Re: [PATCH v1 08/10] iser-target: Support the remote invalidation exception

[Or Gerlitz <gerlitz.or-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Tue, Nov 24, 2015 at 6:23 PM, Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> wrote:
> @@ -1100,7 +1122,14 @@ isert_init_send_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
>
>         isert_cmd->rdma_wr.iser_ib_op = ISER_IB_SEND;
>         send_wr->wr_id = (uintptr_t)&isert_cmd->tx_desc;
> -       send_wr->opcode = IB_WR_SEND;
> +
> +       if (isert_conn->snd_w_inv && isert_cmd->inv_rkey) {
> +               send_wr->opcode  = IB_WR_SEND_WITH_INV;
> +               send_wr->ex.invalidate_rkey = isert_cmd->inv_rkey;
> +       } else {
> +               send_wr->opcode = IB_WR_SEND;
> +       }
> +

> @@ -1489,6 +1518,7 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
>                 isert_cmd->read_va = read_va;
>                 isert_cmd->write_stag = write_stag;
>                 isert_cmd->write_va = write_va;
> +               isert_cmd->inv_rkey = read_stag ? read_stag : write_stag;

bug

what happens for commands for which we don't register any memory, TUR and such?

Or.
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