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authorSebastian Sanchez <sebastian.sanchez@intel.com>2018-02-01 10:46:15 -0800
committerJason Gunthorpe <jgg@mellanox.com>2018-02-01 15:43:28 -0700
commitf150e2736f346a3171f002e660c3dfc653cc11cd (patch)
tree72dd1e10ecd6f5566d3d03d7b5362c24ac203ed5 /drivers/infiniband
parent9636258f103bac6853e280beecf9e85674736a6a (diff)
downloadlinux-f150e2736f346a3171f002e660c3dfc653cc11cd.tar.gz
IB/hfi1: Compute BTH only for RDMA_WRITE_LAST/SEND_LAST packet
In hfi1_rc_rcv(), BTH is computed for all packets received. However, it's only used for packets received with opcodes RDMA_WRITE_LAST and SEND_LAST, and it is a costly operation. Compute BTH only in the RDMA_WRITE_LAST/SEND_LAST code path and let the compiler handle endianness conversion for bitwise operations. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/hfi1/rc.c3
-rw-r--r--drivers/infiniband/hw/hfi1/uc.c3
-rw-r--r--drivers/infiniband/hw/hfi1/ud.c3
-rw-r--r--drivers/infiniband/hw/qib/qib_rc.c3
-rw-r--r--drivers/infiniband/hw/qib/qib_uc.c3
-rw-r--r--drivers/infiniband/hw/qib/qib_ud.c3
6 files changed, 6 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c
index 524c12f04bd9..70aa82b305d8 100644
--- a/drivers/infiniband/hw/hfi1/rc.c
+++ b/drivers/infiniband/hw/hfi1/rc.c
@@ -2035,7 +2035,6 @@ void hfi1_rc_rcv(struct hfi1_packet *packet)
struct rvt_qp *qp = packet->qp;
struct hfi1_ibport *ibp = rcd_to_iport(rcd);
struct ib_other_headers *ohdr = packet->ohdr;
- u32 bth0 = be32_to_cpu(ohdr->bth[0]);
u32 opcode = packet->opcode;
u32 hdrsize = packet->hlen;
u32 psn = ib_bth_get_psn(packet->ohdr);
@@ -2233,7 +2232,7 @@ send_last:
wc.port_num = 0;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (bth0 & IB_BTH_SOLICITED) != 0);
+ ib_bth_is_solicited(ohdr));
break;
case OP(RDMA_WRITE_ONLY):
diff --git a/drivers/infiniband/hw/hfi1/uc.c b/drivers/infiniband/hw/hfi1/uc.c
index fef69d98386c..8030c38a27f2 100644
--- a/drivers/infiniband/hw/hfi1/uc.c
+++ b/drivers/infiniband/hw/hfi1/uc.c
@@ -478,8 +478,7 @@ last_imm:
wc.port_num = 0;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ ib_bth_is_solicited(ohdr));
break;
case OP(RDMA_WRITE_FIRST):
diff --git a/drivers/infiniband/hw/hfi1/ud.c b/drivers/infiniband/hw/hfi1/ud.c
index 6b5cd3a86be4..cff2fd8907f5 100644
--- a/drivers/infiniband/hw/hfi1/ud.c
+++ b/drivers/infiniband/hw/hfi1/ud.c
@@ -1045,8 +1045,7 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
wc.port_num = qp->port_num;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ ib_bth_is_solicited(ohdr));
return;
drop:
diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c
index e4a9ba1dd9ba..61d3bc6771f0 100644
--- a/drivers/infiniband/hw/qib/qib_rc.c
+++ b/drivers/infiniband/hw/qib/qib_rc.c
@@ -1916,8 +1916,7 @@ send_last:
wc.port_num = 0;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ ib_bth_is_solicited(ohdr));
break;
case OP(RDMA_WRITE_FIRST):
diff --git a/drivers/infiniband/hw/qib/qib_uc.c b/drivers/infiniband/hw/qib/qib_uc.c
index bddcc37ace44..d311db6487cf 100644
--- a/drivers/infiniband/hw/qib/qib_uc.c
+++ b/drivers/infiniband/hw/qib/qib_uc.c
@@ -403,8 +403,7 @@ last_imm:
wc.port_num = 0;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ ib_bth_is_solicited(ohdr));
break;
case OP(RDMA_WRITE_FIRST):
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index 15962ed193ce..59a4f0333803 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -581,8 +581,7 @@ void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr,
wc.port_num = qp->port_num;
/* Signal completion event if the solicited bit is set. */
rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ ib_bth_is_solicited(ohdr));
return;
drop: