* [PATCH rdma-next v1 01/10] RDMA/mlx5: Embed GSI QP into general mlx5_ib QP
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 02/10] RDMA/mlx5: Reuse existing fields in parent QP storage object Leon Romanovsky
` (9 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb
From: Leon Romanovsky <leonro@nvidia.com>
The GSI QPs have different create flow from the regular QPs, but it is
not really needed. Update the code to use mlx5_ib_qp as a storage class
for all outside of GSI calls.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/gsi.c | 38 +++++++---------------------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 25 +++++++++++++++---
drivers/infiniband/hw/mlx5/qp.c | 2 +-
3 files changed, 32 insertions(+), 33 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/gsi.c b/drivers/infiniband/hw/mlx5/gsi.c
index d9f300f78a82..0b18558ba7b0 100644
--- a/drivers/infiniband/hw/mlx5/gsi.c
+++ b/drivers/infiniband/hw/mlx5/gsi.c
@@ -39,26 +39,6 @@ struct mlx5_ib_gsi_wr {
bool completed:1;
};
-struct mlx5_ib_gsi_qp {
- struct ib_qp ibqp;
- struct ib_qp *rx_qp;
- u8 port_num;
- struct ib_qp_cap cap;
- enum ib_sig_type sq_sig_type;
- /* Serialize qp state modifications */
- struct mutex mutex;
- struct ib_cq *cq;
- struct mlx5_ib_gsi_wr *outstanding_wrs;
- u32 outstanding_pi, outstanding_ci;
- int num_qps;
- /* Protects access to the tx_qps. Post send operations synchronize
- * with tx_qp creation in setup_qp(). Also protects the
- * outstanding_wrs array and indices.
- */
- spinlock_t lock;
- struct ib_qp **tx_qps;
-};
-
static struct mlx5_ib_gsi_qp *gsi_qp(struct ib_qp *qp)
{
return container_of(qp, struct mlx5_ib_gsi_qp, ibqp);
@@ -116,6 +96,7 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
+ struct mlx5_ib_qp *mqp;
struct mlx5_ib_gsi_qp *gsi;
struct ib_qp_init_attr hw_init_attr = *init_attr;
const u8 port_num = init_attr->port_num;
@@ -130,10 +111,11 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
num_qps = MLX5_MAX_PORTS;
}
- gsi = kzalloc(sizeof(*gsi), GFP_KERNEL);
- if (!gsi)
+ mqp = kzalloc(sizeof(struct mlx5_ib_qp), GFP_KERNEL);
+ if (!mqp)
return ERR_PTR(-ENOMEM);
+ gsi = &mqp->gsi;
gsi->tx_qps = kcalloc(num_qps, sizeof(*gsi->tx_qps), GFP_KERNEL);
if (!gsi->tx_qps) {
ret = -ENOMEM;
@@ -216,20 +198,18 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
err_free_tx:
kfree(gsi->tx_qps);
err_free:
- kfree(gsi);
+ kfree(mqp);
return ERR_PTR(ret);
}
-int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp)
+int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp)
{
- struct mlx5_ib_dev *dev = to_mdev(qp->device);
- struct mlx5_ib_gsi_qp *gsi = gsi_qp(qp);
+ struct mlx5_ib_dev *dev = to_mdev(mqp->ibqp.device);
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
const int port_num = gsi->port_num;
int qp_index;
int ret;
- mlx5_ib_dbg(dev, "destroying GSI QP\n");
-
mutex_lock(&dev->devr.mutex);
ret = mlx5_ib_destroy_qp(gsi->rx_qp, NULL);
if (ret) {
@@ -253,7 +233,7 @@ int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp)
kfree(gsi->outstanding_wrs);
kfree(gsi->tx_qps);
- kfree(gsi);
+ kfree(mqp);
return 0;
}
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 3856ee3854f6..384590d8402c 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -384,6 +384,26 @@ struct mlx5_ib_dct {
u32 *in;
};
+struct mlx5_ib_gsi_qp {
+ struct ib_qp ibqp;
+ struct ib_qp *rx_qp;
+ u8 port_num;
+ struct ib_qp_cap cap;
+ enum ib_sig_type sq_sig_type;
+ /* Serialize qp state modifications */
+ struct mutex mutex;
+ struct ib_cq *cq;
+ struct mlx5_ib_gsi_wr *outstanding_wrs;
+ u32 outstanding_pi, outstanding_ci;
+ int num_qps;
+ /* Protects access to the tx_qps. Post send operations synchronize
+ * with tx_qp creation in setup_qp(). Also protects the
+ * outstanding_wrs array and indices.
+ */
+ spinlock_t lock;
+ struct ib_qp **tx_qps;
+};
+
struct mlx5_ib_qp {
struct ib_qp ibqp;
union {
@@ -391,6 +411,7 @@ struct mlx5_ib_qp {
struct mlx5_ib_raw_packet_qp raw_packet_qp;
struct mlx5_ib_rss_qp rss_qp;
struct mlx5_ib_dct dct;
+ struct mlx5_ib_gsi_qp gsi;
};
struct mlx5_frag_buf buf;
@@ -693,8 +714,6 @@ struct mlx5_mr_cache {
unsigned long last_add;
};
-struct mlx5_ib_gsi_qp;
-
struct mlx5_ib_port_resources {
struct mlx5_ib_resources *devr;
struct mlx5_ib_gsi_qp *gsi;
@@ -1322,7 +1341,7 @@ void mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev, u8 port_num);
/* GSI QP helper functions */
struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr);
-int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp);
+int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp);
int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
int attr_mask);
int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index e8dd32d6a7ab..92dda0e50f5d 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -3037,7 +3037,7 @@ int mlx5_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
struct mlx5_ib_qp *mqp = to_mqp(qp);
if (unlikely(qp->qp_type == IB_QPT_GSI))
- return mlx5_ib_gsi_destroy_qp(qp);
+ return mlx5_ib_destroy_gsi(mqp);
if (mqp->type == MLX5_IB_QPT_DCT)
return mlx5_ib_destroy_dct(mqp);
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 02/10] RDMA/mlx5: Reuse existing fields in parent QP storage object
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 01/10] RDMA/mlx5: Embed GSI QP into general mlx5_ib QP Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 03/10] RDMA/mlx5: Change GSI QP to have same creation flow like other QPs Leon Romanovsky
` (8 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb
From: Leon Romanovsky <leonro@nvidia.com>
Remove duplication of mlx5_ib_qp and mlx5_ib_gsi_qp fields.
This change returns the memory footprint of mlx5_ib QP to be
as it was before embedding GSI QP.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/gsi.c | 66 +++++++++++++---------------
drivers/infiniband/hw/mlx5/main.c | 6 +--
drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 --
3 files changed, 31 insertions(+), 45 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/gsi.c b/drivers/infiniband/hw/mlx5/gsi.c
index 0b18558ba7b0..53c2b8a8c0fb 100644
--- a/drivers/infiniband/hw/mlx5/gsi.c
+++ b/drivers/infiniband/hw/mlx5/gsi.c
@@ -39,20 +39,16 @@ struct mlx5_ib_gsi_wr {
bool completed:1;
};
-static struct mlx5_ib_gsi_qp *gsi_qp(struct ib_qp *qp)
-{
- return container_of(qp, struct mlx5_ib_gsi_qp, ibqp);
-}
-
static bool mlx5_ib_deth_sqpn_cap(struct mlx5_ib_dev *dev)
{
return MLX5_CAP_GEN(dev->mdev, set_deth_sqpn);
}
/* Call with gsi->lock locked */
-static void generate_completions(struct mlx5_ib_gsi_qp *gsi)
+static void generate_completions(struct mlx5_ib_qp *mqp)
{
- struct ib_cq *gsi_cq = gsi->ibqp.send_cq;
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
+ struct ib_cq *gsi_cq = mqp->ibqp.send_cq;
struct mlx5_ib_gsi_wr *wr;
u32 index;
@@ -78,6 +74,7 @@ static void handle_single_completion(struct ib_cq *cq, struct ib_wc *wc)
struct mlx5_ib_gsi_qp *gsi = cq->cq_context;
struct mlx5_ib_gsi_wr *wr =
container_of(wc->wr_cqe, struct mlx5_ib_gsi_wr, cqe);
+ struct mlx5_ib_qp *mqp = container_of(gsi, struct mlx5_ib_qp, gsi);
u64 wr_id;
unsigned long flags;
@@ -86,9 +83,9 @@ static void handle_single_completion(struct ib_cq *cq, struct ib_wc *wc)
wr_id = wr->wc.wr_id;
wr->wc = *wc;
wr->wc.wr_id = wr_id;
- wr->wc.qp = &gsi->ibqp;
+ wr->wc.qp = &mqp->ibqp;
- generate_completions(gsi);
+ generate_completions(mqp);
spin_unlock_irqrestore(&gsi->lock, flags);
}
@@ -130,7 +127,7 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
goto err_free_tx;
}
- mutex_init(&gsi->mutex);
+ mutex_init(&mqp->mutex);
mutex_lock(&dev->devr.mutex);
@@ -145,7 +142,7 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
gsi->cap = init_attr->cap;
gsi->sq_sig_type = init_attr->sq_sig_type;
- gsi->ibqp.qp_num = 1;
+ mqp->ibqp.qp_num = 1;
gsi->port_num = port_num;
gsi->cq = ib_alloc_cq(pd->device, gsi, init_attr->cap.max_send_wr, 0,
@@ -188,7 +185,7 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
mutex_unlock(&dev->devr.mutex);
- return &gsi->ibqp;
+ return &mqp->ibqp;
err_destroy_cq:
ib_free_cq(gsi->cq);
@@ -362,56 +359,54 @@ static void setup_qp(struct mlx5_ib_gsi_qp *gsi, u16 qp_index)
