/*
* Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade Fibre Channel Host Bus Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include "bfad_drv.h"
#include "bfa_plog.h"
#include "bfa_cs.h"
#include "bfa_modules.h"
BFA_TRC_FILE(HAL, FCXP);
BFA_MODULE(fcxp);
BFA_MODULE(sgpg);
BFA_MODULE(lps);
BFA_MODULE(fcport);
BFA_MODULE(rport);
BFA_MODULE(uf);
/*
* LPS related definitions
*/
#define BFA_LPS_MIN_LPORTS (1)
#define BFA_LPS_MAX_LPORTS (256)
/*
* Maximum Vports supported per physical port or vf.
*/
#define BFA_LPS_MAX_VPORTS_SUPP_CB 255
#define BFA_LPS_MAX_VPORTS_SUPP_CT 190
/*
* FC PORT related definitions
*/
/*
* The port is considered disabled if corresponding physical port or IOC are
* disabled explicitly
*/
#define BFA_PORT_IS_DISABLED(bfa) \
((bfa_fcport_is_disabled(bfa) == BFA_TRUE) || \
(bfa_ioc_is_disabled(&bfa->ioc) == BFA_TRUE))
/*
* BFA port state machine events
*/
enum bfa_fcport_sm_event {
BFA_FCPORT_SM_START = 1, /* start port state machine */
BFA_FCPORT_SM_STOP = 2, /* stop port state machine */
BFA_FCPORT_SM_ENABLE = 3, /* enable port */
BFA_FCPORT_SM_DISABLE = 4, /* disable port state machine */
BFA_FCPORT_SM_FWRSP = 5, /* firmware enable/disable rsp */
BFA_FCPORT_SM_LINKUP = 6, /* firmware linkup event */
BFA_FCPORT_SM_LINKDOWN = 7, /* firmware linkup down */
BFA_FCPORT_SM_QRESUME = 8, /* CQ space available */
BFA_FCPORT_SM_HWFAIL = 9, /* IOC h/w failure */
};
/*
* BFA port link notification state machine events
*/
enum bfa_fcport_ln_sm_event {
BFA_FCPORT_LN_SM_LINKUP = 1, /* linkup event */
BFA_FCPORT_LN_SM_LINKDOWN = 2, /* linkdown event */
BFA_FCPORT_LN_SM_NOTIFICATION = 3 /* done notification */
};
/*
* RPORT related definitions
*/
#define bfa_rport_offline_cb(__rp) do { \
if ((__rp)->bfa->fcs) \
bfa_cb_rport_offline((__rp)->rport_drv); \
else { \
bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \
__bfa_cb_rport_offline, (__rp)); \
} \
} while (0)
#define bfa_rport_online_cb(__rp) do { \
if ((__rp)->bfa->fcs) \
bfa_cb_rport_online((__rp)->rport_drv); \
else { \
bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \
__bfa_cb_rport_online, (__rp)); \
} \
} while (0)
/*
* forward declarations FCXP related functions
*/
static void __bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete);
static void hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
struct bfi_fcxp_send_rsp_s *fcxp_rsp);
static void hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen,
struct bfa_fcxp_s *fcxp, struct fchs_s *fchs);
static void bfa_fcxp_qresume(void *cbarg);
static void bfa_fcxp_queue(struct bfa_fcxp_s *fcxp,
struct bfi_fcxp_send_req_s *send_req);
/*
* forward declarations for LPS functions
*/
static void bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
u32 *dm_len);
static void bfa_lps_attach(struct bfa_s *bfa, void *bfad,
struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo,
struct bfa_pcidev_s *pcidev);
static void bfa_lps_detach(struct bfa_s *bfa);
static void bfa_lps_start(struct bfa_s *bfa);
static void bfa_lps_stop(struct bfa_s *bfa);
static void bfa_lps_iocdisable(struct bfa_s *bfa);
static void bfa_lps_login_rsp(struct bfa_s *bfa,
struct bfi_lps_login_rsp_s *rsp);
static void bfa_lps_logout_rsp(struct bfa_s *bfa,
struct bfi_lps_logout_rsp_s *rsp);
static void bfa_lps_reqq_resume(void *lps_arg);
static void bfa_lps_free(struct bfa_lps_s *lps);
static void bfa_lps_send_login(struct bfa_lps_s *lps);
static void bfa_lps_send_logout(struct bfa_lps_s *lps);
static void bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps);
static void bfa_lps_login_comp(struct bfa_lps_s *lps);
static void bfa_lps_logout_comp(struct bfa_lps_s *lps);
static void bfa_lps_cvl_event(struct bfa_lps_s *lps);
/*
* forward declaration for LPS state machine
*/
static void bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event
event);
static void bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps,
enum bfa_lps_event event);
static void bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event);
static void bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event
event);
/*
* forward declaration for FC Port functions
*/
static bfa_boolean_t bfa_fcport_send_enable(struct bfa_fcport_s *fcport);
static bfa_boolean_t bfa_fcport_send_disable(struct bfa_fcport_s *fcport);
static void bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport);
static void bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport);
static void bfa_fcport_set_wwns(struct bfa_fcport_s *fcport);
static void __bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete);
static void bfa_fcport_scn(struct bfa_fcport_s *fcport,
enum bfa_port_linkstate event, bfa_boolean_t trunk);
static void bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln,
enum bfa_port_linkstate event);
static void __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete);
static void bfa_fcport_stats_get_timeout(void *cbarg);
static void bfa_fcport_stats_clr_timeout(void *cbarg);
static void bfa_trunk_iocdisable(struct bfa_s *bfa);
/*
* forward declaration for FC PORT state machine
*/
static void bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event);
static void bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static void bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event);
static struct bfa_sm_table_s hal_port_sm_table[] = {
{BFA_SM(bfa_fcport_sm_uninit), BFA_PORT_ST_UNINIT},
{BFA_SM(bfa_fcport_sm_enabling_qwait), BFA_PORT_ST_ENABLING_QWAIT},
{BFA_SM(bfa_fcport_sm_enabling), BFA_PORT_ST_ENABLING},
{BFA_SM(bfa_fcport_sm_linkdown), BFA_PORT_ST_LINKDOWN},
{BFA_SM(bfa_fcport_sm_linkup), BFA_PORT_ST_LINKUP},
{BFA_SM(bfa_fcport_sm_disabling_qwait), BFA_PORT_ST_DISABLING_QWAIT},
{BFA_SM(bfa_fcport_sm_toggling_qwait), BFA_PORT_ST_TOGGLING_QWAIT},
{BFA_SM(bfa_fcport_sm_disabling), BFA_PORT_ST_DISABLING},
{BFA_SM(bfa_fcport_sm_disabled), BFA_PORT_ST_DISABLED},
{BFA_SM(bfa_fcport_sm_stopped), BFA_PORT_ST_STOPPED},
{BFA_SM(bfa_fcport_sm_iocdown), BFA_PORT_ST_IOCDOWN},
{BFA_SM(bfa_fcport_sm_iocfail), BFA_PORT_ST_IOCDOWN},
};
/*
* forward declaration for RPORT related functions
*/
static struct bfa_rport_s *bfa_rport_alloc(struct bfa_rport_mod_s *rp_mod);
static void bfa_rport_free(struct bfa_rport_s *rport);
static bfa_boolean_t bfa_rport_send_fwcreate(struct bfa_rport_s *rp);
static bfa_boolean_t bfa_rport_send_fwdelete(struct bfa_rport_s *rp);
static bfa_boolean_t bfa_rport_send_fwspeed(struct bfa_rport_s *rp);
static void __bfa_cb_rport_online(void *cbarg,
bfa_boolean_t complete);
static void __bfa_cb_rport_offline(void *cbarg,
bfa_boolean_t complete);
/*
* forward declaration for RPORT state machine
*/
static void bfa_rport_sm_uninit(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_created(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_fwcreate(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_online(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_fwdelete(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_offline(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_deleting(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_delete_pending(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_iocdisable(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp,
enum bfa_rport_event event);
static void bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp,
enum bfa_rport_event event);
/*
* PLOG related definitions
*/
static int
plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec)
{
if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
(pl_rec->log_type != BFA_PL_LOG_TYPE_STRING))
return 1;
if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) &&
(pl_rec->log_num_ints > BFA_PL_INT_LOG_SZ))
return 1;
return 0;
}
static u64
bfa_get_log_time(void)
{
u64 system_time = 0;
struct timeval tv;
do_gettimeofday(&tv);
/* We are interested in seconds only. */
system_time = tv.tv_sec;
return system_time;
}
static void
bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
{
u16 tail;
struct bfa_plog_rec_s *pl_recp;
if (plog->plog_enabled == 0)
return;
if (plkd_validate_logrec(pl_rec)) {
WARN_ON(1);
return;
}
tail = plog->tail;
pl_recp = &(plog->plog_recs[tail]);
memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s));
pl_recp->tv = bfa_get_log_time();
BFA_PL_LOG_REC_INCR(plog->tail);
if (plog->head == plog->tail)
BFA_PL_LOG_REC_INCR(plog->head);
}
void
bfa_plog_init(struct bfa_plog_s *plog)
{
memset((char *)plog, 0, sizeof(struct bfa_plog_s));
memcpy(plog->plog_sig, BFA_PL_SIG_STR, BFA_PL_SIG_LEN);
plog->head = plog->tail = 0;
plog->plog_enabled = 1;
}
void
bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
enum bfa_plog_eid event,
u16 misc, char *log_str)
{
struct bfa_plog_rec_s lp;
if (plog->plog_enabled) {
memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
lp.mid = mid;
lp.eid = event;
lp.log_type = BFA_PL_LOG_TYPE_STRING;
lp.misc = misc;
strncpy(lp.log_entry.string_log, log_str,
BFA_PL_STRING_LOG_SZ - 1);
lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
bfa_plog_add(plog, &lp);
}
}
void
bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
enum bfa_plog_eid event,
u16 misc, u32 *intarr, u32 num_ints)
{
struct bfa_plog_rec_s lp;
u32 i;
if (num_ints > BFA_PL_INT_LOG_SZ)
num_ints = BFA_PL_INT_LOG_SZ;
if (plog->plog_enabled) {
memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
lp.mid = mid;
lp.eid = event;
lp.log_type = BFA_PL_LOG_TYPE_INT;
lp.misc = misc;
for (i = 0; i < num_ints; i++)
lp.log_entry.int_log[i] = intarr[i];
lp.log_num_ints = (u8) num_ints;
bfa_plog_add(plog, &lp);
}
}
void
bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
enum bfa_plog_eid event,
u16 misc, struct fchs_s *fchdr)
{
struct bfa_plog_rec_s lp;
u32 *tmp_int = (u32 *) fchdr;
u32 ints[BFA_PL_INT_LOG_SZ];
if (plog->plog_enabled) {
memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
ints[0] = tmp_int[0];
ints[1] = tmp_int[1];
ints[2] = tmp_int[4];
bfa_plog_intarr(plog, mid, event, misc, ints, 3);
}
}
void
bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr,
u32 pld_w0)
{
struct bfa_plog_rec_s lp;
u32 *tmp_int = (u32 *) fchdr;
u32 ints[BFA_PL_INT_LOG_SZ];
if (plog->plog_enabled) {
memset(&lp, 0, sizeof(struct bfa_plog_rec_s));
ints[0] = tmp_int[0];
ints[1] = tmp_int[1];
ints[2] = tmp_int[4];
ints[3] = pld_w0;
bfa_plog_intarr(plog, mid, event, misc, ints, 4);
}
}
/*
* fcxp_pvt BFA FCXP private functions
*/
static void
claim_fcxp_req_rsp_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
{
u8 *dm_kva = NULL;
u64 dm_pa;
u32 buf_pool_sz;
dm_kva = bfa_meminfo_dma_virt(mi);
dm_pa = bfa_meminfo_dma_phys(mi);
buf_pool_sz = mod->req_pld_sz * mod->num_fcxps;
/*
* Initialize the fcxp req payload list
*/
mod->req_pld_list_kva = dm_kva;
mod->req_pld_list_pa = dm_pa;
dm_kva += buf_pool_sz;
dm_pa += buf_pool_sz;
memset(mod->req_pld_list_kva, 0, buf_pool_sz);
/*
* Initialize the fcxp rsp payload list
*/
buf_pool_sz = mod->rsp_pld_sz * mod->num_fcxps;
mod->rsp_pld_list_kva = dm_kva;
mod->rsp_pld_list_pa = dm_pa;
dm_kva += buf_pool_sz;
dm_pa += buf_pool_sz;
memset(mod->rsp_pld_list_kva, 0, buf_pool_sz);
bfa_meminfo_dma_virt(mi) = dm_kva;
bfa_meminfo_dma_phys(mi) = dm_pa;
}
static void
claim_fcxps_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
{
u16 i;
struct bfa_fcxp_s *fcxp;
fcxp = (struct bfa_fcxp_s *) bfa_meminfo_kva(mi);
memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps);
INIT_LIST_HEAD(&mod->fcxp_free_q);
INIT_LIST_HEAD(&mod->fcxp_active_q);
mod->fcxp_list = fcxp;
for (i = 0; i < mod->num_fcxps; i++) {
fcxp->fcxp_mod = mod;
fcxp->fcxp_tag = i;
list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp);
fcxp->reqq_waiting = BFA_FALSE;
fcxp = fcxp + 1;
}
bfa_meminfo_kva(mi) = (void *)fcxp;
}
static void
bfa_fcxp_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
u32 *dm_len)
{
u16 num_fcxp_reqs = cfg->fwcfg.num_fcxp_reqs;
if (num_fcxp_reqs == 0)
return;
/*
* Account for req/rsp payload
*/
*dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
if (cfg->drvcfg.min_cfg)
*dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
else
*dm_len += BFA_FCXP_MAX_LBUF_SZ * num_fcxp_reqs;
/*
* Account for fcxp structs
*/
*ndm_len += sizeof(struct bfa_fcxp_s) * num_fcxp_reqs;
}
static void
bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
memset(mod, 0, sizeof(struct bfa_fcxp_mod_s));
mod->bfa = bfa;
mod->num_fcxps = cfg->fwcfg.num_fcxp_reqs;
/*
* Initialize FCXP request and response payload sizes.
