RDMA/amso1100: Add support for "send with invalidate" work requests
Handle IB_WR_SEND_WITH_INV work requests.
This resurrects a patch sent long ago by Mikkel Hagen <mhagen@iol.unh.edu>.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c
index 9190bd5..a6d8944 100644
--- a/drivers/infiniband/hw/amso1100/c2_qp.c
+++ b/drivers/infiniband/hw/amso1100/c2_qp.c
@@ -811,16 +811,24 @@
switch (ib_wr->opcode) {
case IB_WR_SEND:
- if (ib_wr->send_flags & IB_SEND_SOLICITED) {
- c2_wr_set_id(&wr, C2_WR_TYPE_SEND_SE);
- msg_size = sizeof(struct c2wr_send_req);
+ case IB_WR_SEND_WITH_INV:
+ if (ib_wr->opcode == IB_WR_SEND) {
+ if (ib_wr->send_flags & IB_SEND_SOLICITED)
+ c2_wr_set_id(&wr, C2_WR_TYPE_SEND_SE);
+ else
+ c2_wr_set_id(&wr, C2_WR_TYPE_SEND);
+ wr.sqwr.send.remote_stag = 0;
} else {
- c2_wr_set_id(&wr, C2_WR_TYPE_SEND);
- msg_size = sizeof(struct c2wr_send_req);
+ if (ib_wr->send_flags & IB_SEND_SOLICITED)
+ c2_wr_set_id(&wr, C2_WR_TYPE_SEND_SE_INV);
+ else
+ c2_wr_set_id(&wr, C2_WR_TYPE_SEND_INV);
+ wr.sqwr.send.remote_stag =
+ cpu_to_be32(ib_wr->ex.invalidate_rkey);
}
- wr.sqwr.send.remote_stag = 0;
- msg_size += sizeof(struct c2_data_addr) * ib_wr->num_sge;
+ msg_size = sizeof(struct c2wr_send_req) +
+ sizeof(struct c2_data_addr) * ib_wr->num_sge;
if (ib_wr->num_sge > qp->send_sgl_depth) {
err = -EINVAL;
break;
diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c
index b1441aeb..9a054c6 100644
--- a/drivers/infiniband/hw/amso1100/c2_rnic.c
+++ b/drivers/infiniband/hw/amso1100/c2_rnic.c
@@ -455,7 +455,8 @@
IB_DEVICE_CURR_QP_STATE_MOD |
IB_DEVICE_SYS_IMAGE_GUID |
IB_DEVICE_ZERO_STAG |
- IB_DEVICE_MEM_WINDOW);
+ IB_DEVICE_MEM_WINDOW |
+ IB_DEVICE_SEND_W_INV);
/* Allocate the qptr_array */
c2dev->qptr_array = vmalloc(C2_MAX_CQS * sizeof(void *));