diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 10 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_memory.c | 54 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 16 |
3 files changed, 28 insertions, 52 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 2484bee993ec..8a5998e6a407 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -230,7 +230,7 @@ enum iser_data_dir { */ struct iser_data_buf { struct scatterlist *sg; - unsigned int size; + int size; unsigned long data_len; unsigned int dma_nents; }; @@ -297,7 +297,7 @@ struct iser_tx_desc { u8 wr_idx; union iser_wr { struct ib_send_wr send; - struct ib_fast_reg_wr fast_reg; + struct ib_reg_wr fast_reg; struct ib_sig_handover_wr sig; } wrs[ISER_MAX_WRS]; struct iser_mem_reg data_reg; @@ -412,7 +412,6 @@ struct iser_device { * * @mr: memory region * @fmr_pool: pool of fmrs - * @frpl: fast reg page list used by frwrs * @page_vec: fast reg page list used by fmr pool * @mr_valid: is mr valid indicator */ @@ -421,10 +420,7 @@ struct iser_reg_resources { struct ib_mr *mr; struct ib_fmr_pool *fmr_pool; }; - union { - struct ib_fast_reg_page_list *frpl; - struct iser_page_vec *page_vec; - }; + struct iser_page_vec *page_vec; u8 mr_valid:1; }; diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index b29fda3e8e74..ea765fb9664d 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -472,7 +472,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task, sig_reg->sge.addr = 0; sig_reg->sge.length = scsi_transfer_length(iser_task->sc); - iser_dbg("sig reg: lkey: 0x%x, rkey: 0x%x, addr: 0x%llx, length: %u\n", + iser_dbg("lkey=0x%x rkey=0x%x addr=0x%llx length=%u\n", sig_reg->sge.lkey, sig_reg->rkey, sig_reg->sge.addr, sig_reg->sge.length); err: @@ -484,47 +484,41 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task, struct iser_reg_resources *rsc, struct iser_mem_reg *reg) { - struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn; - struct iser_device *device = ib_conn->device; - struct ib_mr *mr = rsc->mr; - struct ib_fast_reg_page_list *frpl = rsc->frpl; struct iser_tx_desc *tx_desc = &iser_task->desc; - struct ib_fast_reg_wr *wr; - int offset, size, plen; - - plen = iser_sg_to_page_vec(mem, device->ib_device, frpl->page_list, - &offset, &size); - if (plen * SIZE_4K < size) { - iser_err("fast reg page_list too short to hold this SG\n"); - return -EINVAL; - } + struct ib_mr *mr = rsc->mr; + struct ib_reg_wr *wr; + int n; if (!rsc->mr_valid) iser_inv_rkey(iser_tx_next_wr(tx_desc), mr); - wr = fast_reg_wr(iser_tx_next_wr(tx_desc)); - wr->wr.opcode = IB_WR_FAST_REG_MR; + n = ib_map_mr_sg(mr, mem->sg, mem->size, SIZE_4K); + if (unlikely(n != mem->size)) { + iser_err("failed to map sg (%d/%d)\n", + n, mem->size); + return n < 0 ? n : -EINVAL; + } + + wr = reg_wr(iser_tx_next_wr(tx_desc)); + wr->wr.opcode = IB_WR_REG_MR; wr->wr.wr_id = ISER_FASTREG_LI_WRID; wr->wr.send_flags = 0; - wr->iova_start = frpl->page_list[0] + offset; - wr->page_list = frpl; - wr->page_list_len = plen; - wr->page_shift = SHIFT_4K; - wr->length = size; - wr->rkey = mr->rkey; - wr->access_flags = (IB_ACCESS_LOCAL_WRITE | - IB_ACCESS_REMOTE_WRITE | - IB_ACCESS_REMOTE_READ); + wr->wr.num_sge = 0; + wr->mr = mr; + wr->key = mr->rkey; + wr->access = IB_ACCESS_LOCAL_WRITE | + IB_ACCESS_REMOTE_WRITE | + IB_ACCESS_REMOTE_READ; + rsc->mr_valid = 0; reg->sge.lkey = mr->lkey; reg->rkey = mr->rkey; - reg->sge.addr = frpl->page_list[0] + offset; - reg->sge.length = size; + reg->sge.addr = mr->iova; + reg->sge.length = mr->length; - iser_dbg("fast reg: lkey=0x%x, rkey=0x%x, addr=0x%llx," - " length=0x%x\n", reg->sge.lkey, reg->rkey, - reg->sge.addr, reg->sge.length); + iser_dbg("lkey=0x%x rkey=0x%x addr=0x%llx length=0x%x\n", + reg->sge.lkey, reg->rkey, reg->sge.addr, reg->sge.length); return 0; } diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index e7f3b204239b..a93070210109 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -293,35 +293,21 @@ iser_alloc_reg_res(struct ib_device *ib_device, { int ret; - res->frpl = ib_alloc_fast_reg_page_list(ib_device, size); - if (IS_ERR(res->frpl)) { - ret = PTR_ERR(res->frpl); - iser_err("Failed to allocate ib_fast_reg_page_list err=%d\n", - ret); - return PTR_ERR(res->frpl); - } - res->mr = ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG, size); if (IS_ERR(res->mr)) { ret = PTR_ERR(res->mr); iser_err("Failed to allocate ib_fast_reg_mr err=%d\n", ret); - goto fast_reg_mr_failure; + return ret; } res->mr_valid = 1; return 0; - -fast_reg_mr_failure: - ib_free_fast_reg_page_list(res->frpl); - - return ret; } static void iser_free_reg_res(struct iser_reg_resources *rsc) { ib_dereg_mr(rsc->mr); - ib_free_fast_reg_page_list(rsc->frpl); } static int |