| From 60971e62dcbb50a7ef1c3839e8b33b5aef6a48fe Mon Sep 17 00:00:00 2001 |
| From: John Daley <johndale@cisco.com> |
| Date: Fri, 1 Jul 2016 12:24:45 -0700 |
| Subject: [PATCH 18/25] enic: fix segfault on Tx path after restarting a device |
| |
| If you stop then start a port that had already sent some packets, |
| there was a segfault due to not resetting the number of completed |
| sends to zero. |
| |
| Fixes: d5d882fe1a11 ("Tx path rewrite to reduce Host CPU overhead") |
| |
| Signed-off-by: Nelson Escobar <neescoba@cisco.com> |
| Reviewed-by: John Daley <johndale@cisco.com> |
| --- |
| drivers/net/enic/base/vnic_wq.c | 2 ++ |
| drivers/net/enic/base/vnic_wq.h | 1 + |
| 2 files changed, 3 insertions(+) |
| |
| diff --git a/drivers/net/enic/base/vnic_wq.c b/drivers/net/enic/base/vnic_wq.c |
| index ccbbd61..7026bfe 100644 |
| --- a/drivers/net/enic/base/vnic_wq.c |
| +++ b/drivers/net/enic/base/vnic_wq.c |
| @@ -206,6 +206,8 @@ void vnic_wq_clean(struct vnic_wq *wq, |
| |
| wq->head_idx = 0; |
| wq->tail_idx = 0; |
| + wq->last_completed_index = 0; |
| + *((uint32_t *)wq->cqmsg_rz->addr) = 0; |
| |
| iowrite32(0, &wq->ctrl->fetch_index); |
| iowrite32(0, &wq->ctrl->posted_index); |
| diff --git a/drivers/net/enic/base/vnic_wq.h b/drivers/net/enic/base/vnic_wq.h |
| index 37c3ff9..faf3bfa 100644 |
| --- a/drivers/net/enic/base/vnic_wq.h |
| +++ b/drivers/net/enic/base/vnic_wq.h |
| @@ -38,6 +38,7 @@ |
| |
| #include "vnic_dev.h" |
| #include "vnic_cq.h" |
| +#include <rte_memzone.h> |
| |
| /* Work queue control */ |
| struct vnic_wq_ctrl { |
| -- |
| 2.7.0 |
| |