RDMA/iser: don't send an rkey if all data is written as immadiate-data

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

We might get some bogus error completions in case the target will
remotely invalidate the rkey and the HCA will need to retransmit
from this buffer.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>

authored by

Sagi Grimberg and committed by

Doug Ledford 8 years ago e6e52aec 12171971

+4 -2

1 changed file

expand all

drivers

infiniband

ulp

iser

iser_initiator.c

+4 -2

drivers/infiniband/ulp/iser/iser_initiator.c

··· 137 137 138 138 if (unsol_sz < edtl) { 139 139 hdr->flags |= ISER_WSV; 140 - hdr->write_stag = cpu_to_be32(mem_reg->rkey); 141 - hdr->write_va = cpu_to_be64(mem_reg->sge.addr + unsol_sz); 140 + if (buf_out->data_len > imm_sz) { 141 + hdr->write_stag = cpu_to_be32(mem_reg->rkey); 142 + hdr->write_va = cpu_to_be64(mem_reg->sge.addr + unsol_sz); 143 + } 142 144 143 145 iser_dbg("Cmd itt:%d, WRITE tags, RKEY:%#.4X " 144 146 "VA:%#llX + unsol:%d\n",