[PATCH rdma-next v2 3/3] RDMA: Fix link active_speed size

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From: Aharon Landau <aharonl@xxxxxxxxxxxx>

According to the IB spec active_speed size should be u16 and not u8 as
before. Changing it to allow further extensions in offered speeds.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Aharon Landau <aharonl@xxxxxxxxxxxx>
Reviewed-by: Michael Guralnik <michaelgur@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
 drivers/infiniband/core/uverbs_std_types_device.c | 3 ++-
 drivers/infiniband/core/verbs.c                   | 2 +-
 drivers/infiniband/hw/bnxt_re/bnxt_re.h           | 2 +-
 drivers/infiniband/hw/hfi1/verbs.c                | 2 +-
 drivers/infiniband/hw/mlx5/main.c                 | 8 ++------
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.c       | 2 +-
 drivers/infiniband/hw/qedr/verbs.c                | 2 +-
 drivers/infiniband/hw/qib/qib.h                   | 6 +++---
 drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h   | 2 +-
 include/rdma/ib_verbs.h                           | 4 ++--
 10 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_std_types_device.c b/drivers/infiniband/core/uverbs_std_types_device.c
index 75df2094a010..9f43c0161a8e 100644
--- a/drivers/infiniband/core/uverbs_std_types_device.c
+++ b/drivers/infiniband/core/uverbs_std_types_device.c
@@ -165,7 +165,8 @@ void copy_port_attr_to_resp(struct ib_port_attr *attr,
 	resp->subnet_timeout = attr->subnet_timeout;
 	resp->init_type_reply = attr->init_type_reply;
 	resp->active_width = attr->active_width;
-	resp->active_speed = attr->active_speed;
+	/* This ABI needs to be extended to provide any speed more than IB_SPEED_NDR */
+	resp->active_speed = min_t(u16, attr->active_speed, IB_SPEED_NDR);
 	resp->phys_state = attr->phys_state;
 	resp->link_layer = rdma_port_get_link_layer(ib_dev, port_num);
 }
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index b3b1805c2e84..c60bb308bf44 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1802,7 +1802,7 @@ int ib_modify_qp_with_udata(struct ib_qp *ib_qp, struct ib_qp_attr *attr,
 }
 EXPORT_SYMBOL(ib_modify_qp_with_udata);
 
-int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width)
+int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u16 *speed, u8 *width)
 {
 	int rc;
 	u32 netdev_speed;
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index a300588634c5..b930ea3dab7a 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -150,7 +150,7 @@ struct bnxt_re_dev {
 
 	struct delayed_work		worker;
 	u8				cur_prio_map;
-	u8				active_speed;
+	u16				active_speed;
 	u8				active_width;
 
 	/* FP Notification Queue (CQ & SRQ) */
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 30865635b449..3591923abebb 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1424,7 +1424,7 @@ static int query_port(struct rvt_dev_info *rdi, u8 port_num,
 	props->gid_tbl_len = HFI1_GUIDS_PER_PORT;
 	props->active_width = (u8)opa_width_to_ib(ppd->link_width_active);
 	/* see rate_show() in ib core/sysfs.c */
-	props->active_speed = (u8)opa_speed_to_ib(ppd->link_speed_active);
+	props->active_speed = opa_speed_to_ib(ppd->link_speed_active);
 	props->max_vl_num = ppd->vls_supported;
 
 	/* Once we are a "first class" citizen and have added the OPA MTUs to
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 545f23d27660..790b874fffe2 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -457,7 +457,6 @@ static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
 	bool put_mdev = true;
 	u16 qkey_viol_cntr;
 	u32 eth_prot_oper;
-	u16 active_speed;
 	u8 mdev_port_num;
 	bool ext;
 	int err;
@@ -491,12 +490,9 @@ static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
 	props->active_width     = IB_WIDTH_4X;
 	props->active_speed     = IB_SPEED_QDR;
 
-	translate_eth_proto_oper(eth_prot_oper, &active_speed,
+	translate_eth_proto_oper(eth_prot_oper, &props->active_speed,
 				 &props->active_width, ext);
 
-	WARN_ON_ONCE(active_speed & ~0xFF);
-	props->active_speed = (u8)active_speed;
-
 	props->port_cap_flags |= IB_PORT_CM_SUP;
 	props->ip_gids = true;
 
@@ -1307,7 +1303,7 @@ static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port,
 		props->port_cap_flags2 = rep->cap_mask2;
 
 	err = mlx5_query_ib_port_oper(mdev, &ib_link_width_oper,
-				      (u16 *)&props->active_speed, port);
+				      &props->active_speed, port);
 	if (err)
 		goto out;
 
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 6f9c763d5b79..7350fe16f164 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -112,7 +112,7 @@ int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr,
 }
 
 static inline void get_link_speed_and_width(struct ocrdma_dev *dev,
-					    u8 *ib_speed, u8 *ib_width)
+					    u16 *ib_speed, u8 *ib_width)
 {
 	int status;
 	u8 speed;
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 1b241fee4605..ba8626847cf6 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -165,7 +165,7 @@ int qedr_query_device(struct ib_device *ibdev,
 	return 0;
 }
 
-static inline void get_link_speed_and_width(int speed, u8 *ib_speed,
+static inline void get_link_speed_and_width(int speed, u16 *ib_speed,
 					    u8 *ib_width)
 {
 	switch (speed) {
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
index 432d6d0fd7f4..ee211423058a 100644
--- a/drivers/infiniband/hw/qib/qib.h
+++ b/drivers/infiniband/hw/qib/qib.h
@@ -619,11 +619,11 @@ struct qib_pportdata {
 	/* LID mask control */
 	u8 lmc;
 	u8 link_width_supported;
-	u8 link_speed_supported;
+	u16 link_speed_supported;
 	u8 link_width_enabled;
-	u8 link_speed_enabled;
+	u16 link_speed_enabled;
 	u8 link_width_active;
-	u8 link_speed_active;
+	u16 link_speed_active;
 	u8 vls_supported;
 	u8 vls_operational;
 	/* Rx Polarity inversion (compensate for ~tx on partner) */
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
index 97ed8f952f6e..f0e5ffba2d51 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
@@ -176,7 +176,7 @@ struct pvrdma_port_attr {
 	u8			subnet_timeout;
 	u8			init_type_reply;
 	u8			active_width;
-	u8			active_speed;
+	u16			active_speed;
 	u8			phys_state;
 	u8			reserved[2];
 };
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 0cd2dba331ee..3f8a743e99a7 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -670,7 +670,7 @@ struct ib_port_attr {
 	u8			subnet_timeout;
 	u8			init_type_reply;
 	u8			active_width;
-	u8			active_speed;
+	u16			active_speed;
 	u8                      phys_state;
 	u16			port_cap_flags2;
 };
@@ -4332,7 +4332,7 @@ void ib_drain_rq(struct ib_qp *qp);
 void ib_drain_sq(struct ib_qp *qp);
 void ib_drain_qp(struct ib_qp *qp);
 
-int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width);
+int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u16 *speed, u8 *width);
 
 static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr)
 {
-- 
2.26.2




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