summaryrefslogtreecommitdiff
path: root/drivers/scsi/bfa/bfa_fcpim.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/bfa/bfa_fcpim.c')
-rw-r--r--drivers/scsi/bfa/bfa_fcpim.c123
1 files changed, 112 insertions, 11 deletions
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index 1633963c66ca..27b560962357 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -158,6 +158,7 @@ enum bfa_tskim_event {
BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */
BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */
BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */
+ BFA_TSKIM_SM_UTAG = 10, /* TM completion unknown tag */
};
/*
@@ -3036,7 +3037,7 @@ bfa_ioim_abort(struct bfa_ioim_s *ioim)
static void
bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_START:
@@ -3074,7 +3075,7 @@ bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
static void
bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_DONE:
@@ -3110,7 +3111,7 @@ bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
static void
bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_DONE:
@@ -3119,6 +3120,7 @@ bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
*/
break;
+ case BFA_TSKIM_SM_UTAG:
case BFA_TSKIM_SM_CLEANUP_DONE:
bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup);
bfa_tskim_cleanup_ios(tskim);
@@ -3138,7 +3140,7 @@ bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
static void
bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_IOS_DONE:
@@ -3170,7 +3172,7 @@ bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
static void
bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_QRESUME:
@@ -3207,7 +3209,7 @@ static void
bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim,
enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_DONE:
@@ -3238,7 +3240,7 @@ bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim,
static void
bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
{
- bfa_trc(tskim->bfa, event);
+ bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event);
switch (event) {
case BFA_TSKIM_SM_HCB:
@@ -3560,6 +3562,8 @@ bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) {
bfa_stats(tskim->itnim, tm_cleanup_comps);
bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE);
+ } else if (rsp->tsk_status == BFI_TSKIM_STS_UTAG) {
+ bfa_sm_send_event(tskim, BFA_TSKIM_SM_UTAG);
} else {
bfa_stats(tskim->itnim, tm_fw_rsps);
bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE);
@@ -3699,6 +3703,7 @@ bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_mem_dma_s *seg_ptr;
u16 idx, nsegs, num_io_req;
+ fcp->max_ioim_reqs = cfg->fwcfg.num_ioim_reqs;
fcp->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs;
fcp->num_fwtio_reqs = cfg->fwcfg.num_fwtio_reqs;
fcp->num_itns = cfg->fwcfg.num_rports;
@@ -3721,6 +3726,7 @@ bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
bfa_iocfc_set_snsbase(bfa, idx, fcp->snsbase[idx].pa);
}
+ fcp->throttle_update_required = 1;
bfa_fcpim_attach(fcp, bfad, cfg, pcidev);
bfa_iotag_attach(fcp);
@@ -3759,23 +3765,33 @@ bfa_fcp_iocdisable(struct bfa_s *bfa)
{
struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);
- /* Enqueue unused ioim resources to free_q */
- list_splice_tail_init(&fcp->iotag_unused_q, &fcp->iotag_ioim_free_q);
-
bfa_fcpim_iocdisable(fcp);
}
void
-bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw)
+bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw, u16 max_ioim_fw)
{
struct bfa_fcp_mod_s *mod = BFA_FCP_MOD(bfa);
struct list_head *qe;
int i;
+ /* Update io throttle value only once during driver load time */
+ if (!mod->throttle_update_required)
+ return;
+
for (i = 0; i < (mod->num_ioim_reqs - num_ioim_fw); i++) {
bfa_q_deq_tail(&mod->iotag_ioim_free_q, &qe);
list_add_tail(qe, &mod->iotag_unused_q);
}
+
+ if (mod->num_ioim_reqs != num_ioim_fw) {
+ bfa_trc(bfa, mod->num_ioim_reqs);
+ bfa_trc(bfa, num_ioim_fw);
+ }
+
+ mod->max_ioim_reqs = max_ioim_fw;
+ mod->num_ioim_reqs = num_ioim_fw;
+ mod->throttle_update_required = 0;
}
void
@@ -3833,3 +3849,88 @@ bfa_iotag_attach(struct bfa_fcp_mod_s *fcp)
bfa_mem_kva_curp(fcp) = (u8 *) iotag;
}
+
+
+/**
+ * To send config req, first try to use throttle value from flash
+ * If 0, then use driver parameter
+ * We need to use min(flash_val, drv_val) because
+ * memory allocation was done based on this cfg'd value
+ */
+u16
+bfa_fcpim_get_throttle_cfg(struct bfa_s *bfa, u16 drv_cfg_param)
+{
+ u16 tmp;
+ struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);
+
+ /*
+ * If throttle value from flash is already in effect after driver is
+ * loaded then until next load, always return current value instead
+ * of actual flash value
+ */
+ if (!fcp->throttle_update_required)
+ return (u16)fcp->num_ioim_reqs;
+
+ tmp = bfa_dconf_read_data_valid(bfa) ? bfa_fcpim_read_throttle(bfa) : 0;
+ if (!tmp || (tmp > drv_cfg_param))
+ tmp = drv_cfg_param;
+
+ return tmp;
+}
+
+bfa_status_t
+bfa_fcpim_write_throttle(struct bfa_s *bfa, u16 value)
+{
+ if (!bfa_dconf_get_min_cfg(bfa)) {
+ BFA_DCONF_MOD(bfa)->dconf->throttle_cfg.value = value;
+ BFA_DCONF_MOD(bfa)->dconf->throttle_cfg.is_valid = 1;
+ return BFA_STATUS_OK;
+ }
+
+ return BFA_STATUS_FAILED;
+}
+
+u16
+bfa_fcpim_read_throttle(struct bfa_s *bfa)
+{
+ struct bfa_throttle_cfg_s *throttle_cfg =
+ &(BFA_DCONF_MOD(bfa)->dconf->throttle_cfg);
+
+ return ((!bfa_dconf_get_min_cfg(bfa)) ?
+ ((throttle_cfg->is_valid == 1) ? (throttle_cfg->value) : 0) : 0);
+}
+
+bfa_status_t
+bfa_fcpim_throttle_set(struct bfa_s *bfa, u16 value)
+{
+ /* in min cfg no commands should run. */
+ if ((bfa_dconf_get_min_cfg(bfa) == BFA_TRUE) ||
+ (!bfa_dconf_read_data_valid(bfa)))
+ return BFA_STATUS_FAILED;
+
+ bfa_fcpim_write_throttle(bfa, value);
+
+ return bfa_dconf_update(bfa);
+}
+
+bfa_status_t
+bfa_fcpim_throttle_get(struct bfa_s *bfa, void *buf)
+{
+ struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);
+ struct bfa_defs_fcpim_throttle_s throttle;
+
+ if ((bfa_dconf_get_min_cfg(bfa) == BFA_TRUE) ||
+ (!bfa_dconf_read_data_valid(bfa)))
+ return BFA_STATUS_FAILED;
+
+ memset(&throttle, 0, sizeof(struct bfa_defs_fcpim_throttle_s));
+
+ throttle.cur_value = (u16)(fcpim->fcp->num_ioim_reqs);
+ throttle.cfg_value = bfa_fcpim_read_throttle(bfa);
+ if (!throttle.cfg_value)
+ throttle.cfg_value = throttle.cur_value;
+ throttle.max_value = (u16)(fcpim->fcp->max_ioim_reqs);
+ memcpy(buf, &throttle, sizeof(struct bfa_defs_fcpim_throttle_s));
+
+ return BFA_STATUS_OK;
+}