);
107 port->stats->fc.secs_reset = tv.tv_sec - port->stats_reset_time;
110 if (port->stats_cbfn) {
111 port->stats_cbfn(port->stats_cbarg, status);
112 port->stats_cbfn = NULL;
117 * bfa_port_clear_stats_isr()
120 * @param[in] port - Pointer to the Port module
121 * status - Return status from the f/w
126 bfa_port_clear_stats_isr(struct bfa_port_s *port, bfa_status_t status)
130 port->stats_status = status;
131 port->stats_busy = BFA_FALSE;
134 * re-initialize time stamp for stats reset
136 do_gettimeofday(&tv);
137 port->stats_reset_time = tv.tv_sec;
139 if (port->stats_cbfn) {
140 port->stats_cbfn(port->stats_cbarg, status);
141 port->stats_cbfn = NULL;
149 * @param[in] Pointer to the Port module data structure.
154 bfa_port_isr(void *cbarg, struct bfi_mbmsg_s *m)
156 struct bfa_port_s *port = (struct bfa_port_s *) cbarg;
157 union bfi_port_i2h_msg_u *i2hmsg;
159 i2hmsg = (union bfi_port_i2h_msg_u *) m;
160 bfa_trc(port, m->mh.msg_id);
162 switch (m->mh.msg_id) {
163 case BFI_PORT_I2H_ENABLE_RSP:
164 if (port->endis_pending == BFA_FALSE)
166 bfa_port_enable_isr(port, i2hmsg->enable_rsp.status);
169 case BFI_PORT_I2H_DISABLE_RSP:
170 if (port->endis_pending == BFA_FALSE)
172 bfa_port_disable_isr(port, i2hmsg->disable_rsp.status);
175 case BFI_PORT_I2H_GET_STATS_RSP:
176 /* Stats busy flag is still set? (may be cmd timed out) */
177 if (port->stats_busy == BFA_FALSE)
179 bfa_port_get_stats_isr(port, i2hmsg->getstats_rsp.status);
182 case BFI_PORT_I2H_CLEAR_STATS_RSP:
183 if (port->stats_busy == BFA_FALSE)
185 bfa_port_clear_stats_isr(port, i2hmsg->clearstats_rsp.status);
199 * @return Size of DMA region
202 bfa_port_meminfo(void)
204 return BFA_ROUNDUP(sizeof(union bfa_port_stats_u), BFA_DMA_ALIGN_SZ);
208 * bfa_port_mem_claim()
211 * @param[in] port Port module pointer
212 * dma_kva Kernel Virtual Address of Port DMA Memory
213 * dma_pa Physical Address of Port DMA Memory
218 bfa_port_mem_claim(struct bfa_port_s *port, u8 *dma_kva, u64 dma_pa)
220 port->stats_dma.kva = dma_kva;
221 port->stats_dma.pa = dma_pa;
227 * Send the Port enable request to the f/w
229 * @param[in] Pointer to the Port module data structure.
234 bfa_port_enable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn,
237 struct bfi_port_generic_req_s *m;
239 if (bfa_ioc_is_disabled(port->ioc)) {
240 bfa_trc(port, BFA_STATUS_IOC_DISABLED);
241 return BFA_STATUS_IOC_DISABLED;
244 if (!bfa_ioc_is_operational(port->ioc)) {
245 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
246 return BFA_STATUS_IOC_FAILURE;
249 if (port->endis_pending) {
250 bfa_trc(port, BFA_STATUS_DEVBUSY);
251 return BFA_STATUS_DEVBUSY;
254 m = (struct bfi_port_generic_req_s *) port->endis_mb.msg;
257 port->endis_cbfn = cbfn;
258 port->endis_cbarg = cbarg;
259 port->endis_pending = BFA_TRUE;
261 bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_ENABLE_REQ,
262 bfa_ioc_portid(port->ioc));
263 bfa_ioc_mbox_queue(port->ioc, &port->endis_mb);
265 return BFA_STATUS_OK;
271 * Send the Port disable request to the f/w
273 * @param[in] Pointer to the Port module data structure.
