#define ENA_REGS_ADMIN_INTR_MASK 1
-#define ENA_POLL_MS 5
+#define ENA_MIN_ADMIN_POLL_US 100
+
+#define ENA_MAX_ADMIN_POLL_US 5000
/*****************************************************************************/
/*****************************************************************************/
}
ena_addr->mem_addr_low = lower_32_bits(addr);
- ena_addr->mem_addr_high = upper_32_bits(addr);
+ ena_addr->mem_addr_high = (u16)upper_32_bits(addr);
return 0;
}
size = io_cq->cdesc_entry_size_in_bytes * io_cq->q_depth;
io_cq->bus = ena_dev->bus;
- ENA_MEM_ALLOC_COHERENT_NODE(ena_dev->dmadev,
- size,
- io_cq->cdesc_addr.virt_addr,
- io_cq->cdesc_addr.phys_addr,
- io_cq->cdesc_addr.mem_handle,
- ctx->numa_node,
- prev_node);
+ ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED(ena_dev->dmadev,
+ size,
+ io_cq->cdesc_addr.virt_addr,
+ io_cq->cdesc_addr.phys_addr,
+ io_cq->cdesc_addr.mem_handle,
+ ctx->numa_node,
+ prev_node,
+ ENA_CDESC_RING_SIZE_ALIGNMENT);
if (!io_cq->cdesc_addr.virt_addr) {
- ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
- size,
- io_cq->cdesc_addr.virt_addr,
- io_cq->cdesc_addr.phys_addr,
- io_cq->cdesc_addr.mem_handle);
+ ENA_MEM_ALLOC_COHERENT_ALIGNED(ena_dev->dmadev,
+ size,
+ io_cq->cdesc_addr.virt_addr,
+ io_cq->cdesc_addr.phys_addr,
+ io_cq->cdesc_addr.mem_handle,
+ ENA_CDESC_RING_SIZE_ALIGNMENT);
}
if (!io_cq->cdesc_addr.virt_addr) {
case ENA_ADMIN_ILLEGAL_PARAMETER:
case ENA_ADMIN_UNKNOWN_ERROR:
return ENA_COM_INVAL;
+ case ENA_ADMIN_RESOURCE_BUSY:
+ return ENA_COM_TRY_AGAIN;
}
return ENA_COM_INVAL;
}
+static void ena_delay_exponential_backoff_us(u32 exp, u32 delay_us)
+{
+ delay_us = ENA_MAX32(ENA_MIN_ADMIN_POLL_US, delay_us);
+ delay_us = ENA_MIN32(delay_us * (1U << exp), ENA_MAX_ADMIN_POLL_US);
+ ENA_USLEEP(delay_us);
+}
+
static int ena_com_wait_and_process_admin_cq_polling(struct ena_comp_ctx *comp_ctx,
struct ena_com_admin_queue *admin_queue)
{
unsigned long flags = 0;
ena_time_t timeout;
int ret;
+ u32 exp = 0;
timeout = ENA_GET_SYSTEM_TIMEOUT(admin_queue->completion_timeout);
while (1) {
- ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
- ena_com_handle_admin_completion(admin_queue);
- ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
+ ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
+ ena_com_handle_admin_completion(admin_queue);
+ ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
- if (comp_ctx->status != ENA_CMD_SUBMITTED)
+ if (comp_ctx->status != ENA_CMD_SUBMITTED)
break;
if (ENA_TIME_EXPIRE(timeout)) {
goto err;
}
- ENA_MSLEEP(ENA_POLL_MS);
+ ena_delay_exponential_backoff_us(exp++,
+ admin_queue->ena_dev->ena_min_poll_delay_us);
}
if (unlikely(comp_ctx->status == ENA_CMD_ABORTED)) {
cmd.u.llq.desc_num_before_header_enabled = llq_info->descs_num_before_header;
cmd.u.llq.descriptors_stride_ctrl_enabled = llq_info->desc_stride_ctrl;
- if (llq_info->disable_meta_caching)
- cmd.u.llq.accel_mode.u.set.enabled_flags |=
- BIT(ENA_ADMIN_DISABLE_META_CACHING);
-
- if (llq_info->max_entries_in_tx_burst)
- cmd.u.llq.accel_mode.u.set.enabled_flags |=
- BIT(ENA_ADMIN_LIMIT_TX_BURST);
+ cmd.u.llq.accel_mode.u.set.enabled_flags =
+ BIT(ENA_ADMIN_DISABLE_META_CACHING) |
+ BIT(ENA_ADMIN_LIMIT_TX_BURST);
ret = ena_com_execute_admin_command(admin_queue,
(struct ena_admin_aq_entry *)&cmd,
struct ena_llq_configurations *llq_default_cfg)
{
struct ena_com_llq_info *llq_info = &ena_dev->llq_info;
+ struct ena_admin_accel_mode_get llq_accel_mode_get;
u16 supported_feat;
int rc;
llq_info->descs_num_before_header);
}
/* Check for accelerated queue supported */
+ llq_accel_mode_get = llq_features->accel_mode.u.get;
+