*/
mod->req_pld_sz = mod->rsp_pld_sz = BFA_FCXP_MAX_IBUF_SZ;
if (!cfg->drvcfg.min_cfg)
mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ;
INIT_LIST_HEAD(&mod->wait_q);
claim_fcxp_req_rsp_mem(mod, meminfo);
claim_fcxps_mem(mod, meminfo);
}
static void
bfa_fcxp_detach(struct bfa_s *bfa)
{
}
static void
bfa_fcxp_start(struct bfa_s *bfa)
{
}
static void
bfa_fcxp_stop(struct bfa_s *bfa)
{
}
static void
bfa_fcxp_iocdisable(struct bfa_s *bfa)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
struct bfa_fcxp_s *fcxp;
struct list_head *qe, *qen;
list_for_each_safe(qe, qen, &mod->fcxp_active_q) {
fcxp = (struct bfa_fcxp_s *) qe;
if (fcxp->caller == NULL) {
fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
BFA_STATUS_IOC_FAILURE, 0, 0, NULL);
bfa_fcxp_free(fcxp);
} else {
fcxp->rsp_status = BFA_STATUS_IOC_FAILURE;
bfa_cb_queue(bfa, &fcxp->hcb_qe,
__bfa_fcxp_send_cbfn, fcxp);
}
}
}
static struct bfa_fcxp_s *
bfa_fcxp_get(struct bfa_fcxp_mod_s *fm)
{
struct bfa_fcxp_s *fcxp;
bfa_q_deq(&fm->fcxp_free_q, &fcxp);
if (fcxp)
list_add_tail(&fcxp->qe, &fm->fcxp_active_q);
return fcxp;
}
static void
bfa_fcxp_init_reqrsp(struct bfa_fcxp_s *fcxp,
struct bfa_s *bfa,
u8 *use_ibuf,
u32 *nr_sgles,
bfa_fcxp_get_sgaddr_t *r_sga_cbfn,
bfa_fcxp_get_sglen_t *r_sglen_cbfn,
struct list_head *r_sgpg_q,
int n_sgles,
bfa_fcxp_get_sgaddr_t sga_cbfn,
bfa_fcxp_get_sglen_t sglen_cbfn)
{
WARN_ON(bfa == NULL);
bfa_trc(bfa, fcxp->fcxp_tag);
if (n_sgles == 0) {
*use_ibuf = 1;
} else {
WARN_ON(*sga_cbfn == NULL);
WARN_ON(*sglen_cbfn == NULL);
*use_ibuf = 0;
*r_sga_cbfn = sga_cbfn;
*r_sglen_cbfn = sglen_cbfn;
*nr_sgles = n_sgles;
/*
* alloc required sgpgs
*/
if (n_sgles > BFI_SGE_INLINE)
WARN_ON(1);
}
}
static void
bfa_fcxp_init(struct bfa_fcxp_s *fcxp,
void *caller, struct bfa_s *bfa, int nreq_sgles,
int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
bfa_fcxp_get_sglen_t req_sglen_cbfn,
bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
{
WARN_ON(bfa == NULL);
bfa_trc(bfa, fcxp->fcxp_tag);
fcxp->caller = caller;
bfa_fcxp_init_reqrsp(fcxp, bfa,
&fcxp->use_ireqbuf, &fcxp->nreq_sgles, &fcxp->req_sga_cbfn,
&fcxp->req_sglen_cbfn, &fcxp->req_sgpg_q,
nreq_sgles, req_sga_cbfn, req_sglen_cbfn);
bfa_fcxp_init_reqrsp(fcxp, bfa,
&fcxp->use_irspbuf, &fcxp->nrsp_sgles, &fcxp->rsp_sga_cbfn,
&fcxp->rsp_sglen_cbfn, &fcxp->rsp_sgpg_q,
nrsp_sgles, rsp_sga_cbfn, rsp_sglen_cbfn);
}
static void
bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
{
struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
struct bfa_fcxp_wqe_s *wqe;
bfa_q_deq(&mod->wait_q, &wqe);
if (wqe) {
bfa_trc(mod->bfa, fcxp->fcxp_tag);
bfa_fcxp_init(fcxp, wqe->caller, wqe->bfa, wqe->nreq_sgles,
wqe->nrsp_sgles, wqe->req_sga_cbfn,
wqe->req_sglen_cbfn, wqe->rsp_sga_cbfn,
wqe->rsp_sglen_cbfn);
wqe->alloc_cbfn(wqe->alloc_cbarg, fcxp);
return;
}
WARN_ON(!bfa_q_is_on_q(&mod->fcxp_active_q, fcxp));
list_del(&fcxp->qe);
list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
}
static void
bfa_fcxp_null_comp(void *bfad_fcxp, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_status_t req_status, u32 rsp_len,
u32 resid_len, struct fchs_s *rsp_fchs)
{
/* discarded fcxp completion */
}
static void
__bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete)
{
struct bfa_fcxp_s *fcxp = cbarg;
if (complete) {
fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
fcxp->rsp_status, fcxp->rsp_len,
fcxp->residue_len, &fcxp->rsp_fchs);
} else {
bfa_fcxp_free(fcxp);
}
}
static void
hal_fcxp_send_comp(struct bfa_s *bfa, struct bfi_fcxp_send_rsp_s *fcxp_rsp)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
struct bfa_fcxp_s *fcxp;
u16 fcxp_tag = be16_to_cpu(fcxp_rsp->fcxp_tag);
bfa_trc(bfa, fcxp_tag);
fcxp_rsp->rsp_len = be32_to_cpu(fcxp_rsp->rsp_len);
/*
* @todo f/w should not set residue to non-0 when everything
* is received.
*/
if (fcxp_rsp->req_status == BFA_STATUS_OK)
fcxp_rsp->residue_len = 0;
else
fcxp_rsp->residue_len = be32_to_cpu(fcxp_rsp->residue_len);
fcxp = BFA_FCXP_FROM_TAG(mod, fcxp_tag);
WARN_ON(fcxp->send_cbfn == NULL);
hal_fcxp_rx_plog(mod->bfa, fcxp, fcxp_rsp);
if (fcxp->send_cbfn != NULL) {
bfa_trc(mod->bfa, (NULL == fcxp->caller));
if (fcxp->caller == NULL) {
fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
fcxp_rsp->req_status, fcxp_rsp->rsp_len,
fcxp_rsp->residue_len, &fcxp_rsp->fchs);
/*
* fcxp automatically freed on return from the callback
*/
bfa_fcxp_free(fcxp);
} else {
fcxp->rsp_status = fcxp_rsp->req_status;
fcxp->rsp_len = fcxp_rsp->rsp_len;
fcxp->residue_len = fcxp_rsp->residue_len;
fcxp->rsp_fchs = fcxp_rsp->fchs;
bfa_cb_queue(bfa, &fcxp->hcb_qe,
__bfa_fcxp_send_cbfn, fcxp);
}
} else {
bfa_trc(bfa, (NULL == fcxp->send_cbfn));
}
}
static void
hal_fcxp_set_local_sges(struct bfi_sge_s *sge, u32 reqlen, u64 req_pa)
{
union bfi_addr_u sga_zero = { {0} };
sge->sg_len = reqlen;
sge->flags = BFI_SGE_DATA_LAST;
bfa_dma_addr_set(sge[0].sga, req_pa);
bfa_sge_to_be(sge);
sge++;
sge->sga = sga_zero;
sge->sg_len = reqlen;
sge->flags = BFI_SGE_PGDLEN;
bfa_sge_to_be(sge);
}
static void
hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, struct bfa_fcxp_s *fcxp,
struct fchs_s *fchs)
{
/*
* TODO: TX ox_id
*/
if (reqlen > 0) {
if (fcxp->use_ireqbuf) {
u32 pld_w0 =
*((u32 *) BFA_FCXP_REQ_PLD(fcxp));
bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
BFA_PL_EID_TX,
reqlen + sizeof(struct fchs_s), fchs,
pld_w0);
} else {
bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
BFA_PL_EID_TX,
reqlen + sizeof(struct fchs_s),
fchs);
}
} else {
bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_TX,
reqlen + sizeof(struct fchs_s), fchs);
}
}
static void
hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
struct bfi_fcxp_send_rsp_s *fcxp_rsp)
{
if (fcxp_rsp->rsp_len > 0) {
if (fcxp->use_irspbuf) {
u32 pld_w0 =
*((u32 *) BFA_FCXP_RSP_PLD(fcxp));
bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
BFA_PL_EID_RX,
(u16) fcxp_rsp->rsp_len,
&fcxp_rsp->fchs, pld_w0);
} else {
bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
BFA_PL_EID_RX,
(u16) fcxp_rsp->rsp_len,
&fcxp_rsp->fchs);
}
} else {
bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_RX,
(u16) fcxp_rsp->rsp_len, &fcxp_rsp->fchs);
}
}
/*
* Handler to resume sending fcxp when space in available in cpe queue.
*/
static void
bfa_fcxp_qresume(void *cbarg)
{
struct bfa_fcxp_s *fcxp = cbarg;
struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
struct bfi_fcxp_send_req_s *send_req;
fcxp->reqq_waiting = BFA_FALSE;
send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
bfa_fcxp_queue(fcxp, send_req);
}
/*
* Queue fcxp send request to foimrware.
*/
static void
bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req)
{
struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info;
struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info;
struct bfa_rport_s *rport = reqi->bfa_rport;
bfi_h2i_set(send_req->mh, BFI_MC_FCXP, BFI_FCXP_H2I_SEND_REQ,
bfa_lpuid(bfa));
send_req->fcxp_tag = cpu_to_be16(fcxp->fcxp_tag);
if (rport) {
send_req->rport_fw_hndl = rport->fw_handle;
send_req->max_frmsz = cpu_to_be16(rport->rport_info.max_frmsz);
if (send_req->max_frmsz == 0)
send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
} else {
send_req->rport_fw_hndl = 0;
send_req->max_frmsz = cpu_to_be16(FC_MAX_PDUSZ);
}
send_req->vf_id = cpu_to_be16(reqi->vf_id);
send_req->lp_tag = reqi->lp_tag;
send_req->class = reqi->class;
send_req->rsp_timeout = rspi->rsp_timeout;
send_req->cts = reqi->cts;
send_req->fchs = reqi->fchs;
send_req->req_len = cpu_to_be32(reqi->req_tot_len);
send_req->rsp_maxlen = cpu_to_be32(rspi->rsp_maxlen);
/*
* setup req sgles
*/
if (fcxp->use_ireqbuf == 1) {
hal_fcxp_set_local_sges(send_req->req_sge, reqi->req_tot_len,
BFA_FCXP_REQ_PLD_PA(fcxp));
} else {
if (fcxp->nreq_sgles > 0) {
WARN_ON(fcxp->nreq_sgles != 1);
hal_fcxp_set_local_sges(send_req->req_sge,
reqi->req_tot_len,
fcxp->req_sga_cbfn(fcxp->caller,
0));
} else {
WARN_ON(reqi->req_tot_len != 0);
hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0);
}
}
/*
* setup rsp sgles
*/
if (fcxp->use_irspbuf == 1) {
WARN_ON(rspi->rsp_maxlen > BFA_FCXP_MAX_LBUF_SZ);
hal_fcxp_set_local_sges(send_req->rsp_sge, rspi->rsp_maxlen,
BFA_FCXP_RSP_PLD_PA(fcxp));
} else {
if (fcxp->nrsp_sgles > 0) {
WARN_ON(fcxp->nrsp_sgles != 1);
hal_fcxp_set_local_sges(send_req->rsp_sge,
rspi->rsp_maxlen,
fcxp->rsp_sga_cbfn(fcxp->caller,
0));
} else {
WARN_ON(rspi->rsp_maxlen != 0);
hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0);
}
}
hal_fcxp_tx_plog(bfa, reqi->req_tot_len, fcxp, &reqi->fchs);
bfa_reqq_produce(bfa, BFA_REQQ_FCXP);
bfa_trc(bfa, bfa_reqq_pi(bfa, BFA_REQQ_FCXP));
bfa_trc(bfa, bfa_reqq_ci(bfa, BFA_REQQ_FCXP));
}
/*
* Allocate an FCXP instance to send a response or to send a request
* that has a response. Request/response buffers are allocated by caller.
*
* @param[in] bfa BFA bfa instance
* @param[in] nreq_sgles Number of SG elements required for request
* buffer. 0, if fcxp internal buffers are used.
* Use bfa_fcxp_get_reqbuf() to get the
* internal req buffer.
* @param[in] req_sgles SG elements describing request buffer. Will be
* copied in by BFA and hence can be freed on
* return from this function.
* @param[in] get_req_sga function ptr to be called to get a request SG
* Address (given the sge index).
* @param[in] get_req_sglen function ptr to be called to get a request SG
* len (given the sge index).
* @param[in] get_rsp_sga function ptr to be called to get a response SG
* Address (given the sge index).
* @param[in] get_rsp_sglen function ptr to be called to get a response SG
* len (given the sge index).
*
* @return FCXP instance. NULL on failure.
