> @@ -2585,11 +2517,9 @@ isert_fast_reg_mr(struct isert_conn *isert_conn,
> struct isert_device *device = isert_conn->device;
> struct ib_device *ib_dev = device->ib_device;
> struct ib_mr *mr;
> struct ib_send_wr fr_wr, inv_wr;
> struct ib_send_wr *bad_wr, *wr = NULL;
> + int ret;
>
> if (mem->dma_nents == 1) {
> sge->lkey = device->mr->lkey;
> @@ -2600,40 +2530,32 @@ isert_fast_reg_mr(struct isert_conn *isert_conn,
> return 0;
> }
>
> + if (ind == ISERT_DATA_KEY_VALID)
> /* Registering data buffer */
> mr = fr_desc->data_mr;
> + else
> /* Registering protection buffer */
> mr = fr_desc->pi_ctx->prot_mr;
>
> if (!(fr_desc->ind & ind)) {
> isert_inv_rkey(&inv_wr, mr);
> wr = &inv_wr;
> }
>
> + ret = ib_map_mr_sg(mr, mem->sg, mem->nents, IB_ACCESS_LOCAL_WRITE);
> + if (ret) {
> + isert_err("failed to map sg %p with %d entries\n",
> + mem->sg, mem->dma_nents);
> + return ret;
> + }
> +
> + isert_dbg("Use fr_desc %p sg_nents %d offset %u\n",
> + fr_desc, mem->nents, mem->offset);
> +
> /* Prepare FASTREG WR */
> memset(&fr_wr, 0, sizeof(fr_wr));
> + ib_set_fastreg_wr(mr, mr->lkey, ISER_FASTREG_LI_WRID,
> + false, &fr_wr);
Shouldn't ib_set_fastreg_wr take care of this memset? Also it seems
instead of the singalled flag to it we might just set that or
other flags later if we really want to.
> struct pi_context {
> struct ib_mr *prot_mr;
> - struct ib_fast_reg_page_list *prot_frpl;
> struct ib_mr *sig_mr;
> };
>
> struct fast_reg_descriptor {
> struct list_head list;
> struct ib_mr *data_mr;
> - struct ib_fast_reg_page_list *data_frpl;
> u8 ind;
> struct pi_context *pi_ctx;
As a follow on it might be worth to just kill off the separate
pi_context structure here.
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