static void setup_qps(struct mlx5_ib_gsi_qp *gsi)
{
+ struct mlx5_ib_dev *dev = to_mdev(gsi->rx_qp->device);
u16 qp_index;
+ mutex_lock(&dev->devr.mutex);
for (qp_index = 0; qp_index < gsi->num_qps; ++qp_index)
setup_qp(gsi, qp_index);
+ mutex_unlock(&dev->devr.mutex);
}
int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
int attr_mask)
{
struct mlx5_ib_dev *dev = to_mdev(qp->device);
- struct mlx5_ib_gsi_qp *gsi = gsi_qp(qp);
+ struct mlx5_ib_qp *mqp = to_mqp(qp);
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
int ret;
mlx5_ib_dbg(dev, "modifying GSI QP to state %d\n", attr->qp_state);
- mutex_lock(&gsi->mutex);
ret = ib_modify_qp(gsi->rx_qp, attr, attr_mask);
if (ret) {
mlx5_ib_warn(dev, "unable to modify GSI rx QP: %d\n", ret);
- goto unlock;
+ return ret;
}
if (to_mqp(gsi->rx_qp)->state == IB_QPS_RTS)
setup_qps(gsi);
-
-unlock:
- mutex_unlock(&gsi->mutex);
-
- return ret;
+ return 0;
}
int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
int qp_attr_mask,
struct ib_qp_init_attr *qp_init_attr)
{
- struct mlx5_ib_gsi_qp *gsi = gsi_qp(qp);
+ struct mlx5_ib_qp *mqp = to_mqp(qp);
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
int ret;
- mutex_lock(&gsi->mutex);
ret = ib_query_qp(gsi->rx_qp, qp_attr, qp_attr_mask, qp_init_attr);
qp_init_attr->cap = gsi->cap;
- mutex_unlock(&gsi->mutex);
-
return ret;
}
/* Call with gsi->lock locked */
-static int mlx5_ib_add_outstanding_wr(struct mlx5_ib_gsi_qp *gsi,
+static int mlx5_ib_add_outstanding_wr(struct mlx5_ib_qp *mqp,
struct ib_ud_wr *wr, struct ib_wc *wc)
{
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
struct mlx5_ib_dev *dev = to_mdev(gsi->rx_qp->device);
struct mlx5_ib_gsi_wr *gsi_wr;
@@ -440,22 +435,21 @@ static int mlx5_ib_add_outstanding_wr(struct mlx5_ib_gsi_qp *gsi,
}
/* Call with gsi->lock locked */
-static int mlx5_ib_gsi_silent_drop(struct mlx5_ib_gsi_qp *gsi,
- struct ib_ud_wr *wr)
+static int mlx5_ib_gsi_silent_drop(struct mlx5_ib_qp *mqp, struct ib_ud_wr *wr)
{
struct ib_wc wc = {
{ .wr_id = wr->wr.wr_id },
.status = IB_WC_SUCCESS,
.opcode = IB_WC_SEND,
- .qp = &gsi->ibqp,
+ .qp = &mqp->ibqp,
};
int ret;
- ret = mlx5_ib_add_outstanding_wr(gsi, wr, &wc);
+ ret = mlx5_ib_add_outstanding_wr(mqp, wr, &wc);
if (ret)
return ret;
- generate_completions(gsi);
+ generate_completions(mqp);
return 0;
}
@@ -482,7 +476,8 @@ static struct ib_qp *get_tx_qp(struct mlx5_ib_gsi_qp *gsi, struct ib_ud_wr *wr)
int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr,
const struct ib_send_wr **bad_wr)
{
- struct mlx5_ib_gsi_qp *gsi = gsi_qp(qp);
+ struct mlx5_ib_qp *mqp = to_mqp(qp);
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
struct ib_qp *tx_qp;
unsigned long flags;
int ret;
@@ -495,14 +490,14 @@ int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr,
spin_lock_irqsave(&gsi->lock, flags);
tx_qp = get_tx_qp(gsi, &cur_wr);
if (!tx_qp) {
- ret = mlx5_ib_gsi_silent_drop(gsi, &cur_wr);
+ ret = mlx5_ib_gsi_silent_drop(mqp, &cur_wr);
if (ret)
goto err;
spin_unlock_irqrestore(&gsi->lock, flags);
continue;
}
- ret = mlx5_ib_add_outstanding_wr(gsi, &cur_wr, NULL);
+ ret = mlx5_ib_add_outstanding_wr(mqp, &cur_wr, NULL);
if (ret)
goto err;
@@ -526,7 +521,8 @@ int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr,
int mlx5_ib_gsi_post_recv(struct ib_qp *qp, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr)
{
- struct mlx5_ib_gsi_qp *gsi = gsi_qp(qp);
+ struct mlx5_ib_qp *mqp = to_mqp(qp);
+ struct mlx5_ib_gsi_qp *gsi = &mqp->gsi;
return ib_post_recv(gsi->rx_qp, wr, bad_wr);
}
@@ -536,7 +532,5 @@ void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi)
if (!gsi)
return;
- mutex_lock(&gsi->mutex);
setup_qps(gsi);
- mutex_unlock(&gsi->mutex);
}
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index c4f1152962e9..f81040a6626f 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2716,9 +2716,7 @@ static void pkey_change_handler(struct work_struct *work)
container_of(work, struct mlx5_ib_port_resources,
pkey_change_work);
- mutex_lock(&ports->devr->mutex);
mlx5_ib_gsi_pkey_change(ports->gsi);
- mutex_unlock(&ports->devr->mutex);
}
static void mlx5_ib_handle_internal_error(struct mlx5_ib_dev *ibdev)
@@ -3144,11 +3142,9 @@ static int mlx5_ib_dev_res_init(struct mlx5_ib_dev *dev)
atomic_inc(&devr->p0->usecnt);
atomic_set(&devr->s1->usecnt, 0);
- for (port = 0; port < ARRAY_SIZE(devr->ports); ++port) {
+ for (port = 0; port < ARRAY_SIZE(devr->ports); ++port)
INIT_WORK(&devr->ports[port].pkey_change_work,
pkey_change_handler);
- devr->ports[port].devr = devr;
- }
return 0;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 384590d8402c..a70cc4a24b7c 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -385,13 +385,10 @@ struct mlx5_ib_dct {
};
struct mlx5_ib_gsi_qp {
- struct ib_qp ibqp;
struct ib_qp *rx_qp;
u8 port_num;
struct ib_qp_cap cap;
enum ib_sig_type sq_sig_type;
- /* Serialize qp state modifications */
- struct mutex mutex;
struct ib_cq *cq;
struct mlx5_ib_gsi_wr *outstanding_wrs;
u32 outstanding_pi, outstanding_ci;
@@ -715,7 +712,6 @@ struct mlx5_mr_cache {
};
struct mlx5_ib_port_resources {
- struct mlx5_ib_resources *devr;
struct mlx5_ib_gsi_qp *gsi;
struct work_struct pkey_change_work;
};
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 03/10] RDMA/mlx5: Change GSI QP to have same creation flow like other QPs
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 01/10] RDMA/mlx5: Embed GSI QP into general mlx5_ib QP Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 02/10] RDMA/mlx5: Reuse existing fields in parent QP storage object Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 04/10] RDMA/mlx5: Delete not needed GSI QP signal QP type Leon Romanovsky
` (7 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb
From: Leon Romanovsky <leonro@nvidia.com>
There is no reason to have separate create flow for the GSI QP,
while general create_qp routine has all needed checks and ability to
allocate and free the proper struct mlx5_ib_qp.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/gsi.c | 42 ++++++++++------------------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 6 ++--
drivers/infiniband/hw/mlx5/qp.c | 36 +++++++++++++-----------
3 files changed, 38 insertions(+), 46 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/gsi.c b/drivers/infiniband/hw/mlx5/gsi.c
index 53c2b8a8c0fb..f5aa1167cb9c 100644
--- a/drivers/infiniband/hw/mlx5/gsi.c
+++ b/drivers/infiniband/hw/mlx5/gsi.c
@@ -89,14 +89,13 @@ static void handle_single_completion(struct ib_cq *cq, struct ib_wc *wc)
spin_unlock_irqrestore(&gsi->lock, flags);
}
-struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr)
+int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp,
+ struct ib_qp_init_attr *attr)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
- struct mlx5_ib_qp *mqp;
struct mlx5_ib_gsi_qp *gsi;
- struct ib_qp_init_attr hw_init_attr = *init_attr;
- const u8 port_num = init_attr->port_num;
+ struct ib_qp_init_attr hw_init_attr = *attr;
+ const u8 port_num = attr->port_num;
int num_qps = 0;
int ret;
@@ -108,27 +107,19 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
num_qps = MLX5_MAX_PORTS;
}
- mqp = kzalloc(sizeof(struct mlx5_ib_qp), GFP_KERNEL);
- if (!mqp)
- return ERR_PTR(-ENOMEM);
-
gsi = &mqp->gsi;
gsi->tx_qps = kcalloc(num_qps, sizeof(*gsi->tx_qps), GFP_KERNEL);
- if (!gsi->tx_qps) {
- ret = -ENOMEM;
- goto err_free;
- }
+ if (!gsi->tx_qps)
+ return -ENOMEM;
- gsi->outstanding_wrs = kcalloc(init_attr->cap.max_send_wr,
- sizeof(*gsi->outstanding_wrs),
- GFP_KERNEL);
+ gsi->outstanding_wrs =
+ kcalloc(attr->cap.max_send_wr, sizeof(*gsi->outstanding_wrs),
+ GFP_KERNEL);
if (!gsi->outstanding_wrs) {
ret = -ENOMEM;
goto err_free_tx;
}
- mutex_init(&mqp->mutex);
-
mutex_lock(&dev->devr.mutex);
if (dev->devr.ports[port_num - 1].gsi) {
@@ -140,12 +131,11 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
gsi->num_qps = num_qps;
spin_lock_init(&gsi->lock);
- gsi->cap = init_attr->cap;
- gsi->sq_sig_type = init_attr->sq_sig_type;
- mqp->ibqp.qp_num = 1;
+ gsi->cap = attr->cap;
+ gsi->sq_sig_type = attr->sq_sig_type;
gsi->port_num = port_num;
- gsi->cq = ib_alloc_cq(pd->device, gsi, init_attr->cap.max_send_wr, 0,
