diff options
Diffstat (limited to 'drivers/infiniband/ulp/iser')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 2 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_memory.c | 9 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 8 |
3 files changed, 12 insertions, 7 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index ef7d3be46c3..5babdb35bda 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -94,7 +94,7 @@ /* support up to 512KB in one RDMA */ #define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K) -#define ISER_DEF_CMD_PER_LUN 128 +#define ISER_DEF_CMD_PER_LUN ISCSI_DEF_XMIT_CMDS_MAX /* QP settings */ /* Maximal bounds on received asynchronous PDUs */ diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 2033a928d34..be1edb04b08 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -369,10 +369,11 @@ int iser_reg_rdma_mem(struct iscsi_iser_task *iser_task, regd_buf = &iser_task->rdma_regd[cmd_dir]; aligned_len = iser_data_buf_aligned_len(mem, ibdev); - if (aligned_len != mem->dma_nents) { + if (aligned_len != mem->dma_nents || + (!ib_conn->fmr_pool && mem->dma_nents > 1)) { iscsi_conn->fmr_unalign_cnt++; - iser_warn("rdma alignment violation %d/%d aligned\n", - aligned_len, mem->size); + iser_warn("rdma alignment violation (%d/%d aligned) or FMR not supported\n", + aligned_len, mem->size); iser_data_buf_dump(mem, ibdev); /* unmap the command data before accessing it */ @@ -404,7 +405,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_task *iser_task, } else { /* use FMR for multiple dma entries */ iser_page_vec_build(mem, ib_conn->page_vec, ibdev); err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, ®d_buf->reg); - if (err) { + if (err && err != -EAGAIN) { iser_data_buf_dump(mem, ibdev); iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents, diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 95a49affee4..4debadc5310 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -242,10 +242,14 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) IB_ACCESS_REMOTE_READ); ib_conn->fmr_pool = ib_create_fmr_pool(device->pd, ¶ms); - if (IS_ERR(ib_conn->fmr_pool)) { - ret = PTR_ERR(ib_conn->fmr_pool); + ret = PTR_ERR(ib_conn->fmr_pool); + if (IS_ERR(ib_conn->fmr_pool) && ret != -ENOSYS) { ib_conn->fmr_pool = NULL; goto out_err; + } else if (ret == -ENOSYS) { + ib_conn->fmr_pool = NULL; + iser_warn("FMRs are not supported, using unaligned mode\n"); + ret = 0; } memset(&init_attr, 0, sizeof init_attr); |