*/
struct bfa_fcxp_s *
bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
bfa_fcxp_get_sglen_t req_sglen_cbfn,
bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
{
struct bfa_fcxp_s *fcxp = NULL;
WARN_ON(bfa == NULL);
fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa));
if (fcxp == NULL)
return NULL;
bfa_trc(bfa, fcxp->fcxp_tag);
bfa_fcxp_init(fcxp, caller, bfa, nreq_sgles, nrsp_sgles, req_sga_cbfn,
req_sglen_cbfn, rsp_sga_cbfn, rsp_sglen_cbfn);
return fcxp;
}
/*
* Get the internal request buffer pointer
*
* @param[in] fcxp BFA fcxp pointer
*
* @return pointer to the internal request buffer
*/
void *
bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp)
{
struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
void *reqbuf;
WARN_ON(fcxp->use_ireqbuf != 1);
reqbuf = ((u8 *)mod->req_pld_list_kva) +
fcxp->fcxp_tag * mod->req_pld_sz;
return reqbuf;
}
u32
bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp)
{
struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
return mod->req_pld_sz;
}
/*
* Get the internal response buffer pointer
*
* @param[in] fcxp BFA fcxp pointer
*
* @return pointer to the internal request buffer
*/
void *
bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp)
{
struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
void *rspbuf;
WARN_ON(fcxp->use_irspbuf != 1);
rspbuf = ((u8 *)mod->rsp_pld_list_kva) +
fcxp->fcxp_tag * mod->rsp_pld_sz;
return rspbuf;
}
/*
* Free the BFA FCXP
*
* @param[in] fcxp BFA fcxp pointer
*
* @return void
*/
void
bfa_fcxp_free(struct bfa_fcxp_s *fcxp)
{
struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
WARN_ON(fcxp == NULL);
bfa_trc(mod->bfa, fcxp->fcxp_tag);
bfa_fcxp_put(fcxp);
}
/*
* Send a FCXP request
*
* @param[in] fcxp BFA fcxp pointer
* @param[in] rport BFA rport pointer. Could be left NULL for WKA rports
* @param[in] vf_id virtual Fabric ID
* @param[in] lp_tag lport tag
* @param[in] cts use Continuous sequence
* @param[in] cos fc Class of Service
* @param[in] reqlen request length, does not include FCHS length
* @param[in] fchs fc Header Pointer. The header content will be copied
* in by BFA.
*
* @param[in] cbfn call back function to be called on receiving
* the response
* @param[in] cbarg arg for cbfn
* @param[in] rsp_timeout
* response timeout
*
* @return bfa_status_t
*/
void
bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport,
u16 vf_id, u8 lp_tag, bfa_boolean_t cts, enum fc_cos cos,
u32 reqlen, struct fchs_s *fchs, bfa_cb_fcxp_send_t cbfn,
void *cbarg, u32 rsp_maxlen, u8 rsp_timeout)
{
struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info;
struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info;
struct bfi_fcxp_send_req_s *send_req;
bfa_trc(bfa, fcxp->fcxp_tag);
/*
* setup request/response info
*/
reqi->bfa_rport = rport;
reqi->vf_id = vf_id;
reqi->lp_tag = lp_tag;
reqi->class = cos;
rspi->rsp_timeout = rsp_timeout;
reqi->cts = cts;
reqi->fchs = *fchs;
reqi->req_tot_len = reqlen;
rspi->rsp_maxlen = rsp_maxlen;
fcxp->send_cbfn = cbfn ? cbfn : bfa_fcxp_null_comp;
fcxp->send_cbarg = cbarg;
/*
* If no room in CPE queue, wait for space in request queue
*/
send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
if (!send_req) {
bfa_trc(bfa, fcxp->fcxp_tag);
fcxp->reqq_waiting = BFA_TRUE;
bfa_reqq_wait(bfa, BFA_REQQ_FCXP, &fcxp->reqq_wqe);
return;
}
bfa_fcxp_queue(fcxp, send_req);
}
/*
* Abort a BFA FCXP
*
* @param[in] fcxp BFA fcxp pointer
*
* @return void
*/
bfa_status_t
bfa_fcxp_abort(struct bfa_fcxp_s *fcxp)
{
bfa_trc(fcxp->fcxp_mod->bfa, fcxp->fcxp_tag);
WARN_ON(1);
return BFA_STATUS_OK;
}
void
bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *alloc_cbarg,
void *caller, int nreq_sgles,
int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
bfa_fcxp_get_sglen_t req_sglen_cbfn,
bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
WARN_ON(!list_empty(&mod->fcxp_free_q));
wqe->alloc_cbfn = alloc_cbfn;
wqe->alloc_cbarg = alloc_cbarg;
wqe->caller = caller;
wqe->bfa = bfa;
wqe->nreq_sgles = nreq_sgles;
wqe->nrsp_sgles = nrsp_sgles;
wqe->req_sga_cbfn = req_sga_cbfn;
wqe->req_sglen_cbfn = req_sglen_cbfn;
wqe->rsp_sga_cbfn = rsp_sga_cbfn;
wqe->rsp_sglen_cbfn = rsp_sglen_cbfn;
list_add_tail(&wqe->qe, &mod->wait_q);
}
void
bfa_fcxp_walloc_cancel(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
WARN_ON(!bfa_q_is_on_q(&mod->wait_q, wqe));
list_del(&wqe->qe);
}
void
bfa_fcxp_discard(struct bfa_fcxp_s *fcxp)
{
/*
* If waiting for room in request queue, cancel reqq wait
* and free fcxp.
*/
if (fcxp->reqq_waiting) {
fcxp->reqq_waiting = BFA_FALSE;
bfa_reqq_wcancel(&fcxp->reqq_wqe);
bfa_fcxp_free(fcxp);
return;
}
fcxp->send_cbfn = bfa_fcxp_null_comp;
}
void
bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
{
switch (msg->mhdr.msg_id) {
case BFI_FCXP_I2H_SEND_RSP:
hal_fcxp_send_comp(bfa, (struct bfi_fcxp_send_rsp_s *) msg);
break;
default:
bfa_trc(bfa, msg->mhdr.msg_id);
WARN_ON(1);
}
}
u32
bfa_fcxp_get_maxrsp(struct bfa_s *bfa)
{
struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
return mod->rsp_pld_sz;
}
/*
* BFA LPS state machine functions
*/
/*
* Init state -- no login
*/
static void
bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_LOGIN:
if (bfa_reqq_full(lps->bfa, lps->reqq)) {
bfa_sm_set_state(lps, bfa_lps_sm_loginwait);
bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
} else {
bfa_sm_set_state(lps, bfa_lps_sm_login);
bfa_lps_send_login(lps);
}
if (lps->fdisc)
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0, "FDISC Request");
else
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0, "FLOGI Request");
break;
case BFA_LPS_SM_LOGOUT:
bfa_lps_logout_comp(lps);
break;
case BFA_LPS_SM_DELETE:
bfa_lps_free(lps);
break;
case BFA_LPS_SM_RX_CVL:
case BFA_LPS_SM_OFFLINE:
break;
case BFA_LPS_SM_FWRSP:
/*
* Could happen when fabric detects loopback and discards
* the lps request. Fw will eventually sent out the timeout
* Just ignore
*/
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* login is in progress -- awaiting response from firmware
*/
static void
bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_FWRSP:
if (lps->status == BFA_STATUS_OK) {
bfa_sm_set_state(lps, bfa_lps_sm_online);
if (lps->fdisc)
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0, "FDISC Accept");
else
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0, "FLOGI Accept");
/* If N2N, send the assigned PID to FW */
bfa_trc(lps->bfa, lps->fport);
bfa_trc(lps->bfa, lps->lp_pid);
if (!lps->fport && lps->lp_pid)
bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
} else {
bfa_sm_set_state(lps, bfa_lps_sm_init);
if (lps->fdisc)
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0,
"FDISC Fail (RJT or timeout)");
else
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGIN, 0,
"FLOGI Fail (RJT or timeout)");
}
bfa_lps_login_comp(lps);
break;
case BFA_LPS_SM_OFFLINE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
break;
case BFA_LPS_SM_SET_N2N_PID:
bfa_trc(lps->bfa, lps->fport);
bfa_trc(lps->bfa, lps->lp_pid);
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* login pending - awaiting space in request queue
*/
static void
bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_RESUME:
bfa_sm_set_state(lps, bfa_lps_sm_login);
break;
case BFA_LPS_SM_OFFLINE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
bfa_reqq_wcancel(&lps->wqe);
break;
case BFA_LPS_SM_RX_CVL:
/*
* Login was not even sent out; so when getting out
* of this state, it will appear like a login retry
* after Clear virtual link
*/
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* login complete
*/
static void
bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_LOGOUT:
if (bfa_reqq_full(lps->bfa, lps->reqq)) {
bfa_sm_set_state(lps, bfa_lps_sm_logowait);
bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
} else {
bfa_sm_set_state(lps, bfa_lps_sm_logout);
bfa_lps_send_logout(lps);
}
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGO, 0, "Logout");
break;
case BFA_LPS_SM_RX_CVL:
bfa_sm_set_state(lps, bfa_lps_sm_init);
/* Let the vport module know about this event */
bfa_lps_cvl_event(lps);
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
break;
case BFA_LPS_SM_SET_N2N_PID:
if (bfa_reqq_full(lps->bfa, lps->reqq)) {
bfa_sm_set_state(lps, bfa_lps_sm_online_n2n_pid_wait);
bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe);
} else
bfa_lps_send_set_n2n_pid(lps);
break;
case BFA_LPS_SM_OFFLINE:
case BFA_LPS_SM_DELETE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* login complete
*/
static void
bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_RESUME:
bfa_sm_set_state(lps, bfa_lps_sm_online);
bfa_lps_send_set_n2n_pid(lps);
break;
case BFA_LPS_SM_LOGOUT:
bfa_sm_set_state(lps, bfa_lps_sm_logowait);
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_LOGO, 0, "Logout");
break;
case BFA_LPS_SM_RX_CVL:
bfa_sm_set_state(lps, bfa_lps_sm_init);
bfa_reqq_wcancel(&lps->wqe);
/* Let the vport module know about this event */
bfa_lps_cvl_event(lps);
bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
break;
case BFA_LPS_SM_OFFLINE:
case BFA_LPS_SM_DELETE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
bfa_reqq_wcancel(&lps->wqe);
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* logout in progress - awaiting firmware response
*/
static void
bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_FWRSP:
bfa_sm_set_state(lps, bfa_lps_sm_init);
bfa_lps_logout_comp(lps);
break;
case BFA_LPS_SM_OFFLINE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* logout pending -- awaiting space in request queue
*/
static void
bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event event)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, event);
switch (event) {
case BFA_LPS_SM_RESUME:
bfa_sm_set_state(lps, bfa_lps_sm_logout);
bfa_lps_send_logout(lps);
break;
case BFA_LPS_SM_OFFLINE:
bfa_sm_set_state(lps, bfa_lps_sm_init);
bfa_reqq_wcancel(&lps->wqe);
break;
default:
bfa_sm_fault(lps->bfa, event);
}
}
/*
* lps_pvt BFA LPS private functions
*/
/*
* return memory requirement
*/
static void
bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
u32 *dm_len)
{
if (cfg->drvcfg.min_cfg)
*ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MIN_LPORTS;
else
*ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MAX_LPORTS;
}
/*
* bfa module attach at initialization time
*/
static void
bfa_lps_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
int i;
memset(mod, 0, sizeof(struct bfa_lps_mod_s));
mod->num_lps = BFA_LPS_MAX_LPORTS;
if (cfg->drvcfg.min_cfg)
mod->num_lps = BFA_LPS_MIN_LPORTS;
else
mod->num_lps = BFA_LPS_MAX_LPORTS;
mod->lps_arr = lps = (struct bfa_lps_s *) bfa_meminfo_kva(meminfo);
bfa_meminfo_kva(meminfo) += mod->num_lps * sizeof(struct bfa_lps_s);
INIT_LIST_HEAD(&mod->lps_free_q);
INIT_LIST_HEAD(&mod->lps_active_q);
for (i = 0; i < mod->num_lps; i++, lps++) {
lps->bfa = bfa;
lps->lp_tag = (u8) i;
lps->reqq = BFA_REQQ_LPS;
bfa_reqq_winit(&lps->wqe, bfa_lps_reqq_resume, lps);
list_add_tail(&lps->qe, &mod->lps_free_q);
}
}
static void
bfa_lps_detach(struct bfa_s *bfa)
{
}
static void
bfa_lps_start(struct bfa_s *bfa)
{
}
static void
bfa_lps_stop(struct bfa_s *bfa)
{
}
/*
* IOC in disabled state -- consider all lps offline
*/
static void
bfa_lps_iocdisable(struct bfa_s *bfa)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
struct list_head *qe, *qen;
list_for_each_safe(qe, qen, &mod->lps_active_q) {
lps = (struct bfa_lps_s *) qe;
bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE);
}
}
/*
* Firmware login response
*/
static void
bfa_lps_login_rsp(struct bfa_s *bfa, struct bfi_lps_login_rsp_s *rsp)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
WARN_ON(rsp->lp_tag >= mod->num_lps);
lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag);
lps->status = rsp->status;
switch (rsp->status) {
case BFA_STATUS_OK:
lps->fport = rsp->f_port;
if (lps->fport)
lps->lp_pid = rsp->lp_pid;
lps->npiv_en = rsp->npiv_en;
lps->pr_bbcred = be16_to_cpu(rsp->bb_credit);
lps->pr_pwwn = rsp->port_name;
lps->pr_nwwn = rsp->node_name;
lps->auth_req = rsp->auth_req;
lps->lp_mac = rsp->lp_mac;
lps->brcd_switch = rsp->brcd_switch;
lps->fcf_mac = rsp->fcf_mac;
break;
case BFA_STATUS_FABRIC_RJT:
lps->lsrjt_rsn = rsp->lsrjt_rsn;
lps->lsrjt_expl = rsp->lsrjt_expl;
break;
case BFA_STATUS_EPROTOCOL:
lps->ext_status = rsp->ext_status;
break;
default:
/* Nothing to do with other status */
break;
}
bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
}
/*
* Firmware logout response
*/
static void
bfa_lps_logout_rsp(struct bfa_s *bfa, struct bfi_lps_logout_rsp_s *rsp)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
WARN_ON(rsp->lp_tag >= mod->num_lps);
lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag);
bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
}
/*
* Firmware received a Clear virtual link request (for FCoE)
*/
static void
bfa_lps_rx_cvl_event(struct bfa_s *bfa, struct bfi_lps_cvl_event_s *cvl)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
lps = BFA_LPS_FROM_TAG(mod, cvl->lp_tag);
bfa_sm_send_event(lps, BFA_LPS_SM_RX_CVL);
}
/*
* Space is available in request queue, resume queueing request to firmware.