+ gsi->cq = ib_alloc_cq(pd->device, gsi, attr->cap.max_send_wr, 0,
IB_POLL_SOFTIRQ);
if (IS_ERR(gsi->cq)) {
mlx5_ib_warn(dev, "unable to create send CQ for GSI QP. error %ld\n",
@@ -181,11 +171,11 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
INIT_LIST_HEAD(&gsi->rx_qp->rdma_mrs);
INIT_LIST_HEAD(&gsi->rx_qp->sig_mrs);
- dev->devr.ports[init_attr->port_num - 1].gsi = gsi;
+ dev->devr.ports[attr->port_num - 1].gsi = gsi;
mutex_unlock(&dev->devr.mutex);
- return &mqp->ibqp;
+ return 0;
err_destroy_cq:
ib_free_cq(gsi->cq);
@@ -194,9 +184,7 @@ struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
kfree(gsi->outstanding_wrs);
err_free_tx:
kfree(gsi->tx_qps);
-err_free:
- kfree(mqp);
- return ERR_PTR(ret);
+ return ret;
}
int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp)
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index a70cc4a24b7c..3261720d40e3 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1335,8 +1335,8 @@ void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev, u8 port_num);
void mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev, u8 port_num);
/* GSI QP helper functions */
-struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr);
+int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp,
+ struct ib_qp_init_attr *attr);
int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp);
int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
int attr_mask);
@@ -1375,7 +1375,7 @@ static inline void init_query_mad(struct ib_smp *mad)
static inline int is_qp1(enum ib_qp_type qp_type)
{
- return qp_type == MLX5_IB_QPT_HW_GSI;
+ return qp_type == MLX5_IB_QPT_HW_GSI || qp_type == IB_QPT_GSI;
}
#define MLX5_MAX_UMR_SHIFT 16
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 92dda0e50f5d..7e9bf75c33e4 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2785,21 +2785,23 @@ static int create_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
goto out;
}
- if (qp->type == MLX5_IB_QPT_DCT) {
+ switch (qp->type) {
+ case MLX5_IB_QPT_DCT:
err = create_dct(dev, pd, qp, params);
- goto out;
- }
-
- if (qp->type == IB_QPT_XRC_TGT) {
+ break;
+ case IB_QPT_XRC_TGT:
err = create_xrc_tgt_qp(dev, qp, params);
- goto out;
+ break;
+ case IB_QPT_GSI:
+ err = mlx5_ib_create_gsi(pd, qp, params->attr);
+ break;
+ default:
+ if (params->udata)
+ err = create_user_qp(dev, pd, qp, params);
+ else
+ err = create_kernel_qp(dev, pd, qp, params);
}
- if (params->udata)
- err = create_user_qp(dev, pd, qp, params);
- else
- err = create_kernel_qp(dev, pd, qp, params);
-
out:
if (err) {
mlx5_ib_err(dev, "Create QP type %d failed\n", qp->type);
@@ -2939,9 +2941,6 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attr,
if (err)
return ERR_PTR(err);
- if (attr->qp_type == IB_QPT_GSI)
- return mlx5_ib_gsi_create_qp(pd, attr);
-
params.udata = udata;
params.uidx = MLX5_IB_DEFAULT_UIDX;
params.attr = attr;
@@ -3010,9 +3009,14 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attr,
return &qp->ibqp;
destroy_qp:
- if (qp->type == MLX5_IB_QPT_DCT) {
+ switch (qp->type) {
+ case MLX5_IB_QPT_DCT:
mlx5_ib_destroy_dct(qp);
- } else {
+ break;
+ case IB_QPT_GSI:
+ mlx5_ib_destroy_gsi(qp);
+ break;
+ default:
/*
* These lines below are temp solution till QP allocation
* will be moved to be under IB/core responsiblity.
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 04/10] RDMA/mlx5: Delete not needed GSI QP signal QP type
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (2 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 03/10] RDMA/mlx5: Change GSI QP to have same creation flow like other QPs Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 05/10] RDMA/mlx4: Embed GSI QP into general mlx4_ib QP Leon Romanovsky
` (6 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb
From: Leon Romanovsky <leonro@nvidia.com>
GSI QP doesn't need signal QP type because it is initialized statically
to zero, which is IB_SIGNAL_ALL_WR also wr->send_flags isn't set too.
This means that the GSI QP signal QP type can be removed.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/gsi.c | 8 +-------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 -
2 files changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/gsi.c b/drivers/infiniband/hw/mlx5/gsi.c
index f5aa1167cb9c..7fcad9135276 100644
--- a/drivers/infiniband/hw/mlx5/gsi.c
+++ b/drivers/infiniband/hw/mlx5/gsi.c
@@ -35,7 +35,6 @@
struct mlx5_ib_gsi_wr {
struct ib_cqe cqe;
struct ib_wc wc;
- int send_flags;
bool completed:1;
};
@@ -59,10 +58,7 @@ static void generate_completions(struct mlx5_ib_qp *mqp)
if (!wr->completed)
break;
- if (gsi->sq_sig_type == IB_SIGNAL_ALL_WR ||
- wr->send_flags & IB_SEND_SIGNALED)
- WARN_ON_ONCE(mlx5_ib_generate_wc(gsi_cq, &wr->wc));
-
+ WARN_ON_ONCE(mlx5_ib_generate_wc(gsi_cq, &wr->wc));
wr->completed = false;
}
@@ -132,7 +128,6 @@ int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp,
spin_lock_init(&gsi->lock);
gsi->cap = attr->cap;
- gsi->sq_sig_type = attr->sq_sig_type;
gsi->port_num = port_num;
gsi->cq = ib_alloc_cq(pd->device, gsi, attr->cap.max_send_wr, 0,
@@ -236,7 +231,6 @@ static struct ib_qp *create_gsi_ud_qp(struct mlx5_ib_gsi_qp *gsi)
.max_send_sge = gsi->cap.max_send_sge,
.max_inline_data = gsi->cap.max_inline_data,
},
- .sq_sig_type = gsi->sq_sig_type,
.qp_type = IB_QPT_UD,
.create_flags = MLX5_IB_QP_CREATE_SQPN_QP1,
};
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 3261720d40e3..6ab3efb75b21 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -388,7 +388,6 @@ struct mlx5_ib_gsi_qp {
struct ib_qp *rx_qp;
u8 port_num;
struct ib_qp_cap cap;
- enum ib_sig_type sq_sig_type;
struct ib_cq *cq;
struct mlx5_ib_gsi_wr *outstanding_wrs;
u32 outstanding_pi, outstanding_ci;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 05/10] RDMA/mlx4: Embed GSI QP into general mlx4_ib QP
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (3 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 04/10] RDMA/mlx5: Delete not needed GSI QP signal QP type Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 06/10] RDMA/mlx4: Prepare QP allocation to remove from the driver Leon Romanovsky
` (5 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe
Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb, Yishai Hadas
From: Leon Romanovsky <leonro@nvidia.com>
Refactor the storage struct of mlx4 GSI QP to be embedded
in mlx4_ib QP. This allows to remove internal memory allocation
of QP struct which is hidden inside the mlx4_ib_create_qp() flow.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx4/mlx4_ib.h | 25 +++-
drivers/infiniband/hw/mlx4/qp.c | 166 ++++++++++++---------------
2 files changed, 100 insertions(+), 91 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 70636f70dd8c..2f9b1a6d01eb 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -299,6 +299,26 @@ struct mlx4_ib_rss {
u8 rss_key[MLX4_EN_RSS_KEY_SIZE];
};
+enum {
+ /*
+ * Largest possible UD header: send with GRH and immediate
+ * data plus 18 bytes for an Ethernet header with VLAN/802.1Q
+ * tag. (LRH would only use 8 bytes, so Ethernet is the
+ * biggest case)
+ */
+ MLX4_IB_UD_HEADER_SIZE = 82,
+ MLX4_IB_LSO_HEADER_SPARE = 128,
+};
+
+struct mlx4_ib_sqp {
+ int pkey_index;
+ u32 qkey;
+ u32 send_psn;
+ struct ib_ud_header ud_header;
+ u8 header_buf[MLX4_IB_UD_HEADER_SIZE];
+ struct ib_qp *roce_v2_gsi;
+};
+
struct mlx4_ib_qp {
union {
struct ib_qp ibqp;
@@ -344,7 +364,10 @@ struct mlx4_ib_qp {
struct mlx4_wqn_range *wqn_range;
/* Number of RSS QP parents that uses this WQ */
u32 rss_usecnt;
- struct mlx4_ib_rss *rss_ctx;
+ union {
+ struct mlx4_ib_rss *rss_ctx;
+ struct mlx4_ib_sqp *sqp;
+ };
};
struct mlx4_ib_srq {
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index a52d1e9e97d9..0e3024c2419b 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -67,27 +67,6 @@ enum {
MLX4_IB_LINK_TYPE_ETH = 1
};
-enum {
- /*
- * Largest possible UD header: send with GRH and immediate
- * data plus 18 bytes for an Ethernet header with VLAN/802.1Q
- * tag. (LRH would only use 8 bytes, so Ethernet is the
- * biggest case)
- */
- MLX4_IB_UD_HEADER_SIZE = 82,
- MLX4_IB_LSO_HEADER_SPARE = 128,
-};
-
-struct mlx4_ib_sqp {