llq_info->disable_meta_caching =
- llq_features->accel_mode.u.get.supported_flags &
- BIT(ENA_ADMIN_DISABLE_META_CACHING);
+ !!(llq_accel_mode_get.supported_flags &
+ BIT(ENA_ADMIN_DISABLE_META_CACHING));
- if (llq_features->accel_mode.u.get.supported_flags & BIT(ENA_ADMIN_LIMIT_TX_BURST))
+ if (llq_accel_mode_get.supported_flags & BIT(ENA_ADMIN_LIMIT_TX_BURST))
llq_info->max_entries_in_tx_burst =
- llq_features->accel_mode.u.get.max_tx_burst_size /
+ llq_accel_mode_get.max_tx_burst_size /
llq_default_cfg->llq_ring_entry_size_value;
rc = ena_com_set_llq(ena_dev);
static int wait_for_reset_state(struct ena_com_dev *ena_dev, u32 timeout,
u16 exp_state)
{
- u32 val, i;
+ u32 val, exp = 0;
+ ena_time_t timeout_stamp;
- /* Convert timeout from resolution of 100ms to ENA_POLL_MS */
- timeout = (timeout * 100) / ENA_POLL_MS;
+ /* Convert timeout from resolution of 100ms to us resolution. */
+ timeout_stamp = ENA_GET_SYSTEM_TIMEOUT(100 * 1000 * timeout);
- for (i = 0; i < timeout; i++) {
+ while (1) {
val = ena_com_reg_bar_read32(ena_dev, ENA_REGS_DEV_STS_OFF);
if (unlikely(val == ENA_MMIO_READ_TIMEOUT)) {
exp_state)
return 0;
- ENA_MSLEEP(ENA_POLL_MS);
- }
+ if (ENA_TIME_EXPIRE(timeout_stamp))
+ return ENA_COM_TIMER_EXPIRED;
- return ENA_COM_TIMER_EXPIRED;
+ ena_delay_exponential_backoff_us(exp++, ena_dev->ena_min_poll_delay_us);
+ }
}
static bool ena_com_check_supported_feature_id(struct ena_com_dev *ena_dev,
feature_ver);
}
+int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev)
+{
+ return ena_dev->rss.hash_func;
+}
+
static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev)
{
struct ena_admin_feature_rss_flow_hash_control *hash_key =
(ena_dev->rss).hash_key;
ENA_RSS_FILL_KEY(&hash_key->key, sizeof(hash_key->key));
- /* The key is stored in the device in uint32_t array
- * as well as the API requires the key to be passed in this
- * format. Thus the size of our array should be divided by 4
+ /* The key buffer is stored in the device in an array of
+ * uint32 elements.
*/
- hash_key->keys_num = sizeof(hash_key->key) / sizeof(uint32_t);
+ hash_key->keys_num = ENA_ADMIN_RSS_KEY_PARTS;
}
static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev)
{
struct ena_rss *rss = &ena_dev->rss;
+ if (!ena_com_check_supported_feature_id(ena_dev, ENA_ADMIN_RSS_HASH_FUNCTION))
+ return ENA_COM_UNSUPPORTED;
+
ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev,
sizeof(*rss->hash_key),
rss->hash_key,
{
struct ena_com_admin_queue *admin_queue = &ena_dev->admin_queue;
unsigned long flags = 0;
+ u32 exp = 0;
ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
while (ATOMIC32_READ(&admin_queue->outstanding_cmds) != 0) {
ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
- ENA_MSLEEP(ENA_POLL_MS);
+ ena_delay_exponential_backoff_us(exp++, ena_dev->ena_min_poll_delay_us);
ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
}
ENA_SPINLOCK_UNLOCK(admin_queue->q_lock, flags);
struct ena_com_aenq *aenq = &ena_dev->aenq;
u16 size;
- ENA_WAIT_EVENT_DESTROY(admin_queue->comp_ctx->wait_event);
- if (admin_queue->comp_ctx)
+ if (admin_queue->comp_ctx) {
+ ENA_WAIT_EVENT_DESTROY(admin_queue->comp_ctx->wait_event);
ENA_MEM_FREE(ena_dev->dmadev,
admin_queue->comp_ctx,
(admin_queue->q_depth * sizeof(struct ena_comp_ctx)));
+ }
+
admin_queue->comp_ctx = NULL;
size = ADMIN_SQ_SIZE(admin_queue->q_depth);
if (sq->entries)
ena_dev->admin_queue.polling = polling;
}
-bool ena_com_get_admin_polling_mode(struct ena_com_dev * ena_dev)
+bool ena_com_get_admin_polling_mode(struct ena_com_dev *ena_dev)
{
return ena_dev->admin_queue.polling;
}
if (ret)
goto error;
+ admin_queue->ena_dev = ena_dev;