*/
static void
bfa_lps_reqq_resume(void *lps_arg)
{
struct bfa_lps_s *lps = lps_arg;
bfa_sm_send_event(lps, BFA_LPS_SM_RESUME);
}
/*
* lps is freed -- triggered by vport delete
*/
static void
bfa_lps_free(struct bfa_lps_s *lps)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(lps->bfa);
lps->lp_pid = 0;
list_del(&lps->qe);
list_add_tail(&lps->qe, &mod->lps_free_q);
}
/*
* send login request to firmware
*/
static void
bfa_lps_send_login(struct bfa_lps_s *lps)
{
struct bfi_lps_login_req_s *m;
m = bfa_reqq_next(lps->bfa, lps->reqq);
WARN_ON(!m);
bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGIN_REQ,
bfa_lpuid(lps->bfa));
m->lp_tag = lps->lp_tag;
m->alpa = lps->alpa;
m->pdu_size = cpu_to_be16(lps->pdusz);
m->pwwn = lps->pwwn;
m->nwwn = lps->nwwn;
m->fdisc = lps->fdisc;
m->auth_en = lps->auth_en;
bfa_reqq_produce(lps->bfa, lps->reqq);
}
/*
* send logout request to firmware
*/
static void
bfa_lps_send_logout(struct bfa_lps_s *lps)
{
struct bfi_lps_logout_req_s *m;
m = bfa_reqq_next(lps->bfa, lps->reqq);
WARN_ON(!m);
bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_LOGOUT_REQ,
bfa_lpuid(lps->bfa));
m->lp_tag = lps->lp_tag;
m->port_name = lps->pwwn;
bfa_reqq_produce(lps->bfa, lps->reqq);
}
/*
* send n2n pid set request to firmware
*/
static void
bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps)
{
struct bfi_lps_n2n_pid_req_s *m;
m = bfa_reqq_next(lps->bfa, lps->reqq);
WARN_ON(!m);
bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_N2N_PID_REQ,
bfa_lpuid(lps->bfa));
m->lp_tag = lps->lp_tag;
m->lp_pid = lps->lp_pid;
bfa_reqq_produce(lps->bfa, lps->reqq);
}
/*
* Indirect login completion handler for non-fcs
*/
static void
bfa_lps_login_comp_cb(void *arg, bfa_boolean_t complete)
{
struct bfa_lps_s *lps = arg;
if (!complete)
return;
if (lps->fdisc)
bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
else
bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
}
/*
* Login completion handler -- direct call for fcs, queue for others
*/
static void
bfa_lps_login_comp(struct bfa_lps_s *lps)
{
if (!lps->bfa->fcs) {
bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_login_comp_cb,
lps);
return;
}
if (lps->fdisc)
bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status);
else
bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status);
}
/*
* Indirect logout completion handler for non-fcs
*/
static void
bfa_lps_logout_comp_cb(void *arg, bfa_boolean_t complete)
{
struct bfa_lps_s *lps = arg;
if (!complete)
return;
if (lps->fdisc)
bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
}
/*
* Logout completion handler -- direct call for fcs, queue for others
*/
static void
bfa_lps_logout_comp(struct bfa_lps_s *lps)
{
if (!lps->bfa->fcs) {
bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_logout_comp_cb,
lps);
return;
}
if (lps->fdisc)
bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
}
/*
* Clear virtual link completion handler for non-fcs
*/
static void
bfa_lps_cvl_event_cb(void *arg, bfa_boolean_t complete)
{
struct bfa_lps_s *lps = arg;
if (!complete)
return;
/* Clear virtual link to base port will result in link down */
if (lps->fdisc)
bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
}
/*
* Received Clear virtual link event --direct call for fcs,
* queue for others
*/
static void
bfa_lps_cvl_event(struct bfa_lps_s *lps)
{
if (!lps->bfa->fcs) {
bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_cvl_event_cb,
lps);
return;
}
/* Clear virtual link to base port will result in link down */
if (lps->fdisc)
bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
}
/*
* lps_public BFA LPS public functions
*/
u32
bfa_lps_get_max_vport(struct bfa_s *bfa)
{
if (bfa_ioc_devid(&bfa->ioc) == BFA_PCI_DEVICE_ID_CT)
return BFA_LPS_MAX_VPORTS_SUPP_CT;
else
return BFA_LPS_MAX_VPORTS_SUPP_CB;
}
/*
* Allocate a lport srvice tag.
*/
struct bfa_lps_s *
bfa_lps_alloc(struct bfa_s *bfa)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps = NULL;
bfa_q_deq(&mod->lps_free_q, &lps);
if (lps == NULL)
return NULL;
list_add_tail(&lps->qe, &mod->lps_active_q);
bfa_sm_set_state(lps, bfa_lps_sm_init);
return lps;
}
/*
* Free lport service tag. This can be called anytime after an alloc.
* No need to wait for any pending login/logout completions.
*/
void
bfa_lps_delete(struct bfa_lps_s *lps)
{
bfa_sm_send_event(lps, BFA_LPS_SM_DELETE);
}
/*
* Initiate a lport login.
*/
void
bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, u16 pdusz,
wwn_t pwwn, wwn_t nwwn, bfa_boolean_t auth_en)
{
lps->uarg = uarg;
lps->alpa = alpa;
lps->pdusz = pdusz;
lps->pwwn = pwwn;
lps->nwwn = nwwn;
lps->fdisc = BFA_FALSE;
lps->auth_en = auth_en;
bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
}
/*
* Initiate a lport fdisc login.
*/
void
bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn,
wwn_t nwwn)
{
lps->uarg = uarg;
lps->alpa = 0;
lps->pdusz = pdusz;
lps->pwwn = pwwn;
lps->nwwn = nwwn;
lps->fdisc = BFA_TRUE;
lps->auth_en = BFA_FALSE;
bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN);
}
/*
* Initiate a lport FDSIC logout.
*/
void
bfa_lps_fdisclogo(struct bfa_lps_s *lps)
{
bfa_sm_send_event(lps, BFA_LPS_SM_LOGOUT);
}
/*
* Return lport services tag given the pid
*/
u8
bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
struct bfa_lps_s *lps;
int i;
for (i = 0, lps = mod->lps_arr; i < mod->num_lps; i++, lps++) {
if (lps->lp_pid == pid)
return lps->lp_tag;
}
/* Return base port tag anyway */
return 0;
}
/*
* return port id assigned to the base lport
*/
u32
bfa_lps_get_base_pid(struct bfa_s *bfa)
{
struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
return BFA_LPS_FROM_TAG(mod, 0)->lp_pid;
}
/*
* Set PID in case of n2n (which is assigned during PLOGI)
*/
void
bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, uint32_t n2n_pid)
{
bfa_trc(lps->bfa, lps->lp_tag);
bfa_trc(lps->bfa, n2n_pid);
lps->lp_pid = n2n_pid;
bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID);
}
/*
* LPS firmware message class handler.
*/
void
bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
{
union bfi_lps_i2h_msg_u msg;
bfa_trc(bfa, m->mhdr.msg_id);
msg.msg = m;
switch (m->mhdr.msg_id) {
case BFI_LPS_H2I_LOGIN_RSP:
bfa_lps_login_rsp(bfa, msg.login_rsp);
break;
case BFI_LPS_H2I_LOGOUT_RSP:
bfa_lps_logout_rsp(bfa, msg.logout_rsp);
break;
case BFI_LPS_H2I_CVL_EVENT:
bfa_lps_rx_cvl_event(bfa, msg.cvl_event);
break;
default:
bfa_trc(bfa, m->mhdr.msg_id);
WARN_ON(1);
}
}
/*
* FC PORT state machine functions
*/
static void
bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
/*
* Start event after IOC is configured and BFA is started.
*/
fcport->use_flash_cfg = BFA_TRUE;
if (bfa_fcport_send_enable(fcport)) {
bfa_trc(fcport->bfa, BFA_TRUE);
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
} else {
bfa_trc(fcport->bfa, BFA_FALSE);
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
}
break;
case BFA_FCPORT_SM_ENABLE:
/*
* Port is persistently configured to be in enabled state. Do
* not change state. Port enabling is done when START event is
* received.
*/
break;
case BFA_FCPORT_SM_DISABLE:
/*
* If a port is persistently configured to be disabled, the
* first event will a port disable request.
*/
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_QRESUME:
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
bfa_fcport_send_enable(fcport);
break;
case BFA_FCPORT_SM_STOP:
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_ENABLE:
/*
* Already enable is in progress.
*/
break;
case BFA_FCPORT_SM_DISABLE:
/*
* Just send disable request to firmware when room becomes
* available in request queue.
*/
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port disabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/*
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_FWRSP:
case BFA_FCPORT_SM_LINKDOWN:
bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
break;
case BFA_FCPORT_SM_LINKUP:
bfa_fcport_update_linkinfo(fcport);
bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
WARN_ON(!fcport->event_cbfn);
bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
break;
case BFA_FCPORT_SM_ENABLE:
/*
* Already being enabled.
*/
break;
case BFA_FCPORT_SM_DISABLE:
if (bfa_fcport_send_disable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_disabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port disabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_LINKUP:
bfa_fcport_update_linkinfo(fcport);
bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
WARN_ON(!fcport->event_cbfn);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkup");
if (!bfa_ioc_get_fcmode(&fcport->bfa->ioc)) {
bfa_trc(fcport->bfa,
pevent->link_state.vc_fcf.fcf.fipenabled);
bfa_trc(fcport->bfa,
pevent->link_state.vc_fcf.fcf.fipfailed);
if (pevent->link_state.vc_fcf.fcf.fipfailed)
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_FIP_FCF_DISC, 0,
"FIP FCF Discovery Failed");
else
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_FIP_FCF_DISC, 0,
"FIP FCF Discovered");
}
bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE);
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port online: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_LINKDOWN:
/*
* Possible to get link down event.
*/
break;
case BFA_FCPORT_SM_ENABLE:
/*
* Already enabled.
*/
break;
case BFA_FCPORT_SM_DISABLE:
if (bfa_fcport_send_disable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_disabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port disabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_ENABLE:
/*
* Already enabled.
*/
break;
case BFA_FCPORT_SM_DISABLE:
if (bfa_fcport_send_disable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_disabling_qwait);
bfa_fcport_reset_linkinfo(fcport);
bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port offline: WWN = %s\n", pwwn_buf);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port disabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_LINKDOWN:
bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
bfa_fcport_reset_linkinfo(fcport);
bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkdown");
wwn2str(pwwn_buf, fcport->pwwn);
if (BFA_PORT_IS_DISABLED(fcport->bfa))
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port offline: WWN = %s\n", pwwn_buf);
else
BFA_LOG(KERN_ERR, bfad, bfa_log_level,
"Base port (WWN = %s) "
"lost fabric connectivity\n", pwwn_buf);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
bfa_fcport_reset_linkinfo(fcport);
wwn2str(pwwn_buf, fcport->pwwn);
if (BFA_PORT_IS_DISABLED(fcport->bfa))
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port offline: WWN = %s\n", pwwn_buf);
else
BFA_LOG(KERN_ERR, bfad, bfa_log_level,
"Base port (WWN = %s) "
"lost fabric connectivity\n", pwwn_buf);
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
bfa_fcport_reset_linkinfo(fcport);
bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE);
wwn2str(pwwn_buf, fcport->pwwn);
if (BFA_PORT_IS_DISABLED(fcport->bfa))
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port offline: WWN = %s\n", pwwn_buf);
else
BFA_LOG(KERN_ERR, bfad, bfa_log_level,
"Base port (WWN = %s) "
"lost fabric connectivity\n", pwwn_buf);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_QRESUME:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
bfa_fcport_send_disable(fcport);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
bfa_reqq_wcancel(&fcport->reqq_wait);
break;
case BFA_FCPORT_SM_ENABLE:
bfa_sm_set_state(fcport, bfa_fcport_sm_toggling_qwait);
break;
case BFA_FCPORT_SM_DISABLE:
/*
* Already being disabled.
*/
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/*
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
bfa_reqq_wcancel(&fcport->reqq_wait);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_QRESUME:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
bfa_fcport_send_disable(fcport);
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
bfa_reqq_wcancel(&fcport->reqq_wait);
break;
case BFA_FCPORT_SM_ENABLE:
break;
case BFA_FCPORT_SM_DISABLE:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling_qwait);
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/*
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
bfa_reqq_wcancel(&fcport->reqq_wait);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_FWRSP:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
break;
case BFA_FCPORT_SM_DISABLE:
/*
* Already being disabled.
*/
break;
case BFA_FCPORT_SM_ENABLE:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port enabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/*
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
char pwwn_buf[BFA_STRING_32];
struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad;
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
/*
* Ignore start event for a port that is disabled.
*/
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_ENABLE:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
wwn2str(pwwn_buf, fcport->pwwn);
BFA_LOG(KERN_INFO, bfad, bfa_log_level,
"Base port enabled: WWN = %s\n", pwwn_buf);
break;
case BFA_FCPORT_SM_DISABLE:
/*
* Already disabled.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
break;
default:
/*
* Ignore all other events.
*/
;
}
}
/*
* Port is enabled. IOC is down/failed.
*/
static void
bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
break;
default:
/*
* Ignore all events.
*/
;
}
}
/*
* Port is disabled. IOC is down/failed.
*/
static void
bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
break;
case BFA_FCPORT_SM_ENABLE:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
/*
* Ignore all events.
*/
;
}
}
/*
* Link state is down
*/
static void
bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKUP:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is waiting for down notification
*/
static void
bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKUP:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is waiting for down notification and there is a pending up
*/
static void
bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf);
bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is up
*/
static void
bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is waiting for up notification
*/
static void
bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is waiting for up notification and there is a pending down
*/
static void
bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKUP:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_up_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/*
* Link state is waiting for up notification and there are pending down and up
*/
static void
bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf);
bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
static void
__bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete)
{
struct bfa_fcport_ln_s *ln = cbarg;
if (complete)
ln->fcport->event_cbfn(ln->fcport->event_cbarg, ln->ln_event);
else
bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
}
/*
* Send SCN notification to upper layers.