- struct mlx4_ib_qp qp;
- int pkey_index;
- u32 qkey;
- u32 send_psn;
- struct ib_ud_header ud_header;
- u8 header_buf[MLX4_IB_UD_HEADER_SIZE];
- struct ib_qp *roce_v2_gsi;
-};
-
enum {
MLX4_IB_MIN_SQ_STRIDE = 6,
MLX4_IB_CACHE_LINE_SIZE = 64,
@@ -123,11 +102,6 @@ enum mlx4_ib_source_type {
MLX4_IB_RWQ_SRC = 1,
};
-static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp)
-{
- return container_of(mqp, struct mlx4_ib_sqp, qp);
-}
-
static int is_tunnel_qp(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
{
if (!mlx4_is_master(dev->dev))
@@ -993,7 +967,6 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
struct mlx4_ib_dev *dev = to_mdev(pd->device);
int qpn;
int err;
- struct mlx4_ib_sqp *sqp = NULL;
struct mlx4_ib_qp *qp;
struct mlx4_ib_ucontext *context = rdma_udata_to_drv_context(
udata, struct mlx4_ib_ucontext, ibucontext);
@@ -1043,17 +1016,18 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
}
if (!*caller_qp) {
+ qp = kzalloc(sizeof(struct mlx4_ib_qp), GFP_KERNEL);
+ if (!qp)
+ return -ENOMEM;
+
if (qp_type == MLX4_IB_QPT_SMI || qp_type == MLX4_IB_QPT_GSI ||
(qp_type & (MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_SMI_OWNER |
MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER))) {
- sqp = kzalloc(sizeof(struct mlx4_ib_sqp), GFP_KERNEL);
- if (!sqp)
- return -ENOMEM;
- qp = &sqp->qp;
- } else {
- qp = kzalloc(sizeof(struct mlx4_ib_qp), GFP_KERNEL);
- if (!qp)
+ qp->sqp = kzalloc(sizeof(struct mlx4_ib_sqp), GFP_KERNEL);
+ if (!qp->sqp) {
+ kfree(qp);
return -ENOMEM;
+ }
}
qp->pri.vid = 0xFFFF;
qp->alt.vid = 0xFFFF;
@@ -1291,9 +1265,10 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
mlx4_db_free(dev->dev, &qp->db);
err:
- if (!sqp && !*caller_qp)
+ if (!*caller_qp) {
+ kfree(qp->sqp);
kfree(qp);
- kfree(sqp);
+ }
return err;
}
@@ -1657,7 +1632,8 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
if (!IS_ERR(ibqp) &&
(init_attr->qp_type == IB_QPT_GSI) &&
!(init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI)) {
- struct mlx4_ib_sqp *sqp = to_msqp((to_mqp(ibqp)));
+ struct mlx4_ib_qp *qp = to_mqp(ibqp);
+ struct mlx4_ib_sqp *sqp = qp->sqp;
int is_eth = rdma_cap_eth_ah(&dev->ib_dev, init_attr->port_num);
if (is_eth &&
@@ -1669,8 +1645,8 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
pr_err("Failed to create GSI QP for RoCEv2 (%ld)\n", PTR_ERR(sqp->roce_v2_gsi));
sqp->roce_v2_gsi = NULL;
} else {
- sqp = to_msqp(to_mqp(sqp->roce_v2_gsi));
- sqp->qp.flags |= MLX4_IB_ROCE_V2_GSI_QP;
+ to_mqp(sqp->roce_v2_gsi)->flags |=
+ MLX4_IB_ROCE_V2_GSI_QP;
}
init_attr->create_flags &= ~MLX4_IB_QP_CREATE_ROCE_V2_GSI;
@@ -1704,9 +1680,8 @@ static int _mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
}
if (is_sqp(dev, mqp))
- kfree(to_msqp(mqp));
- else
- kfree(mqp);
+ kfree(mqp->sqp);
+ kfree(mqp);
return 0;
}
@@ -1716,7 +1691,7 @@ int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
struct mlx4_ib_qp *mqp = to_mqp(qp);
if (mqp->mlx4_ib_qp_type == MLX4_IB_QPT_GSI) {
- struct mlx4_ib_sqp *sqp = to_msqp(mqp);
+ struct mlx4_ib_sqp *sqp = mqp->sqp;
if (sqp->roce_v2_gsi)
ib_destroy_qp(sqp->roce_v2_gsi);
@@ -2578,7 +2553,7 @@ static int __mlx4_ib_modify_qp(void *src, enum mlx4_ib_source_type src_type,
qp->alt_port = attr->alt_port_num;
if (is_sqp(dev, qp))
- store_sqp_attrs(to_msqp(qp), attr, attr_mask);
+ store_sqp_attrs(qp->sqp, attr, attr_mask);
/*
* If we moved QP0 to RTR, bring the IB link up; if we moved
@@ -2855,7 +2830,7 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
ret = _mlx4_ib_modify_qp(ibqp, attr, attr_mask, udata);
if (mqp->mlx4_ib_qp_type == MLX4_IB_QPT_GSI) {
- struct mlx4_ib_sqp *sqp = to_msqp(mqp);
+ struct mlx4_ib_sqp *sqp = mqp->sqp;
int err = 0;
if (sqp->roce_v2_gsi)
@@ -2880,12 +2855,13 @@ static int vf_get_qp0_qkey(struct mlx4_dev *dev, int qpn, u32 *qkey)
return -EINVAL;
}
-static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
+static int build_sriov_qp0_header(struct mlx4_ib_qp *qp,
const struct ib_ud_wr *wr,
void *wqe, unsigned *mlx_seg_len)
{
- struct mlx4_ib_dev *mdev = to_mdev(sqp->qp.ibqp.device);
- struct ib_device *ib_dev = &mdev->ib_dev;
+ struct mlx4_ib_dev *mdev = to_mdev(qp->ibqp.device);
+ struct mlx4_ib_sqp *sqp = qp->sqp;
+ struct ib_device *ib_dev = qp->ibqp.device;
struct mlx4_wqe_mlx_seg *mlx = wqe;
struct mlx4_wqe_inline_seg *inl = wqe + sizeof *mlx;
struct mlx4_ib_ah *ah = to_mah(wr->ah);
@@ -2907,12 +2883,12 @@ static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
/* for proxy-qp0 sends, need to add in size of tunnel header */
/* for tunnel-qp0 sends, tunnel header is already in s/g list */
- if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER)
+ if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER)
send_size += sizeof (struct mlx4_ib_tunnel_header);
ib_ud_header_init(send_size, 1, 0, 0, 0, 0, 0, 0, &sqp->ud_header);
- if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER) {
+ if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER) {
sqp->ud_header.lrh.service_level =
be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
sqp->ud_header.lrh.destination_lid =
@@ -2929,26 +2905,26 @@ static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
sqp->ud_header.lrh.virtual_lane = 0;
sqp->ud_header.bth.solicited_event = !!(wr->wr.send_flags & IB_SEND_SOLICITED);
- err = ib_get_cached_pkey(ib_dev, sqp->qp.port, 0, &pkey);
+ err = ib_get_cached_pkey(ib_dev, qp->port, 0, &pkey);
if (err)
return err;
sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
- if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_TUN_SMI_OWNER)
+ if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_TUN_SMI_OWNER)
sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->remote_qpn);
else
sqp->ud_header.bth.destination_qpn =
- cpu_to_be32(mdev->dev->caps.spec_qps[sqp->qp.port - 1].qp0_tunnel);
+ cpu_to_be32(mdev->dev->caps.spec_qps[qp->port - 1].qp0_tunnel);
sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
if (mlx4_is_master(mdev->dev)) {
- if (mlx4_get_parav_qkey(mdev->dev, sqp->qp.mqp.qpn, &qkey))
+ if (mlx4_get_parav_qkey(mdev->dev, qp->mqp.qpn, &qkey))
return -EINVAL;
} else {
- if (vf_get_qp0_qkey(mdev->dev, sqp->qp.mqp.qpn, &qkey))
+ if (vf_get_qp0_qkey(mdev->dev, qp->mqp.qpn, &qkey))
return -EINVAL;
}
sqp->ud_header.deth.qkey = cpu_to_be32(qkey);
- sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.mqp.qpn);
+ sqp->ud_header.deth.source_qpn = cpu_to_be32(qp->mqp.qpn);
sqp->ud_header.bth.opcode = IB_OPCODE_UD_SEND_ONLY;
sqp->ud_header.immediate_present = 0;
@@ -3032,10 +3008,11 @@ static int fill_gid_by_hw_index(struct mlx4_ib_dev *ibdev, u8 port_num,
}
#define MLX4_ROCEV2_QP1_SPORT 0xC000
-static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
+static int build_mlx_header(struct mlx4_ib_qp *qp, const struct ib_ud_wr *wr,
void *wqe, unsigned *mlx_seg_len)
{
- struct ib_device *ib_dev = sqp->qp.ibqp.device;
+ struct mlx4_ib_sqp *sqp = qp->sqp;
+ struct ib_device *ib_dev = qp->ibqp.device;
struct mlx4_ib_dev *ibdev = to_mdev(ib_dev);
struct mlx4_wqe_mlx_seg *mlx = wqe;
struct mlx4_wqe_ctrl_seg *ctrl = wqe;
@@ -3059,7 +3036,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
for (i = 0; i < wr->wr.num_sge; ++i)
send_size += wr->wr.sg_list[i].length;
- is_eth = rdma_port_get_link_layer(sqp->qp.ibqp.device, sqp->qp.port) == IB_LINK_LAYER_ETHERNET;
+ is_eth = rdma_port_get_link_layer(qp->ibqp.device, qp->port) == IB_LINK_LAYER_ETHERNET;
is_grh = mlx4_ib_ah_grh_present(ah);
if (is_eth) {
enum ib_gid_type gid_type;
@@ -3073,9 +3050,9 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
if (err)
return err;
} else {
- err = fill_gid_by_hw_index(ibdev, sqp->qp.port,
- ah->av.ib.gid_index,
- &sgid, &gid_type);
+ err = fill_gid_by_hw_index(ibdev, qp->port,
+ ah->av.ib.gid_index, &sgid,
+ &gid_type);
if (!err) {
is_udp = gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP;
if (is_udp) {
@@ -3120,13 +3097,18 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
* indexes don't necessarily match the hw ones, so
* we must use our own cache
*/
- sqp->ud_header.grh.source_gid.global.subnet_prefix =
- cpu_to_be64(atomic64_read(&(to_mdev(ib_dev)->sriov.
- demux[sqp->qp.port - 1].
