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Message-ID: <ada64gjxcel.fsf@cisco.com>
Date: Wed, 23 Aug 2006 16:25:38 -0700
From: Roland Dreier <rdreier@...co.com>
To: greg@...ah.com
Cc: openib-general@...nib.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] please pull infiniband.git
Greg, please pull from
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
This tree is also available from kernel.org mirrors at:
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
to get a few fixes for the 2.6.18 tree:
Jack Morgenstein:
IB/core: Fix SM LID/LID change with client reregister set
Michael S. Tsirkin:
IB/mthca: Make fence flag work for send work requests
IB/mthca: Update HCA firmware revisions
Roland Dreier:
IB/mthca: Fix potential AB-BA deadlock with CQ locks
IB/mthca: No userspace SRQs if HCA doesn't have SRQ support
drivers/infiniband/core/cache.c | 3 +
drivers/infiniband/core/sa_query.c | 3 +
drivers/infiniband/hw/mthca/mthca_main.c | 6 +--
drivers/infiniband/hw/mthca/mthca_provider.c | 11 +++--
drivers/infiniband/hw/mthca/mthca_provider.h | 4 +-
drivers/infiniband/hw/mthca/mthca_qp.c | 54 +++++++++++++++++++-------
6 files changed, 55 insertions(+), 26 deletions(-)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index e05ca2c..75313ad 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -301,7 +301,8 @@ static void ib_cache_event(struct ib_eve
event->event == IB_EVENT_PORT_ACTIVE ||
event->event == IB_EVENT_LID_CHANGE ||
event->event == IB_EVENT_PKEY_CHANGE ||
- event->event == IB_EVENT_SM_CHANGE) {
+ event->event == IB_EVENT_SM_CHANGE ||
+ event->event == IB_EVENT_CLIENT_REREGISTER) {
work = kmalloc(sizeof *work, GFP_ATOMIC);
if (work) {
INIT_WORK(&work->work, ib_cache_task, work);
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index aeda484..d6b8422 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -405,7 +405,8 @@ static void ib_sa_event(struct ib_event_
event->event == IB_EVENT_PORT_ACTIVE ||
event->event == IB_EVENT_LID_CHANGE ||
event->event == IB_EVENT_PKEY_CHANGE ||
- event->event == IB_EVENT_SM_CHANGE) {
+ event->event == IB_EVENT_SM_CHANGE ||
+ event->event == IB_EVENT_CLIENT_REREGISTER) {
struct ib_sa_device *sa_dev;
sa_dev = container_of(handler, typeof(*sa_dev), event_handler);
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 557cde3..7b82c19 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -967,12 +967,12 @@ static struct {
} mthca_hca_table[] = {
[TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
.flags = 0 },
- [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400),
+ [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600),
.flags = MTHCA_FLAG_PCIE },
- [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0),
+ [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400),
.flags = MTHCA_FLAG_MEMFREE |
MTHCA_FLAG_PCIE },
- [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800),
+ [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 1, 0),
.flags = MTHCA_FLAG_MEMFREE |
MTHCA_FLAG_PCIE |
MTHCA_FLAG_SINAI_OPT }
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 230ae21..265b1d1 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1287,11 +1287,7 @@ int mthca_register_device(struct mthca_d
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
- (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
- (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
- (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
- (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
- (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
+ (1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
dev->ib_dev.node_type = IB_NODE_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
dev->ib_dev.dma_device = &dev->pdev->dev;
@@ -1316,6 +1312,11 @@ int mthca_register_device(struct mthca_d
dev->ib_dev.modify_srq = mthca_modify_srq;
dev->ib_dev.query_srq = mthca_query_srq;
dev->ib_dev.destroy_srq = mthca_destroy_srq;
+ dev->ib_dev.uverbs_cmd_mask |=
+ (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
if (mthca_is_memfree(dev))
dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv;
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 8de2887..9a5bece 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -136,8 +136,8 @@ struct mthca_ah {
* We have one global lock that protects dev->cq/qp_table. Each
* struct mthca_cq/qp also has its own lock. An individual qp lock
* may be taken inside of an individual cq lock. Both cqs attached to
- * a qp may be locked, with the send cq locked first. No other
- * nesting should be done.
+ * a qp may be locked, with the cq with the lower cqn locked first.