* trunk - false if caller is fcport to ignore fcport event in trunked mode
*/
static void
bfa_fcport_scn(struct bfa_fcport_s *fcport, enum bfa_port_linkstate event,
bfa_boolean_t trunk)
{
if (fcport->cfg.trunked && !trunk)
return;
switch (event) {
case BFA_PORT_LINKUP:
bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKUP);
break;
case BFA_PORT_LINKDOWN:
bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKDOWN);
break;
default:
WARN_ON(1);
}
}
static void
bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln, enum bfa_port_linkstate event)
{
struct bfa_fcport_s *fcport = ln->fcport;
if (fcport->bfa->fcs) {
fcport->event_cbfn(fcport->event_cbarg, event);
bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION);
} else {
ln->ln_event = event;
bfa_cb_queue(fcport->bfa, &ln->ln_qe,
__bfa_cb_fcport_event, ln);
}
}
#define FCPORT_STATS_DMA_SZ (BFA_ROUNDUP(sizeof(union bfa_fcport_stats_u), \
BFA_CACHELINE_SZ))
static void
bfa_fcport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
u32 *dm_len)
{
*dm_len += FCPORT_STATS_DMA_SZ;
}
static void
bfa_fcport_qresume(void *cbarg)
{
struct bfa_fcport_s *fcport = cbarg;
bfa_sm_send_event(fcport, BFA_FCPORT_SM_QRESUME);
}
static void
bfa_fcport_mem_claim(struct bfa_fcport_s *fcport, struct bfa_meminfo_s *meminfo)
{
u8 *dm_kva;
u64 dm_pa;
dm_kva = bfa_meminfo_dma_virt(meminfo);
dm_pa = bfa_meminfo_dma_phys(meminfo);
fcport->stats_kva = dm_kva;
fcport->stats_pa = dm_pa;
fcport->stats = (union bfa_fcport_stats_u *) dm_kva;
dm_kva += FCPORT_STATS_DMA_SZ;
dm_pa += FCPORT_STATS_DMA_SZ;
bfa_meminfo_dma_virt(meminfo) = dm_kva;
bfa_meminfo_dma_phys(meminfo) = dm_pa;
}
/*
* Memory initialization.
*/
static void
bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
struct bfa_port_cfg_s *port_cfg = &fcport->cfg;
struct bfa_fcport_ln_s *ln = &fcport->ln;
struct timeval tv;
memset(fcport, 0, sizeof(struct bfa_fcport_s));
fcport->bfa = bfa;
ln->fcport = fcport;
bfa_fcport_mem_claim(fcport, meminfo);
bfa_sm_set_state(fcport, bfa_fcport_sm_uninit);
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn);
/*
* initialize time stamp for stats reset
*/
do_gettimeofday(&tv);
fcport->stats_reset_time = tv.tv_sec;
/*
* initialize and set default configuration
*/
port_cfg->topology = BFA_PORT_TOPOLOGY_P2P;
port_cfg->speed = BFA_PORT_SPEED_AUTO;
port_cfg->trunked = BFA_FALSE;
port_cfg->maxfrsize = 0;
port_cfg->trl_def_speed = BFA_PORT_SPEED_1GBPS;
bfa_reqq_winit(&fcport->reqq_wait, bfa_fcport_qresume, fcport);
}
static void
bfa_fcport_detach(struct bfa_s *bfa)
{
}
/*
* Called when IOC is ready.
*/
static void
bfa_fcport_start(struct bfa_s *bfa)
{
bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_START);
}
/*
* Called before IOC is stopped.
*/
static void
bfa_fcport_stop(struct bfa_s *bfa)
{
bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_STOP);
bfa_trunk_iocdisable(bfa);
}
/*
* Called when IOC failure is detected.
*/
static void
bfa_fcport_iocdisable(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_sm_send_event(fcport, BFA_FCPORT_SM_HWFAIL);
bfa_trunk_iocdisable(bfa);
}
static void
bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport)
{
struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event;
struct bfa_fcport_trunk_s *trunk = &fcport->trunk;
fcport->speed = pevent->link_state.speed;
fcport->topology = pevent->link_state.topology;
if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP)
fcport->myalpa = 0;
/* QoS Details */
fcport->qos_attr = pevent->link_state.qos_attr;
fcport->qos_vc_attr = pevent->link_state.vc_fcf.qos_vc_attr;
/*
* update trunk state if applicable
*/
if (!fcport->cfg.trunked)
trunk->attr.state = BFA_TRUNK_DISABLED;
/* update FCoE specific */
fcport->fcoe_vlan = be16_to_cpu(pevent->link_state.vc_fcf.fcf.vlan);
bfa_trc(fcport->bfa, fcport->speed);
bfa_trc(fcport->bfa, fcport->topology);
}
static void
bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport)
{
fcport->speed = BFA_PORT_SPEED_UNKNOWN;
fcport->topology = BFA_PORT_TOPOLOGY_NONE;
}
/*
* Send port enable message to firmware.
*/
static bfa_boolean_t
bfa_fcport_send_enable(struct bfa_fcport_s *fcport)
{
struct bfi_fcport_enable_req_s *m;
/*
* Increment message tag before queue check, so that responses to old
* requests are discarded.
*/
fcport->msgtag++;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
if (!m) {
bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
&fcport->reqq_wait);
return BFA_FALSE;
}
bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_ENABLE_REQ,
bfa_lpuid(fcport->bfa));
m->nwwn = fcport->nwwn;
m->pwwn = fcport->pwwn;
m->port_cfg = fcport->cfg;
m->msgtag = fcport->msgtag;
m->port_cfg.maxfrsize = cpu_to_be16(fcport->cfg.maxfrsize);
m->use_flash_cfg = fcport->use_flash_cfg;
bfa_dma_be_addr_set(m->stats_dma_addr, fcport->stats_pa);
bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_lo);
bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_hi);
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
return BFA_TRUE;
}
/*
* Send port disable message to firmware.
*/
static bfa_boolean_t
bfa_fcport_send_disable(struct bfa_fcport_s *fcport)
{
struct bfi_fcport_req_s *m;
/*
* Increment message tag before queue check, so that responses to old
* requests are discarded.
*/
fcport->msgtag++;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
if (!m) {
bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
&fcport->reqq_wait);
return BFA_FALSE;
}
bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_DISABLE_REQ,
bfa_lpuid(fcport->bfa));
m->msgtag = fcport->msgtag;
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
return BFA_TRUE;
}
static void
bfa_fcport_set_wwns(struct bfa_fcport_s *fcport)
{
fcport->pwwn = fcport->bfa->ioc.attr->pwwn;
fcport->nwwn = fcport->bfa->ioc.attr->nwwn;
bfa_trc(fcport->bfa, fcport->pwwn);
bfa_trc(fcport->bfa, fcport->nwwn);
}
static void
bfa_fcport_send_txcredit(void *port_cbarg)
{
struct bfa_fcport_s *fcport = port_cbarg;
struct bfi_fcport_set_svc_params_req_s *m;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
if (!m) {
bfa_trc(fcport->bfa, fcport->cfg.tx_bbcredit);
return;
}
bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ,
bfa_lpuid(fcport->bfa));
m->tx_bbcredit = cpu_to_be16((u16)fcport->cfg.tx_bbcredit);
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
}
static void
bfa_fcport_qos_stats_swap(struct bfa_qos_stats_s *d,
struct bfa_qos_stats_s *s)
{
u32 *dip = (u32 *) d;
__be32 *sip = (__be32 *) s;
int i;
/* Now swap the 32 bit fields */
for (i = 0; i < (sizeof(struct bfa_qos_stats_s)/sizeof(u32)); ++i)
dip[i] = be32_to_cpu(sip[i]);
}
static void
bfa_fcport_fcoe_stats_swap(struct bfa_fcoe_stats_s *d,
struct bfa_fcoe_stats_s *s)
{
u32 *dip = (u32 *) d;
__be32 *sip = (__be32 *) s;
int i;
for (i = 0; i < ((sizeof(struct bfa_fcoe_stats_s))/sizeof(u32));
i = i + 2) {
#ifdef __BIG_ENDIAN
dip[i] = be32_to_cpu(sip[i]);
dip[i + 1] = be32_to_cpu(sip[i + 1]);
#else
dip[i] = be32_to_cpu(sip[i + 1]);
dip[i + 1] = be32_to_cpu(sip[i]);
#endif
}
}
static void
__bfa_cb_fcport_stats_get(void *cbarg, bfa_boolean_t complete)
{
struct bfa_fcport_s *fcport = cbarg;
if (complete) {
if (fcport->stats_status == BFA_STATUS_OK) {
struct timeval tv;
/* Swap FC QoS or FCoE stats */
if (bfa_ioc_get_fcmode(&fcport->bfa->ioc)) {
bfa_fcport_qos_stats_swap(
&fcport->stats_ret->fcqos,
&fcport->stats->fcqos);
} else {
bfa_fcport_fcoe_stats_swap(
&fcport->stats_ret->fcoe,
&fcport->stats->fcoe);
do_gettimeofday(&tv);
fcport->stats_ret->fcoe.secs_reset =
tv.tv_sec - fcport->stats_reset_time;
}
}
fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status);
} else {
fcport->stats_busy = BFA_FALSE;
fcport->stats_status = BFA_STATUS_OK;
}
}
static void
bfa_fcport_stats_get_timeout(void *cbarg)
{
struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
bfa_trc(fcport->bfa, fcport->stats_qfull);
if (fcport->stats_qfull) {
bfa_reqq_wcancel(&fcport->stats_reqq_wait);
fcport->stats_qfull = BFA_FALSE;
}
fcport->stats_status = BFA_STATUS_ETIMER;
bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, __bfa_cb_fcport_stats_get,
fcport);
}
static void
bfa_fcport_send_stats_get(void *cbarg)
{
struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
struct bfi_fcport_req_s *msg;
msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
if (!msg) {
fcport->stats_qfull = BFA_TRUE;
bfa_reqq_winit(&fcport->stats_reqq_wait,
bfa_fcport_send_stats_get, fcport);
bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
&fcport->stats_reqq_wait);
return;
}
fcport->stats_qfull = BFA_FALSE;
memset(msg, 0, sizeof(struct bfi_fcport_req_s));
bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_GET_REQ,
bfa_lpuid(fcport->bfa));
bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
}
static void
__bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete)
{
struct bfa_fcport_s *fcport = cbarg;
if (complete) {
struct timeval tv;
/*
* re-initialize time stamp for stats reset
*/
do_gettimeofday(&tv);
fcport->stats_reset_time = tv.tv_sec;
fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status);
} else {
fcport->stats_busy = BFA_FALSE;
fcport->stats_status = BFA_STATUS_OK;
}
}
static void
bfa_fcport_stats_clr_timeout(void *cbarg)
{
struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
bfa_trc(fcport->bfa, fcport->stats_qfull);
if (fcport->stats_qfull) {
bfa_reqq_wcancel(&fcport->stats_reqq_wait);
fcport->stats_qfull = BFA_FALSE;
}
fcport->stats_status = BFA_STATUS_ETIMER;
bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
__bfa_cb_fcport_stats_clr, fcport);
}
static void
bfa_fcport_send_stats_clear(void *cbarg)
{
struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg;
struct bfi_fcport_req_s *msg;
msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT);
if (!msg) {
fcport->stats_qfull = BFA_TRUE;
bfa_reqq_winit(&fcport->stats_reqq_wait,
bfa_fcport_send_stats_clear, fcport);
bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT,
&fcport->stats_reqq_wait);
return;
}
fcport->stats_qfull = BFA_FALSE;
memset(msg, 0, sizeof(struct bfi_fcport_req_s));
bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_CLEAR_REQ,
bfa_lpuid(fcport->bfa));
bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT);
}
/*
* Handle trunk SCN event from firmware.
*/
static void
bfa_trunk_scn(struct bfa_fcport_s *fcport, struct bfi_fcport_trunk_scn_s *scn)
{
struct bfa_fcport_trunk_s *trunk = &fcport->trunk;
struct bfi_fcport_trunk_link_s *tlink;
struct bfa_trunk_link_attr_s *lattr;
enum bfa_trunk_state state_prev;
int i;
int link_bm = 0;
bfa_trc(fcport->bfa, fcport->cfg.trunked);
WARN_ON(scn->trunk_state != BFA_TRUNK_ONLINE &&
scn->trunk_state != BFA_TRUNK_OFFLINE);
bfa_trc(fcport->bfa, trunk->attr.state);
bfa_trc(fcport->bfa, scn->trunk_state);
bfa_trc(fcport->bfa, scn->trunk_speed);
/*
* Save off new state for trunk attribute query
*/
state_prev = trunk->attr.state;
if (fcport->cfg.trunked && (trunk->attr.state != BFA_TRUNK_DISABLED))
trunk->attr.state = scn->trunk_state;
trunk->attr.speed = scn->trunk_speed;
for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) {
lattr = &trunk->attr.link_attr[i];
tlink = &scn->tlink[i];
lattr->link_state = tlink->state;
lattr->trunk_wwn = tlink->trunk_wwn;
lattr->fctl = tlink->fctl;
lattr->speed = tlink->speed;
lattr->deskew = be32_to_cpu(tlink->deskew);
if (tlink->state == BFA_TRUNK_LINK_STATE_UP) {
fcport->speed = tlink->speed;
fcport->topology = BFA_PORT_TOPOLOGY_P2P;
link_bm |= 1 << i;
}
bfa_trc(fcport->bfa, lattr->link_state);
bfa_trc(fcport->bfa, lattr->trunk_wwn);
bfa_trc(fcport->bfa, lattr->fctl);
bfa_trc(fcport->bfa, lattr->speed);
bfa_trc(fcport->bfa, lattr->deskew);
}
switch (link_bm) {
case 3:
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,1)");
break;
case 2:
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(-,1)");
break;
case 1:
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,-)");
break;
default:
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_TRUNK_SCN, 0, "Trunk down");
}
/*
* Notify upper layers if trunk state changed.
*/
if ((state_prev != trunk->attr.state) ||
(scn->trunk_state == BFA_TRUNK_OFFLINE)) {
bfa_fcport_scn(fcport, (scn->trunk_state == BFA_TRUNK_ONLINE) ?