- subnet_prefix)));
- sqp->ud_header.grh.source_gid.global.interface_id =
- to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
- guid_cache[ah->av.ib.gid_index];
+ sqp->ud_header.grh.source_gid.global
+ .subnet_prefix =
+ cpu_to_be64(atomic64_read(
+ &(to_mdev(ib_dev)
+ ->sriov
+ .demux[qp->port - 1]
+ .subnet_prefix)));
+ sqp->ud_header.grh.source_gid.global
+ .interface_id =
+ to_mdev(ib_dev)
+ ->sriov.demux[qp->port - 1]
+ .guid_cache[ah->av.ib.gid_index];
} else {
sqp->ud_header.grh.source_gid =
ah->ibah.sgid_attr->gid;
@@ -3158,10 +3140,13 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
mlx->flags &= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
if (!is_eth) {
- mlx->flags |= cpu_to_be32((!sqp->qp.ibqp.qp_num ? MLX4_WQE_MLX_VL15 : 0) |
- (sqp->ud_header.lrh.destination_lid ==
- IB_LID_PERMISSIVE ? MLX4_WQE_MLX_SLR : 0) |
- (sqp->ud_header.lrh.service_level << 8));
+ mlx->flags |=
+ cpu_to_be32((!qp->ibqp.qp_num ? MLX4_WQE_MLX_VL15 : 0) |
+ (sqp->ud_header.lrh.destination_lid ==
+ IB_LID_PERMISSIVE ?
+ MLX4_WQE_MLX_SLR :
+ 0) |
+ (sqp->ud_header.lrh.service_level << 8));
if (ah->av.ib.port_pd & cpu_to_be32(0x80000000))
mlx->flags |= cpu_to_be32(0x1); /* force loopback */
mlx->rlid = sqp->ud_header.lrh.destination_lid;
@@ -3207,21 +3192,23 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
sqp->ud_header.vlan.tag = cpu_to_be16(vlan | pcp);
}
} else {
- sqp->ud_header.lrh.virtual_lane = !sqp->qp.ibqp.qp_num ? 15 :
- sl_to_vl(to_mdev(ib_dev),
- sqp->ud_header.lrh.service_level,
- sqp->qp.port);
- if (sqp->qp.ibqp.qp_num && sqp->ud_header.lrh.virtual_lane == 15)
+ sqp->ud_header.lrh.virtual_lane =
+ !qp->ibqp.qp_num ?
+ 15 :
+ sl_to_vl(to_mdev(ib_dev),
+ sqp->ud_header.lrh.service_level,
+ qp->port);
+ if (qp->ibqp.qp_num && sqp->ud_header.lrh.virtual_lane == 15)
return -EINVAL;
if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
}
sqp->ud_header.bth.solicited_event = !!(wr->wr.send_flags & IB_SEND_SOLICITED);
- if (!sqp->qp.ibqp.qp_num)
- err = ib_get_cached_pkey(ib_dev, sqp->qp.port, sqp->pkey_index,
+ if (!qp->ibqp.qp_num)
+ err = ib_get_cached_pkey(ib_dev, qp->port, sqp->pkey_index,
&pkey);
else
- err = ib_get_cached_pkey(ib_dev, sqp->qp.port, wr->pkey_index,
+ err = ib_get_cached_pkey(ib_dev, qp->port, wr->pkey_index,
&pkey);
if (err)
return err;
@@ -3231,7 +3218,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, const struct ib_ud_wr *wr,
sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
sqp->ud_header.deth.qkey = cpu_to_be32(wr->remote_qkey & 0x80000000 ?
sqp->qkey : wr->remote_qkey);
- sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.ibqp.qp_num);
+ sqp->ud_header.deth.source_qpn = cpu_to_be32(qp->ibqp.qp_num);
header_size = ib_ud_header_pack(&sqp->ud_header, sqp->header_buf);
@@ -3554,14 +3541,14 @@ static int _mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_GSI) {
- struct mlx4_ib_sqp *sqp = to_msqp(qp);
+ struct mlx4_ib_sqp *sqp = qp->sqp;
if (sqp->roce_v2_gsi) {
struct mlx4_ib_ah *ah = to_mah(ud_wr(wr)->ah);
enum ib_gid_type gid_type;
union ib_gid gid;
- if (!fill_gid_by_hw_index(mdev, sqp->qp.port,
+ if (!fill_gid_by_hw_index(mdev, qp->port,
ah->av.ib.gid_index,
&gid, &gid_type))
qp = (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) ?
@@ -3681,8 +3668,8 @@ static int _mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
break;
case MLX4_IB_QPT_TUN_SMI_OWNER:
- err = build_sriov_qp0_header(to_msqp(qp), ud_wr(wr),
- ctrl, &seglen);
+ err = build_sriov_qp0_header(qp, ud_wr(wr), ctrl,
+ &seglen);
if (unlikely(err)) {
*bad_wr = wr;
goto out;
@@ -3718,8 +3705,8 @@ static int _mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
break;
case MLX4_IB_QPT_PROXY_SMI_OWNER:
- err = build_sriov_qp0_header(to_msqp(qp), ud_wr(wr),
- ctrl, &seglen);
+ err = build_sriov_qp0_header(qp, ud_wr(wr), ctrl,
+ &seglen);
if (unlikely(err)) {
*bad_wr = wr;
goto out;
@@ -3752,8 +3739,7 @@ static int _mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
case MLX4_IB_QPT_SMI:
case MLX4_IB_QPT_GSI:
- err = build_mlx_header(to_msqp(qp), ud_wr(wr), ctrl,
- &seglen);
+ err = build_mlx_header(qp, ud_wr(wr), ctrl, &seglen);
if (unlikely(err)) {
*bad_wr = wr;
goto out;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 06/10] RDMA/mlx4: Prepare QP allocation to remove from the driver
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (4 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 05/10] RDMA/mlx4: Embed GSI QP into general mlx4_ib QP Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-29 12:47 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 07/10] RDMA/core: Align write and ioctl checks of QP types Leon Romanovsky
` (4 subsequent siblings)
10 siblings, 1 reply; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe
Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb, Yishai Hadas
From: Leon Romanovsky <leonro@nvidia.com>
Since all mlx4 QP have same storage type, move the QP allocation to be
in one place. This change is preparation to removal of such allocation
from the driver.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx4/qp.c | 156 +++++++++++++-------------------
1 file changed, 63 insertions(+), 93 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 0e3024c2419b..4f003d4ca29c 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -630,8 +630,6 @@ static int create_qp_rss(struct mlx4_ib_dev *dev,
if (err)
goto err_qpn;
- mutex_init(&qp->mutex);
-
INIT_LIST_HEAD(&qp->gid_list);
INIT_LIST_HEAD(&qp->steering_rules);
@@ -670,80 +668,72 @@ static int create_qp_rss(struct mlx4_ib_dev *dev,
return err;
}
-static struct ib_qp *_mlx4_ib_create_qp_rss(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr,
- struct ib_udata *udata)
+static int _mlx4_ib_create_qp_rss(struct ib_pd *pd, struct mlx4_ib_qp *qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata)
{
- struct mlx4_ib_qp *qp;
struct mlx4_ib_create_qp_rss ucmd = {};
size_t required_cmd_sz;
int err;
if (!udata) {
pr_debug("RSS QP with NULL udata\n");
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
if (udata->outlen)
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
required_cmd_sz = offsetof(typeof(ucmd), reserved1) +
sizeof(ucmd.reserved1);
if (udata->inlen < required_cmd_sz) {
pr_debug("invalid inlen\n");
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen))) {
pr_debug("copy failed\n");
- return ERR_PTR(-EFAULT);
+ return -EFAULT;
}
if (memchr_inv(ucmd.reserved, 0, sizeof(ucmd.reserved)))
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
if (ucmd.comp_mask || ucmd.reserved1)
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
if (udata->inlen > sizeof(ucmd) &&
!ib_is_udata_cleared(udata, sizeof(ucmd),
udata->inlen - sizeof(ucmd))) {
pr_debug("inlen is not supported\n");
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
}
if (init_attr->qp_type != IB_QPT_RAW_PACKET) {
pr_debug("RSS QP with unsupported QP type %d\n",
init_attr->qp_type);
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
}
if (init_attr->create_flags) {
pr_debug("RSS QP doesn't support create flags\n");
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
}
if (init_attr->send_cq || init_attr->cap.max_send_wr) {
pr_debug("RSS QP with unsupported send attributes\n");
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
}
- qp = kzalloc(sizeof(*qp), GFP_KERNEL);
- if (!qp)
- return ERR_PTR(-ENOMEM);
-
qp->pri.vid = 0xFFFF;
qp->alt.vid = 0xFFFF;
err = create_qp_rss(to_mdev(pd->device), init_attr, &ucmd, qp);
- if (err) {
- kfree(qp);
- return ERR_PTR(err);
- }
+ if (err)
+ return err;
qp->ibqp.qp_num = qp->mqp.qpn;
-
- return &qp->ibqp;
+ return 0;
}
/*
@@ -847,7 +837,6 @@ static int create_rq(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
qp->mlx4_ib_qp_type = MLX4_IB_QPT_RAW_PACKET;
- mutex_init(&qp->mutex);
spin_lock_init(&qp->sq.lock);
spin_lock_init(&qp->rq.lock);
INIT_LIST_HEAD(&qp->gid_list);
