xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/hfi1: Access hfi1_ibport through rcd pointer

Browse Source 
Receive code paths use the QP's device and port
number to access the struct hfi1_ibport. When an
instance of struct hfi1_ctxtdata is present, it can
be used to access struct hfi1_ibport through a pointer.
This makes struct hfi1_ibport lookup time faster as an
array doesn't have to be indexed and access fields in
other cache-lines.

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: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sebastian Sanchez
2017-02-08 05:26:25 -08:00
committed by Doug Ledford
parent a8715b97d6
commit f3e862cb68
6 changed files with 16 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/infiniband/hw/hfi1/rc.c
View File

@@ -841,7 +841,7 @@ bail_no_tx:
void hfi1_send_rc_ack(struct hfi1_ctxtdata *rcd, struct rvt_qp *qp,
int is_fecn)
{
struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
struct hfi1_ibport *ibp = rcd_to_iport(rcd);
struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
u64 pbc, pbc_flags = 0;
u16 lrh0;
@@ -1326,7 +1326,7 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
if (aeth >> 29)
ack_psn--;
wqe = rvt_get_swqe_ptr(qp, qp->s_acked);
ibp = to_iport(qp->ibqp.device, qp->port_num);
ibp = rcd_to_iport(rcd);
/*
* The MSN might be for a later WQE than the PSN indicates so
@@ -1791,7 +1791,7 @@ static noinline int rc_rcv_error(struct ib_other_headers *ohdr, void *data,
struct rvt_qp *qp, u32 opcode, u32 psn,
int diff, struct hfi1_ctxtdata *rcd)
{
struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
struct hfi1_ibport *ibp = rcd_to_iport(rcd);
struct rvt_ack_entry *e;
unsigned long flags;
u8 i, prev;
@@ -2100,7 +2100,7 @@ void hfi1_rc_rcv(struct hfi1_packet *packet)
void *data = packet->ebuf;
u32 tlen = packet->tlen;
struct rvt_qp *qp = packet->qp;
struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
struct hfi1_ibport *ibp = rcd_to_iport(rcd);
struct ib_other_headers *ohdr = packet->ohdr;
u32 bth0, opcode;
u32 hdrsize = packet->hlen;
@@ -2552,7 +2552,7 @@ void hfi1_rc_hdrerr(
{
int has_grh = rcv_flags & HFI1_HAS_GRH;
struct ib_other_headers *ohdr;
struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
struct hfi1_ibport *ibp = rcd_to_iport(rcd);
int diff;
u32 opcode;
u32 psn, bth0;