redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

net: ena: enable Low Latency Queues 

Use the new API to enable usage of LLQ.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Arthur Kiyanovski 2018-10-17 15:33:23 +03:00 committed by David S. Miller
parent 8c590f9776
commit 9fd255928d
1 changed files with 4 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/net/ethernet/amazon/ena/ena_netdev.c
View File

@ -3022,20 +3022,10 @@ static int ena_calc_io_queue_num(struct pci_dev *pdev,
int io_sq_num, io_queue_num;
/* In case of LLQ use the llq number in the get feature cmd */
if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
io_sq_num = get_feat_ctx->max_queues.max_legacy_llq_num;
if (io_sq_num == 0) {
dev_err(&pdev->dev,
"Trying to use LLQ but llq_num is 0. Fall back into regular queues\n");
ena_dev->tx_mem_queue_type =
ENA_ADMIN_PLACEMENT_POLICY_HOST;
io_sq_num = get_feat_ctx->max_queues.max_sq_num;
}
} else {
if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
io_sq_num = get_feat_ctx->llq.max_llq_num;
else
io_sq_num = get_feat_ctx->max_queues.max_sq_num;
}
io_queue_num = min_t(int, num_online_cpus(), ENA_MAX_NUM_IO_QUEUES);
io_queue_num = min_t(int, io_queue_num, io_sq_num);
@ -3238,7 +3228,7 @@ static int ena_calc_queue_size(struct pci_dev *pdev,
if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
queue_size = min_t(u32, queue_size,
get_feat_ctx->max_queues.max_legacy_llq_depth);
get_feat_ctx->llq.max_llq_depth);
queue_size = rounddown_pow_of_two(queue_size);