278 bfa_port_disable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn,
281 struct bfi_port_generic_req_s *m;
283 if (bfa_ioc_is_disabled(port->ioc)) {
284 bfa_trc(port, BFA_STATUS_IOC_DISABLED);
285 return BFA_STATUS_IOC_DISABLED;
288 if (!bfa_ioc_is_operational(port->ioc)) {
289 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
290 return BFA_STATUS_IOC_FAILURE;
293 if (port->endis_pending) {
294 bfa_trc(port, BFA_STATUS_DEVBUSY);
295 return BFA_STATUS_DEVBUSY;
298 m = (struct bfi_port_generic_req_s *) port->endis_mb.msg;
301 port->endis_cbfn = cbfn;
302 port->endis_cbarg = cbarg;
303 port->endis_pending = BFA_TRUE;
305 bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_DISABLE_REQ,
306 bfa_ioc_portid(port->ioc));
307 bfa_ioc_mbox_queue(port->ioc, &port->endis_mb);
309 return BFA_STATUS_OK;
313 * bfa_port_get_stats()
315 * Send the request to the f/w to fetch Port statistics.
317 * @param[in] Pointer to the Port module data structure.
322 bfa_port_get_stats(struct bfa_port_s *port, union bfa_port_stats_u *stats,
323 bfa_port_stats_cbfn_t cbfn, void *cbarg)
325 struct bfi_port_get_stats_req_s *m;
327 if (!bfa_ioc_is_operational(port->ioc)) {
328 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
329 return BFA_STATUS_IOC_FAILURE;
332 if (port->stats_busy) {
333 bfa_trc(port, BFA_STATUS_DEVBUSY);
334 return BFA_STATUS_DEVBUSY;
337 m = (struct bfi_port_get_stats_req_s *) port->stats_mb.msg;
340 port->stats_cbfn = cbfn;
341 port->stats_cbarg = cbarg;
342 port->stats_busy = BFA_TRUE;
343 bfa_dma_be_addr_set(m->dma_addr, port->stats_dma.pa);
345 bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_GET_STATS_REQ,
346 bfa_ioc_portid(port->ioc));
347 bfa_ioc_mbox_queue(port->ioc, &port->stats_mb);
349 return BFA_STATUS_OK;
353 * bfa_port_clear_stats()
356 * @param[in] Pointer to the Port module data structure.
361 bfa_port_clear_stats(struct bfa_port_s *port, bfa_port_stats_cbfn_t cbfn,
364 struct bfi_port_generic_req_s *m;
366 if (!bfa_ioc_is_operational(port->ioc)) {
367 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
368 return BFA_STATUS_IOC_FAILURE;
371 if (port->stats_busy) {
372 bfa_trc(port, BFA_STATUS_DEVBUSY);
373 return BFA_STATUS_DEVBUSY;
376 m = (struct bfi_port_generic_req_s *) port->stats_mb.msg;
378 port->stats_cbfn = cbfn;
379 port->stats_cbarg = cbarg;
380 port->stats_busy = BFA_TRUE;
382 bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_CLEAR_STATS_REQ,
383 bfa_ioc_portid(port->ioc));
384 bfa_ioc_mbox_queue(port->ioc, &port->stats_mb);
386 return BFA_STATUS_OK;
393 * @param[in] Pointer to the Port module data structure.
398 bfa_port_hbfail(void *arg)
400 struct bfa_port_s *port = (struct bfa_port_s *) arg;
402 /* Fail any pending get_stats/clear_stats requests */
403 if (port->stats_busy) {
404 if (port->stats_cbfn)
405 port->stats_cbfn(port->stats_cbarg, BFA_STATUS_FAILED);
406 port->stats_cbfn = NULL;
407 port->stats_busy = BFA_FALSE;
410 /* Clear any enable/disable is pending */
411 if (port->endis_pending) {
412 if (port->endis_cbfn)
413 port->endis_cbfn(port->endis_cbarg, BFA_STATUS_FAILED);
414 port->endis_cbfn = NULL;
415 port->endis_pending = BFA_FALSE;
423 * @param[in] port - Pointer to the Port module data structure
424 * ioc - Pointer to the ioc module data structure
425 * dev - Pointer to the device driver module data structure
426 * The device driver specific mbox ISR functions have
427 * this pointer as one of the parameters.
433 bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc,
434 void *dev, struct bfa_trc_mod_s *trcmod)
442 port->trcmod = trcmod;
444 port->stats_busy = BFA_FALSE;
445 port->endis_pending = BFA_FALSE;
446 port->stats_cbfn = NULL;
447 port->endis_cbfn = NULL;
449 bfa_ioc_mbox_regisr(port->ioc, BFI_MC_PORT, bfa_port_isr, port);
450 bfa_ioc_hbfail_init(&port->hbfail, bfa_port_hbfail, port);
451 list_add_tail(&port->hbfail.qe, &port->ioc->hb_notify_q);
454 * initialize time stamp for stats reset
456 do_gettimeofday(&tv);
457 port->stats_reset_time = tv.tv_sec;