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authorSean Hefty <sean.hefty@intel.com>2011-05-23 16:31:36 -0700
committerRoland Dreier <roland@purestorage.com>2011-10-13 09:13:26 -0700
commit96104eda01695a26da2c8f7423ec0ba3509c8c97 (patch)
tree04e38bfe564245ebd9a62738d54a111b2d24da4a
parent59991f94eb32e954aa767f659eb642461e9e8b37 (diff)
RDMA/core: Add SRQ type field
Currently, there is only a single ("basic") type of SRQ, but with XRC support we will add a second. Prepare for this by defining an SRQ type and setting all current users to IB_SRQT_BASIC. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r--drivers/infiniband/core/uverbs_cmd.c1
-rw-r--r--drivers/infiniband/core/verbs.c1
-rw-r--r--drivers/infiniband/hw/ehca/ehca_qp.c3
-rw-r--r--drivers/infiniband/hw/ipath/ipath_srq.c5
-rw-r--r--drivers/infiniband/hw/mlx4/srq.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c3
-rw-r--r--drivers/infiniband/hw/qib/qib_srq.c5
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_cm.c1
-rw-r--r--include/rdma/ib_verbs.h6
9 files changed, 28 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index c42699285f8..48d21d09afe 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2013,6 +2013,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
attr.event_handler = ib_uverbs_srq_event_handler;
attr.srq_context = file;
+ attr.srq_type = IB_SRQT_BASIC;
attr.attr.max_wr = cmd.max_wr;
attr.attr.max_sge = cmd.max_sge;
attr.attr.srq_limit = cmd.srq_limit;
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 5e03ab78fc8..cbe85ddaf89 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -250,6 +250,7 @@ struct ib_srq *ib_create_srq(struct ib_pd *pd,
srq->uobject = NULL;
srq->event_handler = srq_init_attr->event_handler;
srq->srq_context = srq_init_attr->srq_context;
+ srq->srq_type = srq_init_attr->srq_type;
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
}
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index 32fb34201ab..964f8552079 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -977,6 +977,9 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd,
struct hcp_modify_qp_control_block *mqpcb;
u64 hret, update_mask;
+ if (srq_init_attr->srq_type != IB_SRQT_BASIC)
+ return ERR_PTR(-ENOSYS);
+
/* For common attributes, internal_create_qp() takes its info
* out of qp_init_attr, so copy all common attrs there.
*/
diff --git a/drivers/infiniband/hw/ipath/ipath_srq.c b/drivers/infiniband/hw/ipath/ipath_srq.c
index 386e2c717c5..26271984b71 100644
--- a/drivers/infiniband/hw/ipath/ipath_srq.c
+++ b/drivers/infiniband/hw/ipath/ipath_srq.c
@@ -107,6 +107,11 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
u32 sz;
struct ib_srq *ret;
+ if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
+ ret = ERR_PTR(-ENOSYS);
+ goto done;
+ }
+
if (srq_init_attr->attr.max_wr == 0) {
ret = ERR_PTR(-EINVAL);
goto done;
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index 818b7ecace5..4f7f7600d27 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -81,6 +81,9 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
int err;
int i;
+ if (init_attr->srq_type != IB_SRQT_BASIC)
+ return ERR_PTR(-ENOSYS);
+
/* Sanity check SRQ size before proceeding */
if (init_attr->attr.max_wr >= dev->dev->caps.max_srq_wqes ||
init_attr->attr.max_sge > dev->dev->caps.max_srq_sge)
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 365fe0e1419..cb9a0b97680 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -438,6 +438,9 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
struct mthca_srq *srq;
int err;
+ if (init_attr->srq_type != IB_SRQT_BASIC)
+ return ERR_PTR(-ENOSYS);
+
srq = kmalloc(sizeof *srq, GFP_KERNEL);
if (!srq)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/hw/qib/qib_srq.c b/drivers/infiniband/hw/qib/qib_srq.c
index c3ec8efc2ed..d6235931a1b 100644
--- a/drivers/infiniband/hw/qib/qib_srq.c
+++ b/drivers/infiniband/hw/qib/qib_srq.c
@@ -107,6 +107,11 @@ struct ib_srq *qib_create_srq(struct ib_pd *ibpd,
u32 sz;
struct ib_srq *ret;
+ if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
+ ret = ERR_PTR(-ENOSYS);
+ goto done;
+ }
+
if (srq_init_attr->attr.max_sge == 0 ||
srq_init_attr->attr.max_sge > ib_qib_max_srq_sges ||
srq_init_attr->attr.max_wr == 0 ||
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 39913a065f9..ef003cc54a4 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -1496,6 +1496,7 @@ static void ipoib_cm_create_srq(struct net_device *dev, int max_sge)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_srq_init_attr srq_init_attr = {
+ .srq_type = IB_SRQT_BASIC,
.attr = {
.max_wr = ipoib_recvq_size,
.max_sge = max_sge
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index d2a5c9b991d..d0c2dc03405 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -523,6 +523,10 @@ enum ib_cq_notify_flags {
IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
};
+enum ib_srq_type {
+ IB_SRQT_BASIC
+};
+
enum ib_srq_attr_mask {
IB_SRQ_MAX_WR = 1 << 0,
IB_SRQ_LIMIT = 1 << 1,
@@ -538,6 +542,7 @@ struct ib_srq_init_attr {
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
struct ib_srq_attr attr;
+ enum ib_srq_type srq_type;
};
struct ib_qp_cap {
@@ -888,6 +893,7 @@ struct ib_srq {
struct ib_uobject *uobject;
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
+ enum ib_srq_type srq_type;
atomic_t usecnt;
};