diff options
Diffstat (limited to 'dpdk/dpdk-16.04_patches/0019-enic-fix-Rx-queue-initialization-after-restarting-a-.patch')
| -rw-r--r-- | dpdk/dpdk-16.04_patches/0019-enic-fix-Rx-queue-initialization-after-restarting-a-.patch | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/dpdk/dpdk-16.04_patches/0019-enic-fix-Rx-queue-initialization-after-restarting-a-.patch b/dpdk/dpdk-16.04_patches/0019-enic-fix-Rx-queue-initialization-after-restarting-a-.patch deleted file mode 100644 index 3e107486..00000000 --- a/dpdk/dpdk-16.04_patches/0019-enic-fix-Rx-queue-initialization-after-restarting-a-.patch +++ /dev/null @@ -1,37 +0,0 @@ -From 8d336ba9cbcb4832b992201497afe07afcd4f2e1 Mon Sep 17 00:00:00 2001 -From: John Daley <johndale@cisco.com> -Date: Fri, 1 Jul 2016 12:32:45 -0700 -Subject: [PATCH 19/25] enic: fix Rx queue initialization after restarting a - device - -If you stop then start a port that had already received some packets, -the NIC could fetch discriptors from the wrong location. This could -effectivly reduce the size of the Rx queue by a random amount and -cause packet drop or reduced performance. - -Reset the NIC fetch index to 0 when allocating and posting mbuf -addresses to the NIC. - -Fixes: 947d860c821f ("enic: improve Rx performance") - -Signed-off-by: John Daley <johndale@cisco.com> -Reviewed-by: Nelson Escobar <neescoba@cisco.com> ---- - drivers/net/enic/enic_main.c | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c -index be17707..68532d3 100644 ---- a/drivers/net/enic/enic_main.c -+++ b/drivers/net/enic/enic_main.c -@@ -346,6 +346,7 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq) - dev_debug(enic, "port=%u, qidx=%u, Write %u posted idx, %u sw held\n", - enic->port_id, rq->index, rq->posted_index, rq->rx_nb_hold); - iowrite32(rq->posted_index, &rq->ctrl->posted_index); -+ iowrite32(0, &rq->ctrl->fetch_index); - rte_rmb(); - - // printf("posted %d buffers to %s rq\n", rq->ring.desc_count, --- -2.7.0 - |