BFA_PORT_LINKUP : BFA_PORT_LINKDOWN, BFA_TRUE);
}
}
static void
bfa_trunk_iocdisable(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
int i = 0;
/*
* In trunked mode, notify upper layers that link is down
*/
if (fcport->cfg.trunked) {
if (fcport->trunk.attr.state == BFA_TRUNK_ONLINE)
bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_TRUE);
fcport->trunk.attr.state = BFA_TRUNK_OFFLINE;
fcport->trunk.attr.speed = BFA_PORT_SPEED_UNKNOWN;
for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) {
fcport->trunk.attr.link_attr[i].trunk_wwn = 0;
fcport->trunk.attr.link_attr[i].fctl =
BFA_TRUNK_LINK_FCTL_NORMAL;
fcport->trunk.attr.link_attr[i].link_state =
BFA_TRUNK_LINK_STATE_DN_LINKDN;
fcport->trunk.attr.link_attr[i].speed =
BFA_PORT_SPEED_UNKNOWN;
fcport->trunk.attr.link_attr[i].deskew = 0;
}
}
}
/*
* Called to initialize port attributes
*/
void
bfa_fcport_init(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
/*
* Initialize port attributes from IOC hardware data.
*/
bfa_fcport_set_wwns(fcport);
if (fcport->cfg.maxfrsize == 0)
fcport->cfg.maxfrsize = bfa_ioc_maxfrsize(&bfa->ioc);
fcport->cfg.rx_bbcredit = bfa_ioc_rx_bbcredit(&bfa->ioc);
fcport->speed_sup = bfa_ioc_speed_sup(&bfa->ioc);
WARN_ON(!fcport->cfg.maxfrsize);
WARN_ON(!fcport->cfg.rx_bbcredit);
WARN_ON(!fcport->speed_sup);
}
/*
* Firmware message handler.
*/
void
bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
union bfi_fcport_i2h_msg_u i2hmsg;
i2hmsg.msg = msg;
fcport->event_arg.i2hmsg = i2hmsg;
bfa_trc(bfa, msg->mhdr.msg_id);
bfa_trc(bfa, bfa_sm_to_state(hal_port_sm_table, fcport->sm));
switch (msg->mhdr.msg_id) {
case BFI_FCPORT_I2H_ENABLE_RSP:
if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) {
if (fcport->use_flash_cfg) {
fcport->cfg = i2hmsg.penable_rsp->port_cfg;
fcport->cfg.maxfrsize =
cpu_to_be16(fcport->cfg.maxfrsize);
fcport->cfg.path_tov =
cpu_to_be16(fcport->cfg.path_tov);
fcport->cfg.q_depth =
cpu_to_be16(fcport->cfg.q_depth);
if (fcport->cfg.trunked)
fcport->trunk.attr.state =
BFA_TRUNK_OFFLINE;
else
fcport->trunk.attr.state =
BFA_TRUNK_DISABLED;
fcport->use_flash_cfg = BFA_FALSE;
}
bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
}
break;
case BFI_FCPORT_I2H_DISABLE_RSP:
if (fcport->msgtag == i2hmsg.penable_rsp->msgtag)
bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
break;
case BFI_FCPORT_I2H_EVENT:
if (i2hmsg.event->link_state.linkstate == BFA_PORT_LINKUP)
bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKUP);
else
bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKDOWN);
break;
case BFI_FCPORT_I2H_TRUNK_SCN:
bfa_trunk_scn(fcport, i2hmsg.trunk_scn);
break;
case BFI_FCPORT_I2H_STATS_GET_RSP:
/*
* check for timer pop before processing the rsp
*/
if (fcport->stats_busy == BFA_FALSE ||
fcport->stats_status == BFA_STATUS_ETIMER)
break;
bfa_timer_stop(&fcport->timer);
fcport->stats_status = i2hmsg.pstatsget_rsp->status;
bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
__bfa_cb_fcport_stats_get, fcport);
break;
case BFI_FCPORT_I2H_STATS_CLEAR_RSP:
/*
* check for timer pop before processing the rsp
*/
if (fcport->stats_busy == BFA_FALSE ||
fcport->stats_status == BFA_STATUS_ETIMER)
break;
bfa_timer_stop(&fcport->timer);
fcport->stats_status = BFA_STATUS_OK;
bfa_cb_queue(fcport->bfa, &fcport->hcb_qe,
__bfa_cb_fcport_stats_clr, fcport);
break;
case BFI_FCPORT_I2H_ENABLE_AEN:
bfa_sm_send_event(fcport, BFA_FCPORT_SM_ENABLE);
break;
case BFI_FCPORT_I2H_DISABLE_AEN:
bfa_sm_send_event(fcport, BFA_FCPORT_SM_DISABLE);
break;
default:
WARN_ON(1);
break;
}
}
/*
* Registered callback for port events.
*/
void
bfa_fcport_event_register(struct bfa_s *bfa,
void (*cbfn) (void *cbarg,
enum bfa_port_linkstate event),
void *cbarg)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
fcport->event_cbfn = cbfn;
fcport->event_cbarg = cbarg;
}
bfa_status_t
bfa_fcport_enable(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
if (bfa_ioc_is_disabled(&bfa->ioc))
return BFA_STATUS_IOC_DISABLED;
if (fcport->diag_busy)
return BFA_STATUS_DIAG_BUSY;
bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_ENABLE);
return BFA_STATUS_OK;
}
bfa_status_t
bfa_fcport_disable(struct bfa_s *bfa)
{
if (bfa_ioc_is_disabled(&bfa->ioc))
return BFA_STATUS_IOC_DISABLED;
bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_DISABLE);
return BFA_STATUS_OK;
}
/*
* Configure port speed.
*/
bfa_status_t
bfa_fcport_cfg_speed(struct bfa_s *bfa, enum bfa_port_speed speed)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, speed);
if (fcport->cfg.trunked == BFA_TRUE)
return BFA_STATUS_TRUNK_ENABLED;
if ((speed != BFA_PORT_SPEED_AUTO) && (speed > fcport->speed_sup)) {
bfa_trc(bfa, fcport->speed_sup);
return BFA_STATUS_UNSUPP_SPEED;
}
fcport->cfg.speed = speed;
return BFA_STATUS_OK;
}
/*
* Get current speed.
*/
enum bfa_port_speed
bfa_fcport_get_speed(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->speed;
}
/*
* Configure port topology.
*/
bfa_status_t
bfa_fcport_cfg_topology(struct bfa_s *bfa, enum bfa_port_topology topology)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, topology);
bfa_trc(bfa, fcport->cfg.topology);
switch (topology) {
case BFA_PORT_TOPOLOGY_P2P:
case BFA_PORT_TOPOLOGY_LOOP:
case BFA_PORT_TOPOLOGY_AUTO:
break;
default:
return BFA_STATUS_EINVAL;
}
fcport->cfg.topology = topology;
return BFA_STATUS_OK;
}
/*
* Get current topology.
*/
enum bfa_port_topology
bfa_fcport_get_topology(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->topology;
}
bfa_status_t
bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, alpa);
bfa_trc(bfa, fcport->cfg.cfg_hardalpa);
bfa_trc(bfa, fcport->cfg.hardalpa);
fcport->cfg.cfg_hardalpa = BFA_TRUE;
fcport->cfg.hardalpa = alpa;
return BFA_STATUS_OK;
}
bfa_status_t
bfa_fcport_clr_hardalpa(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, fcport->cfg.cfg_hardalpa);
bfa_trc(bfa, fcport->cfg.hardalpa);
fcport->cfg.cfg_hardalpa = BFA_FALSE;
return BFA_STATUS_OK;
}
bfa_boolean_t
bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
*alpa = fcport->cfg.hardalpa;
return fcport->cfg.cfg_hardalpa;
}
u8
bfa_fcport_get_myalpa(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->myalpa;
}
bfa_status_t
bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxfrsize)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, maxfrsize);
bfa_trc(bfa, fcport->cfg.maxfrsize);
/* with in range */
if ((maxfrsize > FC_MAX_PDUSZ) || (maxfrsize < FC_MIN_PDUSZ))
return BFA_STATUS_INVLD_DFSZ;
/* power of 2, if not the max frame size of 2112 */
if ((maxfrsize != FC_MAX_PDUSZ) && (maxfrsize & (maxfrsize - 1)))
return BFA_STATUS_INVLD_DFSZ;
fcport->cfg.maxfrsize = maxfrsize;
return BFA_STATUS_OK;
}
u16
bfa_fcport_get_maxfrsize(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->cfg.maxfrsize;
}
u8
bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->cfg.rx_bbcredit;
}
void
bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
fcport->cfg.tx_bbcredit = (u8)tx_bbcredit;
bfa_fcport_send_txcredit(fcport);
}
/*
* Get port attributes.
*/
wwn_t
bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
if (node)
return fcport->nwwn;
else
return fcport->pwwn;
}
void
bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
memset(attr, 0, sizeof(struct bfa_port_attr_s));
attr->nwwn = fcport->nwwn;
attr->pwwn = fcport->pwwn;
attr->factorypwwn = bfa->ioc.attr->mfg_pwwn;
attr->factorynwwn = bfa->ioc.attr->mfg_nwwn;
memcpy(&attr->pport_cfg, &fcport->cfg,
sizeof(struct bfa_port_cfg_s));
/* speed attributes */
attr->pport_cfg.speed = fcport->cfg.speed;
attr->speed_supported = fcport->speed_sup;
attr->speed = fcport->speed;
attr->cos_supported = FC_CLASS_3;
/* topology attributes */
attr->pport_cfg.topology = fcport->cfg.topology;
attr->topology = fcport->topology;
attr->pport_cfg.trunked = fcport->cfg.trunked;
/* beacon attributes */
attr->beacon = fcport->beacon;
attr->link_e2e_beacon = fcport->link_e2e_beacon;
attr->plog_enabled = (bfa_boolean_t)fcport->bfa->plog->plog_enabled;
attr->io_profile = bfa_fcpim_get_io_profile(fcport->bfa);
attr->pport_cfg.path_tov = bfa_fcpim_path_tov_get(bfa);
attr->pport_cfg.q_depth = bfa_fcpim_qdepth_get(bfa);
attr->port_state = bfa_sm_to_state(hal_port_sm_table, fcport->sm);
if (bfa_ioc_is_disabled(&fcport->bfa->ioc))
attr->port_state = BFA_PORT_ST_IOCDIS;
else if (bfa_ioc_fw_mismatch(&fcport->bfa->ioc))
attr->port_state = BFA_PORT_ST_FWMISMATCH;
/* FCoE vlan */
attr->fcoe_vlan = fcport->fcoe_vlan;
}
#define BFA_FCPORT_STATS_TOV 1000
/*
* Fetch port statistics (FCQoS or FCoE).
*/
bfa_status_t
bfa_fcport_get_stats(struct bfa_s *bfa, union bfa_fcport_stats_u *stats,
bfa_cb_port_t cbfn, void *cbarg)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
if (fcport->stats_busy) {
bfa_trc(bfa, fcport->stats_busy);
return BFA_STATUS_DEVBUSY;
}
fcport->stats_busy = BFA_TRUE;
fcport->stats_ret = stats;
fcport->stats_cbfn = cbfn;
fcport->stats_cbarg = cbarg;
bfa_fcport_send_stats_get(fcport);
bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_get_timeout,
fcport, BFA_FCPORT_STATS_TOV);
return BFA_STATUS_OK;
}
/*
* Reset port statistics (FCQoS or FCoE).
*/
bfa_status_t
bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_port_t cbfn, void *cbarg)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
if (fcport->stats_busy) {
bfa_trc(bfa, fcport->stats_busy);
return BFA_STATUS_DEVBUSY;
}
fcport->stats_busy = BFA_TRUE;
fcport->stats_cbfn = cbfn;
fcport->stats_cbarg = cbarg;
bfa_fcport_send_stats_clear(fcport);
bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_clr_timeout,
fcport, BFA_FCPORT_STATS_TOV);
return BFA_STATUS_OK;
}
/*
* Fetch port attributes.
*/
bfa_boolean_t
bfa_fcport_is_disabled(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return bfa_sm_to_state(hal_port_sm_table, fcport->sm) ==
BFA_PORT_ST_DISABLED;
}
bfa_boolean_t
bfa_fcport_is_ratelim(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->cfg.ratelimit ? BFA_TRUE : BFA_FALSE;
}
/*
* Get default minimum ratelim speed
*/
enum bfa_port_speed
bfa_fcport_get_ratelim_speed(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
bfa_trc(bfa, fcport->cfg.trl_def_speed);
return fcport->cfg.trl_def_speed;
}
bfa_boolean_t
bfa_fcport_is_linkup(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return (!fcport->cfg.trunked &&
bfa_sm_cmp_state(fcport, bfa_fcport_sm_linkup)) ||
(fcport->cfg.trunked &&
fcport->trunk.attr.state == BFA_TRUNK_ONLINE);
}
bfa_boolean_t
bfa_fcport_is_qos_enabled(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->cfg.qos_enabled;
}
/*
* Rport State machine functions
*/
/*
* Beginning state, only online event expected.
*/
static void
bfa_rport_sm_uninit(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_CREATE:
bfa_stats(rp, sm_un_cr);
bfa_sm_set_state(rp, bfa_rport_sm_created);
break;
default:
bfa_stats(rp, sm_un_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
static void
bfa_rport_sm_created(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_ONLINE:
bfa_stats(rp, sm_cr_on);
if (bfa_rport_send_fwcreate(rp))
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
else
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_cr_del);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_cr_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
break;
default:
bfa_stats(rp, sm_cr_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Waiting for rport create response from firmware.
*/
static void
bfa_rport_sm_fwcreate(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_FWRSP:
bfa_stats(rp, sm_fwc_rsp);
bfa_sm_set_state(rp, bfa_rport_sm_online);
bfa_rport_online_cb(rp);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_fwc_del);
bfa_sm_set_state(rp, bfa_rport_sm_delete_pending);
break;
case BFA_RPORT_SM_OFFLINE:
bfa_stats(rp, sm_fwc_off);
bfa_sm_set_state(rp, bfa_rport_sm_offline_pending);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_fwc_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
break;
default:
bfa_stats(rp, sm_fwc_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Request queue is full, awaiting queue resume to send create request.
*/
static void
bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_QRESUME:
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
bfa_rport_send_fwcreate(rp);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_fwc_del);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_reqq_wcancel(&rp->reqq_wait);
bfa_rport_free(rp);
break;
case BFA_RPORT_SM_OFFLINE:
bfa_stats(rp, sm_fwc_off);
bfa_sm_set_state(rp, bfa_rport_sm_offline);
bfa_reqq_wcancel(&rp->reqq_wait);
bfa_rport_offline_cb(rp);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_fwc_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
bfa_reqq_wcancel(&rp->reqq_wait);
break;
default:
bfa_stats(rp, sm_fwc_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Online state - normal parking state.
