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path: root/drivers/net/ethernet/pensando/ionic/ionic_main.c
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Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_main.c')
-rw-r--r--drivers/net/ethernet/pensando/ionic/ionic_main.c117
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);