@@ -962,12 +951,11 @@ static int create_rq(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
struct ib_udata *udata, int sqpn,
- struct mlx4_ib_qp **caller_qp)
+ struct mlx4_ib_qp *qp)
{
struct mlx4_ib_dev *dev = to_mdev(pd->device);
int qpn;
int err;
- struct mlx4_ib_qp *qp;
struct mlx4_ib_ucontext *context = rdma_udata_to_drv_context(
udata, struct mlx4_ib_ucontext, ibucontext);
enum mlx4_ib_qp_type qp_type = (enum mlx4_ib_qp_type) init_attr->qp_type;
@@ -1015,28 +1003,18 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
sqpn = qpn;
}
- if (!*caller_qp) {
- qp = kzalloc(sizeof(struct mlx4_ib_qp), GFP_KERNEL);
- if (!qp)
+ if (init_attr->qp_type == IB_QPT_SMI ||
+ init_attr->qp_type == IB_QPT_GSI || qp_type == MLX4_IB_QPT_SMI ||
+ qp_type == MLX4_IB_QPT_GSI ||
+ (qp_type & (MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_SMI_OWNER |
+ MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER))) {
+ qp->sqp = kzalloc(sizeof(struct mlx4_ib_sqp), GFP_KERNEL);
+ if (!qp->sqp)
return -ENOMEM;
-
- if (qp_type == MLX4_IB_QPT_SMI || qp_type == MLX4_IB_QPT_GSI ||
- (qp_type & (MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_SMI_OWNER |
- MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER))) {
- qp->sqp = kzalloc(sizeof(struct mlx4_ib_sqp), GFP_KERNEL);
- if (!qp->sqp) {
- kfree(qp);
- return -ENOMEM;
- }
- }
- qp->pri.vid = 0xFFFF;
- qp->alt.vid = 0xFFFF;
- } else
- qp = *caller_qp;
+ }
qp->mlx4_ib_qp_type = qp_type;
- mutex_init(&qp->mutex);
spin_lock_init(&qp->sq.lock);
spin_lock_init(&qp->rq.lock);
INIT_LIST_HEAD(&qp->gid_list);
@@ -1211,9 +1189,6 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
qp->mqp.event = mlx4_ib_qp_event;
- if (!*caller_qp)
- *caller_qp = qp;
-
spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
mlx4_ib_lock_cqs(to_mcq(init_attr->send_cq),
to_mcq(init_attr->recv_cq));
@@ -1265,11 +1240,7 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
mlx4_db_free(dev->dev, &qp->db);
err:
- if (!*caller_qp) {
- kfree(qp->sqp);
- kfree(qp);
- }
-
+ kfree(qp->sqp);
return err;
}
@@ -1502,17 +1473,16 @@ static u32 get_sqp_num(struct mlx4_ib_dev *dev, struct ib_qp_init_attr *attr)
return dev->dev->caps.spec_qps[attr->port_num - 1].qp1_proxy;
}
-static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr,
- struct ib_udata *udata)
+static int _mlx4_ib_create_qp(struct ib_pd *pd, struct mlx4_ib_qp *qp,
+ struct ib_qp_init_attr *init_attr,
+ struct ib_udata *udata)
{
- struct mlx4_ib_qp *qp = NULL;
int err;
int sup_u_create_flags = MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK;
u16 xrcdn = 0;
if (init_attr->rwq_ind_tbl)
- return _mlx4_ib_create_qp_rss(pd, init_attr, udata);
+ return _mlx4_ib_create_qp_rss(pd, qp, init_attr, udata);
/*
* We only support LSO, vendor flag1, and multicast loopback blocking,
@@ -1524,16 +1494,16 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
MLX4_IB_SRIOV_SQP |
MLX4_IB_QP_NETIF |
MLX4_IB_QP_CREATE_ROCE_V2_GSI))
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
if (init_attr->create_flags & IB_QP_CREATE_NETIF_QP) {
if (init_attr->qp_type != IB_QPT_UD)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
if (init_attr->create_flags) {
if (udata && init_attr->create_flags & ~(sup_u_create_flags))
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
if ((init_attr->create_flags & ~(MLX4_IB_SRIOV_SQP |
MLX4_IB_QP_CREATE_ROCE_V2_GSI |
@@ -1543,7 +1513,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
init_attr->qp_type > IB_QPT_GSI) ||
(init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI &&
init_attr->qp_type != IB_QPT_GSI))
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
switch (init_attr->qp_type) {
@@ -1554,31 +1524,22 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
fallthrough;
case IB_QPT_XRC_INI:
if (!(to_mdev(pd->device)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
- return ERR_PTR(-ENOSYS);
+ return -ENOSYS;
init_attr->recv_cq = init_attr->send_cq;
fallthrough;
case IB_QPT_RC:
case IB_QPT_UC:
case IB_QPT_RAW_PACKET:
- qp = kzalloc(sizeof(*qp), GFP_KERNEL);
- if (!qp)
- return ERR_PTR(-ENOMEM);
+ case IB_QPT_UD:
qp->pri.vid = 0xFFFF;
qp->alt.vid = 0xFFFF;
- fallthrough;
- case IB_QPT_UD:
- {
- err = create_qp_common(pd, init_attr, udata, 0, &qp);
- if (err) {
- kfree(qp);
- return ERR_PTR(err);
- }
+ err = create_qp_common(pd, init_attr, udata, 0, qp);
+ if (err)
+ return err;
qp->ibqp.qp_num = qp->mqp.qpn;
qp->xrcdn = xrcdn;
-
break;
- }
case IB_QPT_SMI:
case IB_QPT_GSI:
{
@@ -1586,21 +1547,23 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
/* Userspace is not allowed to create special QPs: */
if (udata)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
if (init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI) {
int res = mlx4_qp_reserve_range(to_mdev(pd->device)->dev,
1, 1, &sqpn, 0,
MLX4_RES_USAGE_DRIVER);
if (res)
- return ERR_PTR(res);
+ return res;
} else {
sqpn = get_sqp_num(to_mdev(pd->device), init_attr);
}
- err = create_qp_common(pd, init_attr, udata, sqpn, &qp);
+ qp->pri.vid = 0xFFFF;
+ qp->alt.vid = 0xFFFF;
+ err = create_qp_common(pd, init_attr, udata, sqpn, qp);
if (err)
- return ERR_PTR(err);
+ return err;
if (init_attr->create_flags &
(MLX4_IB_SRIOV_SQP | MLX4_IB_SRIOV_TUNNEL_QP))
@@ -1614,25 +1577,32 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
}
default:
/* Don't support raw QPs */
- return ERR_PTR(-EOPNOTSUPP);
+ return -EOPNOTSUPP;
}
-
- return &qp->ibqp;
+ return 0;
}
struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata) {
struct ib_device *device = pd ? pd->device : init_attr->xrcd->device;
- struct ib_qp *ibqp;
struct mlx4_ib_dev *dev = to_mdev(device);
+ struct mlx4_ib_qp *qp;
+ int ret;
- ibqp = _mlx4_ib_create_qp(pd, init_attr, udata);
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
+ if (!qp)
+ return ERR_PTR(-ENOMEM);
+
+ mutex_init(&qp->mutex);
+ ret = _mlx4_ib_create_qp(pd, qp, init_attr, udata);
+ if (ret) {
+ kfree(qp);
+ return ERR_PTR(ret);
+ }
- if (!IS_ERR(ibqp) &&
- (init_attr->qp_type == IB_QPT_GSI) &&
+ if (init_attr->qp_type == IB_QPT_GSI &&
!(init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI)) {
- struct mlx4_ib_qp *qp = to_mqp(ibqp);
struct mlx4_ib_sqp *sqp = qp->sqp;
int is_eth = rdma_cap_eth_ah(&dev->ib_dev, init_attr->port_num);
@@ -1652,7 +1622,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
init_attr->create_flags &= ~MLX4_IB_QP_CREATE_ROCE_V2_GSI;
}
}
- return ibqp;
+ return &qp->ibqp;
}
static int _mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
@@ -1679,8 +1649,7 @@ static int _mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
destroy_qp_common(dev, mqp, MLX4_IB_QP_SRC, udata);
}
- if (is_sqp(dev, mqp))
- kfree(mqp->sqp);
+ kfree(mqp->sqp);
kfree(mqp);
return 0;
@@ -4161,6 +4130,7 @@ struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
if (!qp)
return ERR_PTR(-ENOMEM);
+ mutex_init(&qp->mutex);
qp->pri.vid = 0xFFFF;
qp->alt.vid = 0xFFFF;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH rdma-next v1 06/10] RDMA/mlx4: Prepare QP allocation to remove from the driver
2020-09-26 10:24 ` [PATCH rdma-next v1 06/10] RDMA/mlx4: Prepare QP allocation to remove from the driver Leon Romanovsky
@ 2020-09-29 12:47 ` Leon Romanovsky
0 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-29 12:47 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: linux-rdma, Maor Gottlieb, Yishai Hadas
On Sat, Sep 26, 2020 at 01:24:46PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
>
> Since all mlx4 QP have same storage type, move the QP allocation to be
> in one place. This change is preparation to removal of such allocation
> from the driver.
>
> Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> ---
> drivers/infiniband/hw/mlx4/qp.c | 156 +++++++++++++-------------------
> 1 file changed, 63 insertions(+), 93 deletions(-)
Unfortunately, this patch needs small fixup.