admin_queue->running_state = true;
return 0;
timestamp = (u64)aenq_common->timestamp_low |
((u64)aenq_common->timestamp_high << 32);
ENA_TOUCH(timestamp); /* In case debug is disabled */
- ena_trc_dbg("AENQ! Group[%x] Syndrom[%x] timestamp: [%"PRIu64"]\n",
+ ena_trc_dbg("AENQ! Group[%x] Syndrom[%x] timestamp: [%" ENA_PRIu64 "s]\n",
aenq_common->group,
aenq_common->syndrom,
timestamp);
mb();
ENA_REG_WRITE32_RELAXED(dev->bus, (u32)aenq->head,
dev->reg_bar + ENA_REGS_AENQ_HEAD_DB_OFF);
-#ifndef MMIOWB_NOT_DEFINED
mmiowb();
-#endif
}
int ena_com_dev_reset(struct ena_com_dev *ena_dev,
return ret;
}
+int ena_com_get_eni_stats(struct ena_com_dev *ena_dev,
+ struct ena_admin_eni_stats *stats)
+{
+ struct ena_com_stats_ctx ctx;
+ int ret;
+
+ memset(&ctx, 0x0, sizeof(ctx));
+ ret = ena_get_dev_stats(ena_dev, &ctx, ENA_ADMIN_GET_STATS_TYPE_ENI);
+ if (likely(ret == 0))
+ memcpy(stats, &ctx.get_resp.u.eni_stats,
+ sizeof(ctx.get_resp.u.eni_stats));
+
+ return ret;
+}
+
int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev,
struct ena_admin_basic_stats *stats)
{
memset(&ctx, 0x0, sizeof(ctx));
ret = ena_get_dev_stats(ena_dev, &ctx, ENA_ADMIN_GET_STATS_TYPE_BASIC);
if (likely(ret == 0))
- memcpy(stats, &ctx.get_resp.basic_stats,
- sizeof(ctx.get_resp.basic_stats));
+ memcpy(stats, &ctx.get_resp.u.basic_stats,
+ sizeof(ctx.get_resp.u.basic_stats));
return ret;
}
}
int ena_com_get_hash_function(struct ena_com_dev *ena_dev,
- enum ena_admin_hash_functions *func,
- u8 *key)
+ enum ena_admin_hash_functions *func)
{
struct ena_rss *rss = &ena_dev->rss;
struct ena_admin_get_feat_resp get_resp;
- struct ena_admin_feature_rss_flow_hash_control *hash_key =
- rss->hash_key;
int rc;
+ if (unlikely(!func))
+ return ENA_COM_INVAL;
+
rc = ena_com_get_feature_ex(ena_dev, &get_resp,
ENA_ADMIN_RSS_HASH_FUNCTION,
rss->hash_key_dma_addr,
if (unlikely(rc))
return rc;
- /* ENA_FFS returns 1 in case the lsb is set */
+ /* ENA_FFS() returns 1 in case the lsb is set */
rss->hash_func = ENA_FFS(get_resp.u.flow_hash_func.selected_func);
if (rss->hash_func)
rss->hash_func--;
- if (func)
- *func = rss->hash_func;
+ *func = rss->hash_func;
+
+ return 0;
+}
+
+int ena_com_get_hash_key(struct ena_com_dev *ena_dev, u8 *key)
+{
+ struct ena_admin_feature_rss_flow_hash_control *hash_key =
+ ena_dev->rss.hash_key;
if (key)
memcpy(key, hash_key->key, (size_t)(hash_key->keys_num) << 2);
if (unlikely(rc))
goto err_indr_tbl;
+ /* The following function might return unsupported in case the
+ * device doesn't support setting the key / hash function. We can safely
+ * ignore this error and have indirection table support only.
+ */
rc = ena_com_hash_key_allocate(ena_dev);
- if (unlikely(rc))
+ if (likely(!rc))
+ ena_com_hash_key_fill_default_key(ena_dev);
+ else if (rc != ENA_COM_UNSUPPORTED)
goto err_hash_key;
- ena_com_hash_key_fill_default_key(ena_dev);
-
rc = ena_com_hash_ctrl_init(ena_dev);
if (unlikely(rc))
goto err_hash_ctrl;
struct ena_admin_feature_llq_desc *llq_features,
struct ena_llq_configurations *llq_default_cfg)
{
+ struct ena_com_llq_info *llq_info = &ena_dev->llq_info;
int rc;
- struct ena_com_llq_info *llq_info = &(ena_dev->llq_info);;
if (!llq_features->max_llq_num) {
ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
ena_dev->tx_max_header_size = llq_info->desc_list_entry_size -
(llq_info->descs_num_before_header * sizeof(struct ena_eth_io_tx_desc));
- if (ena_dev->tx_max_header_size == 0) {
+ if (unlikely(ena_dev->tx_max_header_size == 0)) {
ena_trc_err("the size of the LLQ entry is smaller than needed\n");
return -EINVAL;
}
git.droids-corp.org / dpdk.git / blobdiff