| Message ID | 20190403025418.26863-1-honli@redhat.com (mailing list archive) |
|---|---|
| State | Rejected |
| Headers | show |
| Series | man/ibv_poll_cq.3 add note for "byte_len" field | expand |
Please drop this patch. It is mlx4 specific driver issue. On Wed, Apr 03, 2019 at 10:54:18AM +0800, Honggang Li wrote: > Signed-off-by: Honggang Li <honli@redhat.com> > --- > libibverbs/man/ibv_poll_cq.3 | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/libibverbs/man/ibv_poll_cq.3 b/libibverbs/man/ibv_poll_cq.3 > index 957fd151495a..db94436f848b 100644 > --- a/libibverbs/man/ibv_poll_cq.3 > +++ b/libibverbs/man/ibv_poll_cq.3 > @@ -30,7 +30,7 @@ uint64_t wr_id; /* ID of the completed Work Request (WR) > enum ibv_wc_status status; /* Status of the operation */ > enum ibv_wc_opcode opcode; /* Operation type specified in the completed WR */ > uint32_t vendor_err; /* Vendor error syndrome */ > -uint32_t byte_len; /* Number of bytes transferred */ > +uint32_t byte_len; /* Number of bytes received */ > union { > .in +8 > __be32 imm_data; /* Immediate data (in network byte order) */ > @@ -78,6 +78,8 @@ found. On failure, a negative value is returned. > .PP > Each polled completion is removed from the CQ and cannot be returned to it. > .PP > +ibv_poll_cq will not update the "byte_len" field when the "opcode" of completed WR is IBV_WC_SEND. > +.PP > The user should consume work completions at a rate that prevents CQ > overrun from occurrence. In case of a CQ overrun, the async event > .B IBV_EVENT_CQ_ERR > -- > 2.15.0-rc1 >
diff --git a/libibverbs/man/ibv_poll_cq.3 b/libibverbs/man/ibv_poll_cq.3 index 957fd151495a..db94436f848b 100644 --- a/libibverbs/man/ibv_poll_cq.3 +++ b/libibverbs/man/ibv_poll_cq.3 @@ -30,7 +30,7 @@ uint64_t wr_id; /* ID of the completed Work Request (WR) enum ibv_wc_status status; /* Status of the operation */ enum ibv_wc_opcode opcode; /* Operation type specified in the completed WR */ uint32_t vendor_err; /* Vendor error syndrome */ -uint32_t byte_len; /* Number of bytes transferred */ +uint32_t byte_len; /* Number of bytes received */ union { .in +8 __be32 imm_data; /* Immediate data (in network byte order) */ @@ -78,6 +78,8 @@ found. On failure, a negative value is returned. .PP Each polled completion is removed from the CQ and cannot be returned to it. .PP +ibv_poll_cq will not update the "byte_len" field when the "opcode" of completed WR is IBV_WC_SEND. +.PP The user should consume work completions at a rate that prevents CQ overrun from occurrence. In case of a CQ overrun, the async event .B IBV_EVENT_CQ_ERR
Signed-off-by: Honggang Li <honli@redhat.com> --- libibverbs/man/ibv_poll_cq.3 | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)