+ * No other nesting should be done.
*
* Each struct mthca_cq/qp also has an ref count, protected by the
* corresponding table lock. The pointer from the cq/qp_table to the
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index cd8b672..2e8f6f3 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -99,6 +99,10 @@ enum {
MTHCA_QP_BIT_RSC = 1 << 3
};
+enum {
+ MTHCA_SEND_DOORBELL_FENCE = 1 << 5
+};
+
struct mthca_qp_path {
__be32 port_pkey;
u8 rnr_retry;
@@ -1259,6 +1263,32 @@ int mthca_alloc_qp(struct mthca_dev *dev
return 0;
}
+static void mthca_lock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
+{
+ if (send_cq == recv_cq)
+ spin_lock_irq(&send_cq->lock);
+ else if (send_cq->cqn < recv_cq->cqn) {
+ spin_lock_irq(&send_cq->lock);
+ spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
+ } else {
+ spin_lock_irq(&recv_cq->lock);
+ spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
+ }
+}
+
+static void mthca_unlock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
+{
+ if (send_cq == recv_cq)
+ spin_unlock_irq(&send_cq->lock);
+ else if (send_cq->cqn < recv_cq->cqn) {
+ spin_unlock(&recv_cq->lock);
+ spin_unlock_irq(&send_cq->lock);
+ } else {
+ spin_unlock(&send_cq->lock);
+ spin_unlock_irq(&recv_cq->lock);
+ }
+}
+
int mthca_alloc_sqp(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_cq *send_cq,
@@ -1311,17 +1341,13 @@ int mthca_alloc_sqp(struct mthca_dev *de
* Lock CQs here, so that CQ polling code can do QP lookup
* without taking a lock.
*/
- spin_lock_irq(&send_cq->lock);
- if (send_cq != recv_cq)
- spin_lock(&recv_cq->lock);
+ mthca_lock_cqs(send_cq, recv_cq);
spin_lock(&dev->qp_table.lock);
mthca_array_clear(&dev->qp_table.qp, mqpn);
spin_unlock(&dev->qp_table.lock);
- if (send_cq != recv_cq)
- spin_unlock(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ mthca_unlock_cqs(send_cq, recv_cq);
err_out:
dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size,
@@ -1355,9 +1381,7 @@ void mthca_free_qp(struct mthca_dev *dev
* Lock CQs here, so that CQ polling code can do QP lookup
* without taking a lock.
*/
- spin_lock_irq(&send_cq->lock);
- if (send_cq != recv_cq)
- spin_lock(&recv_cq->lock);
+ mthca_lock_cqs(send_cq, recv_cq);
spin_lock(&dev->qp_table.lock);
mthca_array_clear(&dev->qp_table.qp,
@@ -1365,9 +1389,7 @@ void mthca_free_qp(struct mthca_dev *dev
--qp->refcount;
spin_unlock(&dev->qp_table.lock);
- if (send_cq != recv_cq)
- spin_unlock(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ mthca_unlock_cqs(send_cq, recv_cq);
wait_event(qp->wait, !get_qp_refcount(dev, qp));
@@ -1502,7 +1524,7 @@ int mthca_tavor_post_send(struct ib_qp *
int i;
int size;
int size0 = 0;
- u32 f0 = 0;
+ u32 f0;
int ind;
u8 op0 = 0;
@@ -1686,6 +1708,8 @@ int mthca_tavor_post_send(struct ib_qp *
if (!size0) {
size0 = size;
op0 = mthca_opcode[wr->opcode];
+ f0 = wr->send_flags & IB_SEND_FENCE ?
+ MTHCA_SEND_DOORBELL_FENCE : 0;
}
++ind;
@@ -1843,7 +1867,7 @@ int mthca_arbel_post_send(struct ib_qp *
int i;
int size;
int size0 = 0;
- u32 f0 = 0;
+ u32 f0;
int ind;
u8 op0 = 0;
@@ -2051,6 +2075,8 @@ int mthca_arbel_post_send(struct ib_qp *
if (!size0) {
size0 = size;
op0 = mthca_opcode[wr->opcode];
+ f0 = wr->send_flags & IB_SEND_FENCE ?
+ MTHCA_SEND_DOORBELL_FENCE : 0;
}
++ind;
-
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