RDMA/erdma: Inline mtt entries into WQE if supported

[ Upstream commit 0dd83a4d7756713f81990d6c5547500f212a1190 ]

The max inline mtt count supported is ERDMA_MAX_INLINE_MTT_ENTRIES.
When mr->mem.mtt_nents == ERDMA_MAX_INLINE_MTT_ENTRIES, inline mtt
is also supported, fix it.

Fixes: 155055771704 ("RDMA/erdma: Add verbs implementation")
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230320084652.16807-4-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/infiniband/hw/erdma/erdma_qp.c b/drivers/infiniband/hw/erdma/erdma_qp.c
index 5fe1a339a43543904f528dacbec6d748d70498e3..e3b0baa703e6815c8eda9615b0e9e31a9d1b0e1c 100644 (file)
--- a/drivers/infiniband/hw/erdma/erdma_qp.c
+++ b/drivers/infiniband/hw/erdma/erdma_qp.c
@@ -402,7 +402,7 @@ static int erdma_push_one_sqe(struct erdma_qp *qp, u16 *pi,
                        FIELD_PREP(ERDMA_SQE_MR_MTT_CNT_MASK,
                                   mr->mem.mtt_nents);
 
-               if (mr->mem.mtt_nents < ERDMA_MAX_INLINE_MTT_ENTRIES) {
+               if (mr->mem.mtt_nents <= ERDMA_MAX_INLINE_MTT_ENTRIES) {
                        attrs |= FIELD_PREP(ERDMA_SQE_MR_MTT_TYPE_MASK, 0);
                        /* Copy SGLs to SQE content to accelerate */
                        memcpy(get_queue_entry(qp->kern_qp.sq_buf, idx + 1,