*/
static void
bfa_rport_sm_online(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
struct bfi_rport_qos_scn_s *qos_scn;
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_OFFLINE:
bfa_stats(rp, sm_on_off);
if (bfa_rport_send_fwdelete(rp))
bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
else
bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_on_del);
if (bfa_rport_send_fwdelete(rp))
bfa_sm_set_state(rp, bfa_rport_sm_deleting);
else
bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_on_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
break;
case BFA_RPORT_SM_SET_SPEED:
bfa_rport_send_fwspeed(rp);
break;
case BFA_RPORT_SM_QOS_SCN:
qos_scn = (struct bfi_rport_qos_scn_s *) rp->event_arg.fw_msg;
rp->qos_attr = qos_scn->new_qos_attr;
bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_flow_id);
bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_flow_id);
bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_priority);
bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_priority);
qos_scn->old_qos_attr.qos_flow_id =
be32_to_cpu(qos_scn->old_qos_attr.qos_flow_id);
qos_scn->new_qos_attr.qos_flow_id =
be32_to_cpu(qos_scn->new_qos_attr.qos_flow_id);
if (qos_scn->old_qos_attr.qos_flow_id !=
qos_scn->new_qos_attr.qos_flow_id)
bfa_cb_rport_qos_scn_flowid(rp->rport_drv,
qos_scn->old_qos_attr,
qos_scn->new_qos_attr);
if (qos_scn->old_qos_attr.qos_priority !=
qos_scn->new_qos_attr.qos_priority)
bfa_cb_rport_qos_scn_prio(rp->rport_drv,
qos_scn->old_qos_attr,
qos_scn->new_qos_attr);
break;
default:
bfa_stats(rp, sm_on_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Firmware rport is being deleted - awaiting f/w response.
*/
static void
bfa_rport_sm_fwdelete(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_FWRSP:
bfa_stats(rp, sm_fwd_rsp);
bfa_sm_set_state(rp, bfa_rport_sm_offline);
bfa_rport_offline_cb(rp);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_fwd_del);
bfa_sm_set_state(rp, bfa_rport_sm_deleting);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_fwd_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
bfa_rport_offline_cb(rp);
break;
default:
bfa_stats(rp, sm_fwd_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
static void
bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_QRESUME:
bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
bfa_rport_send_fwdelete(rp);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_fwd_del);
bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_fwd_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
bfa_reqq_wcancel(&rp->reqq_wait);
bfa_rport_offline_cb(rp);
break;
default:
bfa_stats(rp, sm_fwd_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Offline state.
*/
static void
bfa_rport_sm_offline(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_off_del);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
case BFA_RPORT_SM_ONLINE:
bfa_stats(rp, sm_off_on);
if (bfa_rport_send_fwcreate(rp))
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
else
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_off_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
break;
default:
bfa_stats(rp, sm_off_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Rport is deleted, waiting for firmware response to delete.
*/
static void
bfa_rport_sm_deleting(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_FWRSP:
bfa_stats(rp, sm_del_fwrsp);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_del_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
default:
bfa_sm_fault(rp->bfa, event);
}
}
static void
bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_QRESUME:
bfa_stats(rp, sm_del_fwrsp);
bfa_sm_set_state(rp, bfa_rport_sm_deleting);
bfa_rport_send_fwdelete(rp);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_del_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_reqq_wcancel(&rp->reqq_wait);
bfa_rport_free(rp);
break;
default:
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Waiting for rport create response from firmware. A delete is pending.
*/
static void
bfa_rport_sm_delete_pending(struct bfa_rport_s *rp,
enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_FWRSP:
bfa_stats(rp, sm_delp_fwrsp);
if (bfa_rport_send_fwdelete(rp))
bfa_sm_set_state(rp, bfa_rport_sm_deleting);
else
bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_delp_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
default:
bfa_stats(rp, sm_delp_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* Waiting for rport create response from firmware. Rport offline is pending.
*/
static void
bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_FWRSP:
bfa_stats(rp, sm_offp_fwrsp);
if (bfa_rport_send_fwdelete(rp))
bfa_sm_set_state(rp, bfa_rport_sm_fwdelete);
else
bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_offp_del);
bfa_sm_set_state(rp, bfa_rport_sm_delete_pending);
break;
case BFA_RPORT_SM_HWFAIL:
bfa_stats(rp, sm_offp_hwf);
bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
break;
default:
bfa_stats(rp, sm_offp_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* IOC h/w failed.
*/
static void
bfa_rport_sm_iocdisable(struct bfa_rport_s *rp, enum bfa_rport_event event)
{
bfa_trc(rp->bfa, rp->rport_tag);
bfa_trc(rp->bfa, event);
switch (event) {
case BFA_RPORT_SM_OFFLINE:
bfa_stats(rp, sm_iocd_off);
bfa_rport_offline_cb(rp);
break;
case BFA_RPORT_SM_DELETE:
bfa_stats(rp, sm_iocd_del);
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
bfa_rport_free(rp);
break;
case BFA_RPORT_SM_ONLINE:
bfa_stats(rp, sm_iocd_on);
if (bfa_rport_send_fwcreate(rp))
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate);
else
bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull);
break;
case BFA_RPORT_SM_HWFAIL:
break;
default:
bfa_stats(rp, sm_iocd_unexp);
bfa_sm_fault(rp->bfa, event);
}
}
/*
* bfa_rport_private BFA rport private functions
*/
static void
__bfa_cb_rport_online(void *cbarg, bfa_boolean_t complete)
{
struct bfa_rport_s *rp = cbarg;
if (complete)
bfa_cb_rport_online(rp->rport_drv);
}
static void
__bfa_cb_rport_offline(void *cbarg, bfa_boolean_t complete)
{
struct bfa_rport_s *rp = cbarg;
if (complete)
bfa_cb_rport_offline(rp->rport_drv);
}
static void
bfa_rport_qresume(void *cbarg)
{
struct bfa_rport_s *rp = cbarg;
bfa_sm_send_event(rp, BFA_RPORT_SM_QRESUME);
}
static void
bfa_rport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
u32 *dm_len)
{
if (cfg->fwcfg.num_rports < BFA_RPORT_MIN)
cfg->fwcfg.num_rports = BFA_RPORT_MIN;
*km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_rport_s);
}
static void
bfa_rport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa);
struct bfa_rport_s *rp;
u16 i;
INIT_LIST_HEAD(&mod->rp_free_q);
INIT_LIST_HEAD(&mod->rp_active_q);
rp = (struct bfa_rport_s *) bfa_meminfo_kva(meminfo);
mod->rps_list = rp;
mod->num_rports = cfg->fwcfg.num_rports;
WARN_ON(!mod->num_rports ||
(mod->num_rports & (mod->num_rports - 1)));
for (i = 0; i < mod->num_rports; i++, rp++) {
memset(rp, 0, sizeof(struct bfa_rport_s));
rp->bfa = bfa;
rp->rport_tag = i;
bfa_sm_set_state(rp, bfa_rport_sm_uninit);
/*
* - is unused
*/
if (i)
list_add_tail(&rp->qe, &mod->rp_free_q);
bfa_reqq_winit(&rp->reqq_wait, bfa_rport_qresume, rp);
}
/*
* consume memory
*/
bfa_meminfo_kva(meminfo) = (u8 *) rp;
}
static void
bfa_rport_detach(struct bfa_s *bfa)
{
}
static void
bfa_rport_start(struct bfa_s *bfa)
{
}
static void
bfa_rport_stop(struct bfa_s *bfa)
{
}
static void
bfa_rport_iocdisable(struct bfa_s *bfa)
{
struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa);
struct bfa_rport_s *rport;
struct list_head *qe, *qen;
list_for_each_safe(qe, qen, &mod->rp_active_q) {
rport = (struct bfa_rport_s *) qe;
bfa_sm_send_event(rport, BFA_RPORT_SM_HWFAIL);
}
}
static struct bfa_rport_s *
bfa_rport_alloc(struct bfa_rport_mod_s *mod)
{
struct bfa_rport_s *rport;
bfa_q_deq(&mod->rp_free_q, &rport);
if (rport)
list_add_tail(&rport->qe, &mod->rp_active_q);
return rport;
}
static void
bfa_rport_free(struct bfa_rport_s *rport)
{
struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(rport->bfa);
WARN_ON(!bfa_q_is_on_q(&mod->rp_active_q, rport));
list_del(&rport->qe);
list_add_tail(&rport->qe, &mod->rp_free_q);
}
static bfa_boolean_t
bfa_rport_send_fwcreate(struct bfa_rport_s *rp)
{
struct bfi_rport_create_req_s *m;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
if (!m) {
bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait);
return BFA_FALSE;
}
bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_CREATE_REQ,
bfa_lpuid(rp->bfa));
m->bfa_handle = rp->rport_tag;
m->max_frmsz = cpu_to_be16(rp->rport_info.max_frmsz);
m->pid = rp->rport_info.pid;
m->lp_tag = rp->rport_info.lp_tag;
m->local_pid = rp->rport_info.local_pid;
m->fc_class = rp->rport_info.fc_class;
m->vf_en = rp->rport_info.vf_en;
m->vf_id = rp->rport_info.vf_id;
m->cisc = rp->rport_info.cisc;
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
return BFA_TRUE;
}
static bfa_boolean_t
bfa_rport_send_fwdelete(struct bfa_rport_s *rp)
{
struct bfi_rport_delete_req_s *m;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
if (!m) {
bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait);
return BFA_FALSE;
}
bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_DELETE_REQ,
bfa_lpuid(rp->bfa));
m->fw_handle = rp->fw_handle;
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
return BFA_TRUE;
}
static bfa_boolean_t
bfa_rport_send_fwspeed(struct bfa_rport_s *rp)
{
struct bfa_rport_speed_req_s *m;
/*
* check for room in queue to send request now
*/
m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT);
if (!m) {
bfa_trc(rp->bfa, rp->rport_info.speed);
return BFA_FALSE;
}
bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_SET_SPEED_REQ,
bfa_lpuid(rp->bfa));
m->fw_handle = rp->fw_handle;
m->speed = (u8)rp->rport_info.speed;
/*
* queue I/O message to firmware
*/
bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT);
return BFA_TRUE;
}
/*
* bfa_rport_public
*/
/*
* Rport interrupt processing.
*/
void
bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
{
union bfi_rport_i2h_msg_u msg;
struct bfa_rport_s *rp;
bfa_trc(bfa, m->mhdr.msg_id);
msg.msg = m;
switch (m->mhdr.msg_id) {
case BFI_RPORT_I2H_CREATE_RSP:
rp = BFA_RPORT_FROM_TAG(bfa, msg.create_rsp->bfa_handle);
rp->fw_handle = msg.create_rsp->fw_handle;
rp->qos_attr = msg.create_rsp->qos_attr;
WARN_ON(msg.create_rsp->status != BFA_STATUS_OK);
bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
break;
case BFI_RPORT_I2H_DELETE_RSP:
rp = BFA_RPORT_FROM_TAG(bfa, msg.delete_rsp->bfa_handle);
WARN_ON(msg.delete_rsp->status != BFA_STATUS_OK);
bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
break;
case BFI_RPORT_I2H_QOS_SCN:
rp = BFA_RPORT_FROM_TAG(bfa, msg.qos_scn_evt->bfa_handle);
rp->event_arg.fw_msg = msg.qos_scn_evt;
bfa_sm_send_event(rp, BFA_RPORT_SM_QOS_SCN);
break;
default:
bfa_trc(bfa, m->mhdr.msg_id);
WARN_ON(1);
}
}
/*
* bfa_rport_api
*/
struct bfa_rport_s *
bfa_rport_create(struct bfa_s *bfa, void *rport_drv)
{
struct bfa_rport_s *rp;
rp = bfa_rport_alloc(BFA_RPORT_MOD(bfa));
if (rp == NULL)
return NULL;
rp->bfa = bfa;
rp->rport_drv = rport_drv;
memset(&rp->stats, 0, sizeof(rp->stats));
WARN_ON(!bfa_sm_cmp_state(rp, bfa_rport_sm_uninit));
bfa_sm_send_event(rp, BFA_RPORT_SM_CREATE);
return rp;
}
void
bfa_rport_online(struct bfa_rport_s *rport, struct bfa_rport_info_s *rport_info)
{
WARN_ON(rport_info->max_frmsz == 0);
/*
* Some JBODs are seen to be not setting PDU size correctly in PLOGI
* responses. Default to minimum size.
*/
if (rport_info->max_frmsz == 0) {
bfa_trc(rport->bfa, rport->rport_tag);
rport_info->max_frmsz = FC_MIN_PDUSZ;
}
rport->rport_info = *rport_info;
bfa_sm_send_event(rport, BFA_RPORT_SM_ONLINE);
}
void
bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed)
{
WARN_ON(speed == 0);
WARN_ON(speed == BFA_PORT_SPEED_AUTO);
rport->rport_info.speed = speed;
bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED);
}
/*
* SGPG related functions
*/
/*
* Compute and return memory needed by FCP(im) module.