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index ef52dd21acd9..c32af16e2564 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1354,7 +1354,6 @@ static void destroy_qp_rss(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
mlx4_qp_free(dev->dev, &qp->mqp);
mlx4_qp_release_range(dev->dev, qp->mqp.qpn, 1);
del_gid_entries(qp);
- kfree(qp->rss_ctx);
}
static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH rdma-next v1 07/10] RDMA/core: Align write and ioctl checks of QP types
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (5 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 06/10] RDMA/mlx4: Prepare QP allocation to remove from the driver Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 08/10] RDMA/drivers: Remove udata check from special QP Leon Romanovsky
` (3 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma, Maor Gottlieb
From: Leon Romanovsky <leonro@nvidia.com>
The ioctl flow checks that the user provides only a supported
list of QP types, while write flow didn't do it and relied on
the driver to check it. Align those flows to fail as early as
possible.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/core/uverbs_cmd.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 408a1a4b67f6..c8f5268bb690 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1275,8 +1275,21 @@ static int create_qp(struct uverbs_attr_bundle *attrs,
bool has_sq = true;
struct ib_device *ib_dev;
- if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW))
- return -EPERM;
+ switch (cmd->qp_type) {
+ case IB_QPT_RAW_PACKET:
+ if (!capable(CAP_NET_RAW))
+ return -EPERM;
+ break;
+ case IB_QPT_RC:
+ case IB_QPT_UC:
+ case IB_QPT_UD:
+ case IB_QPT_XRC_INI:
+ case IB_QPT_XRC_TGT:
+ case IB_QPT_DRIVER:
+ break;
+ default:
+ return -EINVAL;
+ }
obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
&ib_dev);
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 08/10] RDMA/drivers: Remove udata check from special QP
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (6 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 07/10] RDMA/core: Align write and ioctl checks of QP types Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 09/10] RDMA/mthca: Combine special QP struct with mthca QP Leon Romanovsky
` (2 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe
Cc: Leon Romanovsky, Adit Ranadive, Ariel Elior, Lijun Ou, linux-rdma,
Maor Gottlieb, Michal Kalderon, VMware PV-Drivers, Weihang Li,
Wei Hu(Xavier), Yishai Hadas
From: Leon Romanovsky <leonro@nvidia.com>
GSI QP can't be created from the user space, hence the udata check is
always false (udata == NULL). Remove that check and simplify the flow.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/hns/hns_roce_qp.c | 57 +++++++-------------
drivers/infiniband/hw/mlx4/qp.c | 3 --
drivers/infiniband/hw/mlx5/qp.c | 12 -----
drivers/infiniband/hw/mthca/mthca_provider.c | 4 --
drivers/infiniband/hw/qedr/verbs.c | 8 ---
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 3 +-
6 files changed, 19 insertions(+), 68 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 7c3b54881d46..6e06f42be5eb 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -1015,53 +1015,32 @@ struct ib_qp *hns_roce_create_qp(struct ib_pd *pd,
int ret;
switch (init_attr->qp_type) {
- case IB_QPT_RC: {
- hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
- if (!hr_qp)
- return ERR_PTR(-ENOMEM);
-
- ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
- hr_qp);
- if (ret) {
- ibdev_err(ibdev, "Create QP 0x%06lx failed(%d)\n",
- hr_qp->qpn, ret);
- kfree(hr_qp);
- return ERR_PTR(ret);
- }
-
+ case IB_QPT_RC:
+ case IB_QPT_GSI:
break;
+ default:
+ ibdev_err(ibdev, "not support QP type %d\n",
+ init_attr->qp_type);
+ return ERR_PTR(-EOPNOTSUPP);
}
- case IB_QPT_GSI: {
- /* Userspace is not allowed to create special QPs: */
- if (udata) {
- ibdev_err(ibdev, "not support usr space GSI\n");
- return ERR_PTR(-EINVAL);
- }
- hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
- if (!hr_qp)
- return ERR_PTR(-ENOMEM);
+ hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
+ if (!hr_qp)
+ return ERR_PTR(-ENOMEM);
+ if (init_attr->qp_type == IB_QPT_GSI) {
hr_qp->port = init_attr->port_num - 1;
hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port];
-
- ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
- hr_qp);
- if (ret) {
- ibdev_err(ibdev, "Create GSI QP failed!\n");
- kfree(hr_qp);
- return ERR_PTR(ret);
- }
-
- break;
- }
- default:{
- ibdev_err(ibdev, "not support QP type %d\n",
- init_attr->qp_type);
- return ERR_PTR(-EOPNOTSUPP);
- }
}
+ ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata, hr_qp);
+ if (ret) {
+ ibdev_err(ibdev, "Create QP type 0x%x failed(%d)\n",
+ init_attr->qp_type, ret);
+ ibdev_err(ibdev, "Create GSI QP failed!\n");
+ kfree(hr_qp);
+ return ERR_PTR(ret);
+ }
return &hr_qp->ibqp;
}
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 4f003d4ca29c..ef52dd21acd9 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1545,9 +1545,6 @@ static int _mlx4_ib_create_qp(struct ib_pd *pd, struct mlx4_ib_qp *qp,
{
int sqpn;
- /* Userspace is not allowed to create special QPs: */
- if (udata)
- return -EINVAL;
if (init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI) {
int res = mlx4_qp_reserve_range(to_mdev(pd->device)->dev,
1, 1, &sqpn, 0,
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 7e9bf75c33e4..22f678ba1a68 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2511,18 +2511,6 @@ static int check_valid_flow(struct mlx5_ib_dev *dev, struct ib_pd *pd,
return -EINVAL;
}
- switch (attr->qp_type) {
- case IB_QPT_SMI:
- case MLX5_IB_QPT_HW_GSI:
- case MLX5_IB_QPT_REG_UMR:
- case IB_QPT_GSI:
- mlx5_ib_dbg(dev, "Kernel doesn't support QP type %d\n",
- attr->qp_type);
- return -EINVAL;
- default:
- break;
- }
-
/*
* We don't need to see this warning, it means that kernel code
* missing ib_pd. Placed here to catch developer's mistakes.
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 82ee252fe5aa..5dbddf8faf99 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -535,10 +535,6 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
case IB_QPT_SMI:
case IB_QPT_GSI:
{
- /* Don't allow userspace to create special QPs */
- if (udata)
- return ERR_PTR(-EINVAL);
-
qp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
if (!qp)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index da42cc70e372..23559f1fe96e 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1235,14 +1235,6 @@ static int qedr_check_qp_attrs(struct ib_pd *ibpd, struct qedr_dev *dev,
return -EINVAL;
}
- /* Unprivileged user space cannot create special QP */
- if (udata && attrs->qp_type == IB_QPT_GSI) {
- DP_ERR(dev,
- "create qp: userspace can't create special QPs of type=0x%x\n",
- attrs->qp_type);
- return -EINVAL;
- }
-
/* verify consumer QPs are not trying to use GSI QP's CQ.
* TGT QP isn't associated with RQ/SQ
*/
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
index 8a385acf6f0c..428256c55065 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
@@ -232,8 +232,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
switch (init_attr->qp_type) {
case IB_QPT_GSI:
if (init_attr->port_num == 0 ||
- init_attr->port_num > pd->device->phys_port_cnt ||
- udata) {
+ init_attr->port_num > pd->device->phys_port_cnt) {
dev_warn(&dev->pdev->dev, "invalid queuepair attrs\n");
ret = -EINVAL;
goto err_qp;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 09/10] RDMA/mthca: Combine special QP struct with mthca QP
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (7 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 08/10] RDMA/drivers: Remove udata check from special QP Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-26 10:24 ` [PATCH rdma-next v1 10/10] RDMA/i40iw: Remove intermediate pointer that points to the same struct Leon Romanovsky
2020-09-29 16:45 ` [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Jason Gunthorpe
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Leon Romanovsky, linux-rdma
From: Leon Romanovsky <leonro@nvidia.com>
As preparation for the removal of QP allocation logic, we need to ensure
that ib_core allocates the right amount of memory before a call to the
driver create_qp(). It requires from driver to have the same structs for
all types of QPs.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mthca/mthca_dev.h | 2 +-
drivers/infiniband/hw/mthca/mthca_provider.c | 13 +++-
drivers/infiniband/hw/mthca/mthca_provider.h | 27 +++----
drivers/infiniband/hw/mthca/mthca_qp.c | 75 ++++++++++----------
4 files changed, 59 insertions(+), 58 deletions(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index 7550e9d03dec..9dbbf4d16796 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -548,7 +548,7 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
struct ib_qp_cap *cap,
int qpn,
int port,
- struct mthca_sqp *sqp,
+ struct mthca_qp *qp,
struct ib_udata *udata);
void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
int mthca_create_ah(struct mthca_dev *dev,
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 5dbddf8faf99..31b558ff8218 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -535,9 +535,14 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
case IB_QPT_SMI:
case IB_QPT_GSI:
{
- qp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
if (!qp)
return ERR_PTR(-ENOMEM);
+ qp->sqp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
+ if (!qp->sqp) {
+ kfree(qp);
+ return ERR_PTR(-ENOMEM);
+ }
qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
@@ -546,7 +551,7 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
to_mcq(init_attr->recv_cq),
init_attr->sq_sig_type, &init_attr->cap,
qp->ibqp.qp_num, init_attr->port_num,
- to_msqp(qp), udata);
+ qp, udata);
break;
}
default:
@@ -555,6 +560,7 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
}
if (err) {
+ kfree(qp->sqp);
kfree(qp);
return ERR_PTR(err);
}
@@ -587,7 +593,8 @@ static int mthca_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
to_mqp(qp)->rq.db_index);
}
mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
- kfree(qp);
+ kfree(to_mqp(qp)->sqp);
+ kfree(to_mqp(qp));
return 0;
}
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 84c64bff0d92..8a77483bb33c 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -240,6 +240,16 @@ struct mthca_wq {
