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authorArthur Kiyanovski <akiyano@amazon.com>2018-10-17 15:33:23 +0300
committerDavid S. Miller <davem@davemloft.net>2018-10-17 22:30:41 -0700
commit9fd255928d7ffb56d8466fab3331d0b2f40aa8c7 (patch)
tree1a7faaab92257cba229b23f0142a7563d7916b0e /drivers
parent8c590f9776386b8f697fd0b7ed6142ae6e3de79e (diff)
downloadlinux-9fd255928d7ffb56d8466fab3331d0b2f40aa8c7.tar.bz2
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_netdev.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 284a0a612131..18956e7604a3 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -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);