*/
static void
bfa_sgpg_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
u32 *dm_len)
{
if (cfg->drvcfg.num_sgpgs < BFA_SGPG_MIN)
cfg->drvcfg.num_sgpgs = BFA_SGPG_MIN;
*km_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfa_sgpg_s);
*dm_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfi_sgpg_s);
}
static void
bfa_sgpg_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *minfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
int i;
struct bfa_sgpg_s *hsgpg;
struct bfi_sgpg_s *sgpg;
u64 align_len;
union {
u64 pa;
union bfi_addr_u addr;
} sgpg_pa, sgpg_pa_tmp;
INIT_LIST_HEAD(&mod->sgpg_q);
INIT_LIST_HEAD(&mod->sgpg_wait_q);
bfa_trc(bfa, cfg->drvcfg.num_sgpgs);
mod->num_sgpgs = cfg->drvcfg.num_sgpgs;
mod->sgpg_arr_pa = bfa_meminfo_dma_phys(minfo);
align_len = (BFA_SGPG_ROUNDUP(mod->sgpg_arr_pa) - mod->sgpg_arr_pa);
mod->sgpg_arr_pa += align_len;
mod->hsgpg_arr = (struct bfa_sgpg_s *) (bfa_meminfo_kva(minfo) +
align_len);
mod->sgpg_arr = (struct bfi_sgpg_s *) (bfa_meminfo_dma_virt(minfo) +
align_len);
hsgpg = mod->hsgpg_arr;
sgpg = mod->sgpg_arr;
sgpg_pa.pa = mod->sgpg_arr_pa;
mod->free_sgpgs = mod->num_sgpgs;
WARN_ON(sgpg_pa.pa & (sizeof(struct bfi_sgpg_s) - 1));
for (i = 0; i < mod->num_sgpgs; i++) {
memset(hsgpg, 0, sizeof(*hsgpg));
memset(sgpg, 0, sizeof(*sgpg));
hsgpg->sgpg = sgpg;
sgpg_pa_tmp.pa = bfa_sgaddr_le(sgpg_pa.pa);
hsgpg->sgpg_pa = sgpg_pa_tmp.addr;
list_add_tail(&hsgpg->qe, &mod->sgpg_q);
hsgpg++;
sgpg++;
sgpg_pa.pa += sizeof(struct bfi_sgpg_s);
}
bfa_meminfo_kva(minfo) = (u8 *) hsgpg;
bfa_meminfo_dma_virt(minfo) = (u8 *) sgpg;
bfa_meminfo_dma_phys(minfo) = sgpg_pa.pa;
}
static void
bfa_sgpg_detach(struct bfa_s *bfa)
{
}
static void
bfa_sgpg_start(struct bfa_s *bfa)
{
}
static void
bfa_sgpg_stop(struct bfa_s *bfa)
{
}
static void
bfa_sgpg_iocdisable(struct bfa_s *bfa)
{
}
bfa_status_t
bfa_sgpg_malloc(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpgs)
{
struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
struct bfa_sgpg_s *hsgpg;
int i;
if (mod->free_sgpgs < nsgpgs)
return BFA_STATUS_ENOMEM;
for (i = 0; i < nsgpgs; i++) {
bfa_q_deq(&mod->sgpg_q, &hsgpg);
WARN_ON(!hsgpg);
list_add_tail(&hsgpg->qe, sgpg_q);
}
mod->free_sgpgs -= nsgpgs;
return BFA_STATUS_OK;
}
void
bfa_sgpg_mfree(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpg)
{
struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
struct bfa_sgpg_wqe_s *wqe;
mod->free_sgpgs += nsgpg;
WARN_ON(mod->free_sgpgs > mod->num_sgpgs);
list_splice_tail_init(sgpg_q, &mod->sgpg_q);
if (list_empty(&mod->sgpg_wait_q))
return;
/*
* satisfy as many waiting requests as possible
*/
do {
wqe = bfa_q_first(&mod->sgpg_wait_q);
if (mod->free_sgpgs < wqe->nsgpg)
nsgpg = mod->free_sgpgs;
else
nsgpg = wqe->nsgpg;
bfa_sgpg_malloc(bfa, &wqe->sgpg_q, nsgpg);
wqe->nsgpg -= nsgpg;
if (wqe->nsgpg == 0) {
list_del(&wqe->qe);
wqe->cbfn(wqe->cbarg);
}
} while (mod->free_sgpgs && !list_empty(&mod->sgpg_wait_q));
}
void
bfa_sgpg_wait(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe, int nsgpg)
{
struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
WARN_ON(nsgpg <= 0);
WARN_ON(nsgpg <= mod->free_sgpgs);
wqe->nsgpg_total = wqe->nsgpg = nsgpg;
/*
* allocate any left to this one first
*/
if (mod->free_sgpgs) {
/*
* no one else is waiting for SGPG
*/
WARN_ON(!list_empty(&mod->sgpg_wait_q));
list_splice_tail_init(&mod->sgpg_q, &wqe->sgpg_q);
wqe->nsgpg -= mod->free_sgpgs;
mod->free_sgpgs = 0;
}
list_add_tail(&wqe->qe, &mod->sgpg_wait_q);
}
void
bfa_sgpg_wcancel(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe)
{
struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa);
WARN_ON(!bfa_q_is_on_q(&mod->sgpg_wait_q, wqe));
list_del(&wqe->qe);
if (wqe->nsgpg_total != wqe->nsgpg)
bfa_sgpg_mfree(bfa, &wqe->sgpg_q,
wqe->nsgpg_total - wqe->nsgpg);
}
void
bfa_sgpg_winit(struct bfa_sgpg_wqe_s *wqe, void (*cbfn) (void *cbarg),
void *cbarg)
{
INIT_LIST_HEAD(&wqe->sgpg_q);
wqe->cbfn = cbfn;
wqe->cbarg = cbarg;
}
/*
* UF related functions
*/
/*
*****************************************************************************
* Internal functions
*****************************************************************************
*/
static void
__bfa_cb_uf_recv(void *cbarg, bfa_boolean_t complete)
{
struct bfa_uf_s *uf = cbarg;
struct bfa_uf_mod_s *ufm = BFA_UF_MOD(uf->bfa);
if (complete)
ufm->ufrecv(ufm->cbarg, uf);
}
static void
claim_uf_pbs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
{
u32 uf_pb_tot_sz;
ufm->uf_pbs_kva = (struct bfa_uf_buf_s *) bfa_meminfo_dma_virt(mi);
ufm->uf_pbs_pa = bfa_meminfo_dma_phys(mi);
uf_pb_tot_sz = BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * ufm->num_ufs),
BFA_DMA_ALIGN_SZ);
bfa_meminfo_dma_virt(mi) += uf_pb_tot_sz;
bfa_meminfo_dma_phys(mi) += uf_pb_tot_sz;
memset((void *)ufm->uf_pbs_kva, 0, uf_pb_tot_sz);
}
static void
claim_uf_post_msgs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
{
struct bfi_uf_buf_post_s *uf_bp_msg;
struct bfi_sge_s *sge;
union bfi_addr_u sga_zero = { {0} };
u16 i;
u16 buf_len;
ufm->uf_buf_posts = (struct bfi_uf_buf_post_s *) bfa_meminfo_kva(mi);
uf_bp_msg = ufm->uf_buf_posts;
for (i = 0, uf_bp_msg = ufm->uf_buf_posts; i < ufm->num_ufs;
i++, uf_bp_msg++) {
memset(uf_bp_msg, 0, sizeof(struct bfi_uf_buf_post_s));
uf_bp_msg->buf_tag = i;
buf_len = sizeof(struct bfa_uf_buf_s);
uf_bp_msg->buf_len = cpu_to_be16(buf_len);
bfi_h2i_set(uf_bp_msg->mh, BFI_MC_UF, BFI_UF_H2I_BUF_POST,
bfa_lpuid(ufm->bfa));
sge = uf_bp_msg->sge;
sge[0].sg_len = buf_len;
sge[0].flags = BFI_SGE_DATA_LAST;
bfa_dma_addr_set(sge[0].sga, ufm_pbs_pa(ufm, i));
bfa_sge_to_be(sge);
sge[1].sg_len = buf_len;
sge[1].flags = BFI_SGE_PGDLEN;
sge[1].sga = sga_zero;
bfa_sge_to_be(&sge[1]);
}
/*
* advance pointer beyond consumed memory
*/
bfa_meminfo_kva(mi) = (u8 *) uf_bp_msg;
}
static void
claim_ufs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
{
u16 i;
struct bfa_uf_s *uf;
/*
* Claim block of memory for UF list
*/
ufm->uf_list = (struct bfa_uf_s *) bfa_meminfo_kva(mi);
/*
* Initialize UFs and queue it in UF free queue
*/
for (i = 0, uf = ufm->uf_list; i < ufm->num_ufs; i++, uf++) {
memset(uf, 0, sizeof(struct bfa_uf_s));
uf->bfa = ufm->bfa;
uf->uf_tag = i;
uf->pb_len = sizeof(struct bfa_uf_buf_s);
uf->buf_kva = (void *)&ufm->uf_pbs_kva[i];
uf->buf_pa = ufm_pbs_pa(ufm, i);
list_add_tail(&uf->qe, &ufm->uf_free_q);
}
/*
* advance memory pointer
*/
bfa_meminfo_kva(mi) = (u8 *) uf;
}
static void
uf_mem_claim(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi)
{
claim_uf_pbs(ufm, mi);
claim_ufs(ufm, mi);
claim_uf_post_msgs(ufm, mi);
}
static void
bfa_uf_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, u32 *dm_len)
{
u32 num_ufs = cfg->fwcfg.num_uf_bufs;
/*
* dma-able memory for UF posted bufs
*/
*dm_len += BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * num_ufs),
BFA_DMA_ALIGN_SZ);
/*
* kernel Virtual memory for UFs and UF buf post msg copies
*/
*ndm_len += sizeof(struct bfa_uf_s) * num_ufs;
*ndm_len += sizeof(struct bfi_uf_buf_post_s) * num_ufs;
}
static void
bfa_uf_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
{
struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
memset(ufm, 0, sizeof(struct bfa_uf_mod_s));
ufm->bfa = bfa;
ufm->num_ufs = cfg->fwcfg.num_uf_bufs;
INIT_LIST_HEAD(&ufm->uf_free_q);
INIT_LIST_HEAD(&ufm->uf_posted_q);
uf_mem_claim(ufm, meminfo);
}
static void
bfa_uf_detach(struct bfa_s *bfa)
{
}
static struct bfa_uf_s *
bfa_uf_get(struct bfa_uf_mod_s *uf_mod)
{
struct bfa_uf_s *uf;
bfa_q_deq(&uf_mod->uf_free_q, &uf);
return uf;
}
static void
bfa_uf_put(struct bfa_uf_mod_s *uf_mod, struct bfa_uf_s *uf)
{
list_add_tail(&uf->qe, &uf_mod->uf_free_q);
}
static bfa_status_t
bfa_uf_post(struct bfa_uf_mod_s *ufm, struct bfa_uf_s *uf)
{
struct bfi_uf_buf_post_s *uf_post_msg;
uf_post_msg = bfa_reqq_next(ufm->bfa, BFA_REQQ_FCXP);
if (!uf_post_msg)
return BFA_STATUS_FAILED;
memcpy(uf_post_msg, &ufm->uf_buf_posts[uf->uf_tag],
sizeof(struct bfi_uf_buf_post_s));
bfa_reqq_produce(ufm->bfa, BFA_REQQ_FCXP);
bfa_trc(ufm->bfa, uf->uf_tag);
list_add_tail(&uf->qe, &ufm->uf_posted_q);
return BFA_STATUS_OK;
}
static void
bfa_uf_post_all(struct bfa_uf_mod_s *uf_mod)
{
struct bfa_uf_s *uf;
while ((uf = bfa_uf_get(uf_mod)) != NULL) {
if (bfa_uf_post(uf_mod, uf) != BFA_STATUS_OK)
break;
}
}
static void
uf_recv(struct bfa_s *bfa, struct bfi_uf_frm_rcvd_s *m)
{
struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
u16 uf_tag = m->buf_tag;
struct bfa_uf_buf_s *uf_buf = &ufm->uf_pbs_kva[uf_tag];
struct bfa_uf_s *uf = &ufm->uf_list[uf_tag];
u8 *buf = &uf_buf->d[0];
struct fchs_s *fchs;
m->frm_len = be16_to_cpu(m->frm_len);
m->xfr_len = be16_to_cpu(m->xfr_len);
fchs = (struct fchs_s *)uf_buf;
list_del(&uf->qe); /* dequeue from posted queue */
uf->data_ptr = buf;
uf->data_len = m->xfr_len;
WARN_ON(uf->data_len < sizeof(struct fchs_s));
if (uf->data_len == sizeof(struct fchs_s)) {
bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_UF, BFA_PL_EID_RX,
uf->data_len, (struct fchs_s *)buf);
} else {
u32 pld_w0 = *((u32 *) (buf + sizeof(struct fchs_s)));
bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_UF,
BFA_PL_EID_RX, uf->data_len,
(struct fchs_s *)buf, pld_w0);
}
if (bfa->fcs)
__bfa_cb_uf_recv(uf, BFA_TRUE);
else
bfa_cb_queue(bfa, &uf->hcb_qe, __bfa_cb_uf_recv, uf);
}
static void
bfa_uf_stop(struct bfa_s *bfa)
{
}
static void
bfa_uf_iocdisable(struct bfa_s *bfa)
{
struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
struct bfa_uf_s *uf;
struct list_head *qe, *qen;
list_for_each_safe(qe, qen, &ufm->uf_posted_q) {
uf = (struct bfa_uf_s *) qe;
list_del(&uf->qe);
bfa_uf_put(ufm, uf);
}
}
static void
bfa_uf_start(struct bfa_s *bfa)
{
bfa_uf_post_all(BFA_UF_MOD(bfa));
}
/*
* Register handler for all unsolicted receive frames.
*
* @param[in] bfa BFA instance
* @param[in] ufrecv receive handler function
* @param[in] cbarg receive handler arg
*/
void
bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv, void *cbarg)
{
struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa);
ufm->ufrecv = ufrecv;
ufm->cbarg = cbarg;
}
/*
* Free an unsolicited frame back to BFA.
*
* @param[in] uf unsolicited frame to be freed
*
* @return None
*/
void
bfa_uf_free(struct bfa_uf_s *uf)
{
bfa_uf_put(BFA_UF_MOD(uf->bfa), uf);
bfa_uf_post_all(BFA_UF_MOD(uf->bfa));
}
/*
* uf_pub BFA uf module public functions
*/
void
bfa_uf_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
{
bfa_trc(bfa, msg->mhdr.msg_id);
switch (msg->mhdr.msg_id) {
case BFI_UF_I2H_FRM_RCVD:
uf_recv(bfa, (struct bfi_uf_frm_rcvd_s *) msg);
break;
default:
bfa_trc(bfa, msg->mhdr.msg_id);
WARN_ON(1);
}
}