__be32 *db;
};
+struct mthca_sqp {
+ int pkey_index;
+ u32 qkey;
+ u32 send_psn;
+ struct ib_ud_header ud_header;
+ int header_buf_size;
+ void *header_buf;
+ dma_addr_t header_dma;
+};
+
struct mthca_qp {
struct ib_qp ibqp;
int refcount;
@@ -265,17 +275,7 @@ struct mthca_qp {
wait_queue_head_t wait;
struct mutex mutex;
-};
-
-struct mthca_sqp {
- struct mthca_qp qp;
- int pkey_index;
- u32 qkey;
- u32 send_psn;
- struct ib_ud_header ud_header;
- int header_buf_size;
- void *header_buf;
- dma_addr_t header_dma;
+ struct mthca_sqp *sqp;
};
static inline struct mthca_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
@@ -313,9 +313,4 @@ static inline struct mthca_qp *to_mqp(struct ib_qp *ibqp)
return container_of(ibqp, struct mthca_qp, ibqp);
}
-static inline struct mthca_sqp *to_msqp(struct mthca_qp *qp)
-{
- return container_of(qp, struct mthca_sqp, qp);
-}
-
#endif /* MTHCA_PROVIDER_H */
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index c6e95d0d760a..08a2a7afafd3 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -809,7 +809,7 @@ static int __mthca_modify_qp(struct ib_qp *ibqp,
qp->alt_port = attr->alt_port_num;
if (is_sqp(dev, qp))
- store_attrs(to_msqp(qp), attr, attr_mask);
+ store_attrs(qp->sqp, attr, attr_mask);
/*
* If we moved QP0 to RTR, bring the IB link up; if we moved
@@ -1368,39 +1368,40 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
struct ib_qp_cap *cap,
int qpn,
int port,
- struct mthca_sqp *sqp,
+ struct mthca_qp *qp,
struct ib_udata *udata)
{
u32 mqpn = qpn * 2 + dev->qp_table.sqp_start + port - 1;
int err;
- sqp->qp.transport = MLX;
- err = mthca_set_qp_size(dev, cap, pd, &sqp->qp);
+ qp->transport = MLX;
+ err = mthca_set_qp_size(dev, cap, pd, qp);
if (err)
return err;
- sqp->header_buf_size = sqp->qp.sq.max * MTHCA_UD_HEADER_SIZE;
- sqp->header_buf = dma_alloc_coherent(&dev->pdev->dev, sqp->header_buf_size,
- &sqp->header_dma, GFP_KERNEL);
- if (!sqp->header_buf)
+ qp->sqp->header_buf_size = qp->sq.max * MTHCA_UD_HEADER_SIZE;
+ qp->sqp->header_buf =
+ dma_alloc_coherent(&dev->pdev->dev, qp->sqp->header_buf_size,
+ &qp->sqp->header_dma, GFP_KERNEL);
+ if (!qp->sqp->header_buf)
return -ENOMEM;
spin_lock_irq(&dev->qp_table.lock);
if (mthca_array_get(&dev->qp_table.qp, mqpn))
err = -EBUSY;
else
- mthca_array_set(&dev->qp_table.qp, mqpn, sqp);
+ mthca_array_set(&dev->qp_table.qp, mqpn, qp->sqp);
spin_unlock_irq(&dev->qp_table.lock);
if (err)
goto err_out;
- sqp->qp.port = port;
- sqp->qp.qpn = mqpn;
- sqp->qp.transport = MLX;
+ qp->port = port;
+ qp->qpn = mqpn;
+ qp->transport = MLX;
err = mthca_alloc_qp_common(dev, pd, send_cq, recv_cq,
- send_policy, &sqp->qp, udata);
+ send_policy, qp, udata);
if (err)
goto err_out_free;
@@ -1421,10 +1422,9 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
mthca_unlock_cqs(send_cq, recv_cq);
- err_out:
- dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size,
- sqp->header_buf, sqp->header_dma);
-
+err_out:
+ dma_free_coherent(&dev->pdev->dev, qp->sqp->header_buf_size,
+ qp->sqp->header_buf, qp->sqp->header_dma);
return err;
}
@@ -1487,20 +1487,19 @@ void mthca_free_qp(struct mthca_dev *dev,
if (is_sqp(dev, qp)) {
atomic_dec(&(to_mpd(qp->ibqp.pd)->sqp_count));
- dma_free_coherent(&dev->pdev->dev,
- to_msqp(qp)->header_buf_size,
- to_msqp(qp)->header_buf,
- to_msqp(qp)->header_dma);
+ dma_free_coherent(&dev->pdev->dev, qp->sqp->header_buf_size,
+ qp->sqp->header_buf, qp->sqp->header_dma);
} else
mthca_free(&dev->qp_table.alloc, qp->qpn);
}
/* Create UD header for an MLX send and build a data segment for it */
-static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
- int ind, const struct ib_ud_wr *wr,
+static int build_mlx_header(struct mthca_dev *dev, struct mthca_qp *qp, int ind,
+ const struct ib_ud_wr *wr,
struct mthca_mlx_seg *mlx,
struct mthca_data_seg *data)
{
+ struct mthca_sqp *sqp = qp->sqp;
int header_size;
int err;
u16 pkey;
@@ -1513,7 +1512,7 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
if (err)
return err;
mlx->flags &= ~cpu_to_be32(MTHCA_NEXT_SOLICIT | 1);
- mlx->flags |= cpu_to_be32((!sqp->qp.ibqp.qp_num ? MTHCA_MLX_VL15 : 0) |
+ mlx->flags |= cpu_to_be32((!qp->ibqp.qp_num ? MTHCA_MLX_VL15 : 0) |
(sqp->ud_header.lrh.destination_lid ==
IB_LID_PERMISSIVE ? MTHCA_MLX_SLR : 0) |
(sqp->ud_header.lrh.service_level << 8));
@@ -1534,29 +1533,29 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
return -EINVAL;
}
- sqp->ud_header.lrh.virtual_lane = !sqp->qp.ibqp.qp_num ? 15 : 0;
+ sqp->ud_header.lrh.virtual_lane = !qp->ibqp.qp_num ? 15 : 0;
if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
sqp->ud_header.bth.solicited_event = !!(wr->wr.send_flags & IB_SEND_SOLICITED);
- if (!sqp->qp.ibqp.qp_num)
- ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
- sqp->pkey_index, &pkey);
+ if (!qp->ibqp.qp_num)
+ ib_get_cached_pkey(&dev->ib_dev, qp->port, sqp->pkey_index,
+ &pkey);
else
- ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
- wr->pkey_index, &pkey);
+ ib_get_cached_pkey(&dev->ib_dev, qp->port, wr->pkey_index,
+ &pkey);
sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->remote_qpn);
sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
sqp->ud_header.deth.qkey = cpu_to_be32(wr->remote_qkey & 0x80000000 ?
sqp->qkey : wr->remote_qkey);
- sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.ibqp.qp_num);
+ sqp->ud_header.deth.source_qpn = cpu_to_be32(qp->ibqp.qp_num);
header_size = ib_ud_header_pack(&sqp->ud_header,
sqp->header_buf +
ind * MTHCA_UD_HEADER_SIZE);
data->byte_count = cpu_to_be32(header_size);
- data->lkey = cpu_to_be32(to_mpd(sqp->qp.ibqp.pd)->ntmr.ibmr.lkey);
+ data->lkey = cpu_to_be32(to_mpd(qp->ibqp.pd)->ntmr.ibmr.lkey);
data->addr = cpu_to_be64(sqp->header_dma +
ind * MTHCA_UD_HEADER_SIZE);
@@ -1735,9 +1734,9 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
break;
case MLX:
- err = build_mlx_header(dev, to_msqp(qp), ind, ud_wr(wr),
- wqe - sizeof (struct mthca_next_seg),
- wqe);
+ err = build_mlx_header(
+ dev, qp, ind, ud_wr(wr),
+ wqe - sizeof(struct mthca_next_seg), wqe);
if (err) {
*bad_wr = wr;
goto out;
@@ -2065,9 +2064,9 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
break;
case MLX:
- err = build_mlx_header(dev, to_msqp(qp), ind, ud_wr(wr),
- wqe - sizeof (struct mthca_next_seg),
- wqe);
+ err = build_mlx_header(
+ dev, qp, ind, ud_wr(wr),
+ wqe - sizeof(struct mthca_next_seg), wqe);
if (err) {
*bad_wr = wr;
goto out;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH rdma-next v1 10/10] RDMA/i40iw: Remove intermediate pointer that points to the same struct
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (8 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 09/10] RDMA/mthca: Combine special QP struct with mthca QP Leon Romanovsky
@ 2020-09-26 10:24 ` Leon Romanovsky
2020-09-29 16:45 ` [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Jason Gunthorpe
10 siblings, 0 replies; 13+ messages in thread
From: Leon Romanovsky @ 2020-09-26 10:24 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe
Cc: Leon Romanovsky, Faisal Latif, linux-rdma, Shiraz Saleem
From: Leon Romanovsky <leonro@nvidia.com>
There is no real need to have an intermediate pointer for the same
struct, remove it, and use struct directly.
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index ffb692d619b2..747b4de6faca 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -380,7 +380,7 @@ void i40iw_free_qp_resources(struct i40iw_qp *iwqp)
i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->kqp.dma_mem);
kfree(iwqp->kqp.wrid_mem);
iwqp->kqp.wrid_mem = NULL;
- kfree(iwqp->allocated_buffer);
+ kfree(iwqp);
}
/**
@@ -537,7 +537,6 @@ static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
struct i40iw_create_qp_req req;
struct i40iw_create_qp_resp uresp;
u32 qp_num = 0;
- void *mem;
enum i40iw_status_code ret;
int err_code;
int sq_size;
@@ -579,12 +578,10 @@ static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
- mem = kzalloc(sizeof(*iwqp), GFP_KERNEL);
- if (!mem)
+ iwqp = kzalloc(sizeof(*iwqp), GFP_KERNEL);
+ if (!iwqp)
return ERR_PTR(-ENOMEM);
- iwqp = (struct i40iw_qp *)mem;
- iwqp->allocated_buffer = mem;
qp = &iwqp->sc_qp;
qp->back_qp = (void *)iwqp;
qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
--
2.26.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core
2020-09-26 10:24 [PATCH rdma-next v1 00/10] Prepare drivers to move QP allocation to ib_core Leon Romanovsky
` (9 preceding siblings ...)
2020-09-26 10:24 ` [PATCH rdma-next v1 10/10] RDMA/i40iw: Remove intermediate pointer that points to the same struct Leon Romanovsky
@ 2020-09-29 16:45 ` Jason Gunthorpe
10 siblings, 0 replies; 13+ messages in thread
From: Jason Gunthorpe @ 2020-09-29 16:45 UTC (permalink / raw)
To: Leon Romanovsky
Cc: Doug Ledford, Leon Romanovsky, Adit Ranadive, Ariel Elior,
Faisal Latif, Lijun Ou, linux-kernel, linux-rdma, Maor Gottlieb,
Michal Kalderon, Shiraz Saleem, VMware PV-Drivers, Weihang Li,
Wei Hu(Xavier), Yishai Hadas
On Sat, Sep 26, 2020 at 01:24:40PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
>
> Changelog:
> v1:
> * Rebased
> * Fixed commit messages.
> * Changed "fallthrough" to be "break".
> v0: https://lore.kernel.org/lkml/20200910140046.1306341-1-leon@kernel.org
> -------------------------------------------------------------------------
>
> Hi,
>
> This series mainly changes mlx4, mlx5, and mthca drivers to future
> change of QP allocation scheme.
>
> The rdmavt driver will be sent separately.
>
> Thanks
>
> Leon Romanovsky (10):
> RDMA/mlx5: Embed GSI QP into general mlx5_ib QP
> RDMA/mlx5: Reuse existing fields in parent QP storage object
> RDMA/mlx5: Change GSI QP to have same creation flow like other QPs
> RDMA/mlx5: Delete not needed GSI QP signal QP type
> RDMA/mlx4: Embed GSI QP into general mlx4_ib QP
> RDMA/mlx4: Prepare QP allocation to remove from the driver
> RDMA/core: Align write and ioctl checks of QP types
> RDMA/drivers: Remove udata check from special QP
> RDMA/mthca: Combine special QP struct with mthca QP
> RDMA/i40iw: Remove intermediate pointer that points to the same struct
Applied to for-next, with the extra hunk
Thanks,
Jason
^ permalink raw reply [flat|nested] 13+ messages in thread