diff options
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_main.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_main.c | 117 |
1 files changed, 95 insertions, 22 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c index 2f479de329..c1259324b0 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_main.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c @@ -15,7 +15,7 @@ #include "ionic_debugfs.h" MODULE_DESCRIPTION(IONIC_DRV_DESCRIPTION); -MODULE_AUTHOR("Pensando Systems, Inc"); +MODULE_AUTHOR("Shannon Nelson <shannon.nelson@amd.com>"); MODULE_LICENSE("GPL"); static const char *ionic_error_to_str(enum ionic_status_code code) @@ -190,7 +190,8 @@ static const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode) static void ionic_adminq_flush(struct ionic_lif *lif) { - struct ionic_desc_info *desc_info; + struct ionic_admin_desc_info *desc_info; + struct ionic_admin_cmd *desc; unsigned long irqflags; struct ionic_queue *q; @@ -203,10 +204,10 @@ static void ionic_adminq_flush(struct ionic_lif *lif) q = &lif->adminqcq->q; while (q->tail_idx != q->head_idx) { - desc_info = &q->info[q->tail_idx]; - memset(desc_info->desc, 0, sizeof(union ionic_adminq_cmd)); - desc_info->cb = NULL; - desc_info->cb_arg = NULL; + desc = &q->adminq[q->tail_idx]; + desc_info = &q->admin_info[q->tail_idx]; + memset(desc, 0, sizeof(union ionic_adminq_cmd)); + desc_info->ctx = NULL; q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1); } spin_unlock_irqrestore(&lif->adminq_lock, irqflags); @@ -246,25 +247,93 @@ static int ionic_adminq_check_err(struct ionic_lif *lif, return err; } -static void ionic_adminq_cb(struct ionic_queue *q, - struct ionic_desc_info *desc_info, - struct ionic_cq_info *cq_info, void *cb_arg) +bool ionic_notifyq_service(struct ionic_cq *cq) { - struct ionic_admin_ctx *ctx = cb_arg; + struct ionic_deferred_work *work; + union ionic_notifyq_comp *comp; + struct net_device *netdev; + struct ionic_queue *q; + struct ionic_lif *lif; + u64 eid; + + comp = &((union ionic_notifyq_comp *)cq->base)[cq->tail_idx]; + + q = cq->bound_q; + lif = q->admin_info[0].ctx; + netdev = lif->netdev; + eid = le64_to_cpu(comp->event.eid); + + /* Have we run out of new completions to process? */ + if ((s64)(eid - lif->last_eid) <= 0) + return false; + + lif->last_eid = eid; + + dev_dbg(lif->ionic->dev, "notifyq event:\n"); + dynamic_hex_dump("event ", DUMP_PREFIX_OFFSET, 16, 1, + comp, sizeof(*comp), true); + + switch (le16_to_cpu(comp->event.ecode)) { + case IONIC_EVENT_LINK_CHANGE: + ionic_link_status_check_request(lif, CAN_NOT_SLEEP); + break; + case IONIC_EVENT_RESET: + if (lif->ionic->idev.fw_status_ready && + !test_bit(IONIC_LIF_F_FW_RESET, lif->state) && + !test_and_set_bit(IONIC_LIF_F_FW_STOPPING, lif->state)) { + work = kzalloc(sizeof(*work), GFP_ATOMIC); + if (!work) { + netdev_err(lif->netdev, "Reset event dropped\n"); + clear_bit(IONIC_LIF_F_FW_STOPPING, lif->state); + } else { + work->type = IONIC_DW_TYPE_LIF_RESET; + ionic_lif_deferred_enqueue(&lif->deferred, work); + } + } + break; + default: + netdev_warn(netdev, "Notifyq event ecode=%d eid=%lld\n", + comp->event.ecode, eid); + break; + } + + return true; +} + +bool ionic_adminq_service(struct ionic_cq *cq) +{ + struct ionic_admin_desc_info *desc_info; + struct ionic_queue *q = cq->bound_q; struct ionic_admin_comp *comp; + u16 index; - if (!ctx) - return; + comp = &((struct ionic_admin_comp *)cq->base)[cq->tail_idx]; + + if (!color_match(comp->color, cq->done_color)) + return false; + + /* check for empty queue */ + if (q->tail_idx == q->head_idx) + return false; - comp = cq_info->cq_desc; + do { + desc_info = &q->admin_info[q->tail_idx]; + index = q->tail_idx; + q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1); + if (likely(desc_info->ctx)) { + struct ionic_admin_ctx *ctx = desc_info->ctx; - memcpy(&ctx->comp, comp, sizeof(*comp)); + memcpy(&ctx->comp, comp, sizeof(*comp)); - dev_dbg(q->dev, "comp admin queue command:\n"); - dynamic_hex_dump("comp ", DUMP_PREFIX_OFFSET, 16, 1, - &ctx->comp, sizeof(ctx->comp), true); + dev_dbg(q->dev, "comp admin queue command:\n"); + dynamic_hex_dump("comp ", DUMP_PREFIX_OFFSET, 16, 1, + &ctx->comp, sizeof(ctx->comp), true); + complete_all(&ctx->work); + desc_info->ctx = NULL; + } + } while (index != le16_to_cpu(comp->comp_index)); - complete_all(&ctx->work); + return true; } bool ionic_adminq_poke_doorbell(struct ionic_queue *q) @@ -298,7 +367,8 @@ bool ionic_adminq_poke_doorbell(struct ionic_queue *q) int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) { - struct ionic_desc_info *desc_info; + struct ionic_admin_desc_info *desc_info; + struct ionic_admin_cmd *desc; unsigned long irqflags; struct ionic_queue *q; int err = 0; @@ -320,14 +390,17 @@ int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) if (err) goto err_out; - desc_info = &q->info[q->head_idx]; - memcpy(desc_info->desc, &ctx->cmd, sizeof(ctx->cmd)); + desc_info = &q->admin_info[q->head_idx]; + desc_info->ctx = ctx; + + desc = &q->adminq[q->head_idx]; + memcpy(desc, &ctx->cmd, sizeof(ctx->cmd)); dev_dbg(&lif->netdev->dev, "post admin queue command:\n"); dynamic_hex_dump("cmd ", DUMP_PREFIX_OFFSET, 16, 1, &ctx->cmd, sizeof(ctx->cmd), true); - ionic_q_post(q, true, ionic_adminq_cb, ctx); + ionic_q_post(q, true); err_out: spin_unlock_irqrestore(&lif->adminq_lock, irqflags); |