From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>,
Dennis Dalessandro <dennis.dalessandro@intel.com>,
Doug Ledford <dledford@redhat.com>,
Sasha Levin <sashal@kernel.org>,
linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 5.1 78/95] IB/hfi1: Create inline to get extended headers
Date: Wed, 26 Jun 2019 20:30:03 -0400 [thread overview]
Message-ID: <20190627003021.19867-78-sashal@kernel.org> (raw)
In-Reply-To: <20190627003021.19867-1-sashal@kernel.org>
From: Mike Marciniszyn <mike.marciniszyn@intel.com>
[ Upstream commit 9755f72496664eec70bc804104118b5797b6bf63 ]
This paves the way for another patch that reacts to a
flush sdma completion for RC.
Fixes: 81cd3891f021 ("IB/hfi1: Add support for 16B Management Packets")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hfi1/hfi.h | 31 +++++++++++++++++++++++++++++++
drivers/infiniband/hw/hfi1/rc.c | 21 +--------------------
2 files changed, 32 insertions(+), 20 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index 048b5d73ba39..d85b16a3aaaf 100644
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -539,6 +539,37 @@ static inline void hfi1_16B_set_qpn(struct opa_16b_mgmt *mgmt,
mgmt->src_qpn = cpu_to_be32(src_qp & OPA_16B_MGMT_QPN_MASK);
}
+/**
+ * hfi1_get_rc_ohdr - get extended header
+ * @opah - the opaheader
+ */
+static inline struct ib_other_headers *
+hfi1_get_rc_ohdr(struct hfi1_opa_header *opah)
+{
+ struct ib_other_headers *ohdr;
+ struct ib_header *hdr = NULL;
+ struct hfi1_16b_header *hdr_16b = NULL;
+
+ /* Find out where the BTH is */
+ if (opah->hdr_type == HFI1_PKT_TYPE_9B) {
+ hdr = &opah->ibh;
+ if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
+ ohdr = &hdr->u.oth;
+ else
+ ohdr = &hdr->u.l.oth;
+ } else {
+ u8 l4;
+
+ hdr_16b = &opah->opah;
+ l4 = hfi1_16B_get_l4(hdr_16b);
+ if (l4 == OPA_16B_L4_IB_LOCAL)
+ ohdr = &hdr_16b->u.oth;
+ else
+ ohdr = &hdr_16b->u.l.oth;
+ }
+ return ohdr;
+}
+
struct rvt_sge_state;
/*
diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c
index 5991211d72bd..82f101878e33 100644
--- a/drivers/infiniband/hw/hfi1/rc.c
+++ b/drivers/infiniband/hw/hfi1/rc.c
@@ -1711,8 +1711,6 @@ void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah)
struct ib_other_headers *ohdr;
struct hfi1_qp_priv *priv = qp->priv;
struct rvt_swqe *wqe;
- struct ib_header *hdr = NULL;
- struct hfi1_16b_header *hdr_16b = NULL;
u32 opcode, head, tail;
u32 psn;
struct tid_rdma_request *req;
@@ -1721,24 +1719,7 @@ void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah)
if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK))
return;
- /* Find out where the BTH is */
- if (priv->hdr_type == HFI1_PKT_TYPE_9B) {
- hdr = &opah->ibh;
- if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
- ohdr = &hdr->u.oth;
- else
- ohdr = &hdr->u.l.oth;
- } else {
- u8 l4;
-
- hdr_16b = &opah->opah;
- l4 = hfi1_16B_get_l4(hdr_16b);
- if (l4 == OPA_16B_L4_IB_LOCAL)
- ohdr = &hdr_16b->u.oth;
- else
- ohdr = &hdr_16b->u.l.oth;
- }
-
+ ohdr = hfi1_get_rc_ohdr(opah);
opcode = ib_bth_get_opcode(ohdr);
if ((opcode >= OP(RDMA_READ_RESPONSE_FIRST) &&
opcode <= OP(ATOMIC_ACKNOWLEDGE)) ||
--
2.20.1
next parent reply other threads:[~2019-06-27 0:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190627003021.19867-1-sashal@kernel.org>
2019-06-27 0:30 ` Sasha Levin [this message]
2019-06-27 0:30 ` [PATCH AUTOSEL 5.1 79/95] IB/hfi1: Use aborts to trigger RC throttling Sasha Levin
2019-06-27 0:30 ` [PATCH AUTOSEL 5.1 80/95] IB/hfi1: Wakeup QPs orphaned on wait list after flush Sasha Levin
2019-06-27 0:30 ` [PATCH AUTOSEL 5.1 81/95] IB/hfi1: Handle wakeup of orphaned QPs for pio Sasha Levin
2019-06-27 0:30 ` [PATCH AUTOSEL 5.1 82/95] IB/hfi1: Handle port down properly in pio Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190627003021.19867-78-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=dennis.dalessandro@intel.com \
--cc=dledford@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=mike.marciniszyn@intel.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox