net/mlx5: Set uid as part of SRQ commands

Set uid as part of SRQ commands so that the firmware can manage the
SRQ object in a secured way.

That will enable using an SRQ that was created by verbs application
to be used by the DEVX flow in case the uid is equal.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

4 files changed, 40 insertions, 14 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/srq.c b/drivers/net/ethernet/mellanox/mlx5/core/srq.c
index 23cc337a96c9..5c519615fb1c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/srq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/srq.c
@@ -166,6 +166,7 @@ static int create_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
         if (!create_in)
                 return -ENOMEM;
 
+        MLX5_SET(create_srq_in, create_in, uid, in->uid);
         srqc = MLX5_ADDR_OF(create_srq_in, create_in, srq_context_entry);
         pas = MLX5_ADDR_OF(create_srq_in, create_in, pas);
 
@@ -178,8 +179,10 @@ static int create_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
         err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
                             sizeof(create_out));
         kvfree(create_in);
-        if (!err)
+        if (!err) {
                 srq->srqn = MLX5_GET(create_srq_out, create_out, srqn);
+                srq->uid = in->uid;
+        }
 
         return err;
 }
@@ -193,6 +196,7 @@ static int destroy_srq_cmd(struct mlx5_core_dev *dev,
         MLX5_SET(destroy_srq_in, srq_in, opcode,
                  MLX5_CMD_OP_DESTROY_SRQ);
         MLX5_SET(destroy_srq_in, srq_in, srqn, srq->srqn);
+        MLX5_SET(destroy_srq_in, srq_in, uid, srq->uid);
 
         return mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
                              srq_out, sizeof(srq_out));
@@ -208,6 +212,7 @@ static int arm_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
         MLX5_SET(arm_rq_in, srq_in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_SRQ);
         MLX5_SET(arm_rq_in, srq_in, srq_number, srq->srqn);
         MLX5_SET(arm_rq_in, srq_in, lwm,      lwm);
+        MLX5_SET(arm_rq_in, srq_in, uid, srq->uid);
 
         return  mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
                               srq_out, sizeof(srq_out));
@@ -260,6 +265,7 @@ static int create_xrc_srq_cmd(struct mlx5_core_dev *dev,
         if (!create_in)
                 return -ENOMEM;
 
+        MLX5_SET(create_xrc_srq_in, create_in, uid, in->uid);
         xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, create_in,
                                 xrc_srq_context_entry);
         pas      = MLX5_ADDR_OF(create_xrc_srq_in, create_in, pas);
@@ -277,6 +283,7 @@ static int create_xrc_srq_cmd(struct mlx5_core_dev *dev,
                 goto out;
 
         srq->srqn = MLX5_GET(create_xrc_srq_out, create_out, xrc_srqn);
+        srq->uid = in->uid;
 out:
         kvfree(create_in);
         return err;
@@ -291,6 +298,7 @@ static int destroy_xrc_srq_cmd(struct mlx5_core_dev *dev,
         MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, opcode,
                  MLX5_CMD_OP_DESTROY_XRC_SRQ);
         MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
+        MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, uid, srq->uid);
 
         return mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
                              xrcsrq_out, sizeof(xrcsrq_out));
@@ -306,6 +314,7 @@ static int arm_xrc_srq_cmd(struct mlx5_core_dev *dev,
         MLX5_SET(arm_xrc_srq_in, xrcsrq_in, op_mod,   MLX5_ARM_XRC_SRQ_IN_OP_MOD_XRC_SRQ);
         MLX5_SET(arm_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
         MLX5_SET(arm_xrc_srq_in, xrcsrq_in, lwm,      lwm);
+        MLX5_SET(arm_xrc_srq_in, xrcsrq_in, uid, srq->uid);
 
         return  mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
                               xrcsrq_out, sizeof(xrcsrq_out));
@@ -365,10 +374,13 @@ static int create_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
         wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
 
         MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
+        MLX5_SET(create_rmp_in, create_in, uid, in->uid);
         set_wq(wq, in);
         memcpy(MLX5_ADDR_OF(rmpc, rmpc, wq.pas), in->pas, pas_size);
 
         err = mlx5_core_create_rmp(dev, create_in, inlen, &srq->srqn);
+        if (!err)
+                srq->uid = in->uid;
 
         kvfree(create_in);
         return err;
@@ -377,7 +389,13 @@ static int create_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 static int destroy_rmp_cmd(struct mlx5_core_dev *dev,
                            struct mlx5_core_srq *srq)
 {
-        return mlx5_core_destroy_rmp(dev, srq->srqn);
+        u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)]   = {};
+        u32 out[MLX5_ST_SZ_DW(destroy_rmp_out)] = {};
+
+        MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
+        MLX5_SET(destroy_rmp_in, in, rmpn, srq->srqn);
+        MLX5_SET(destroy_rmp_in, in, uid, srq->uid);
+        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
 
 static int arm_rmp_cmd(struct mlx5_core_dev *dev,
@@ -400,6 +418,7 @@ static int arm_rmp_cmd(struct mlx5_core_dev *dev,
 
         MLX5_SET(modify_rmp_in, in,      rmp_state, MLX5_RMPC_STATE_RDY);
         MLX5_SET(modify_rmp_in, in,      rmpn,      srq->srqn);
+        MLX5_SET(modify_rmp_in, in, uid, srq->uid);
         MLX5_SET(wq,            wq,      lwm,       lwm);
         MLX5_SET(rmp_bitmask,   bitmask, lwm,       1);
         MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
@@ -469,11 +488,14 @@ static int create_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
         MLX5_SET(xrqc, xrqc, user_index, in->user_index);
         MLX5_SET(xrqc, xrqc, cqn, in->cqn);
         MLX5_SET(create_xrq_in, create_in, opcode, MLX5_CMD_OP_CREATE_XRQ);
+        MLX5_SET(create_xrq_in, create_in, uid, in->uid);
         err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
                             sizeof(create_out));
         kvfree(create_in);
-        if (!err)
+        if (!err) {
                 srq->srqn = MLX5_GET(create_xrq_out, create_out, xrqn);
+                srq->uid = in->uid;
+        }
 
         return err;
 }
@@ -485,6 +507,7 @@ static int destroy_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq)
 
         MLX5_SET(destroy_xrq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRQ);
         MLX5_SET(destroy_xrq_in, in, xrqn,   srq->srqn);
+        MLX5_SET(destroy_xrq_in, in, uid, srq->uid);
 
         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
@@ -500,6 +523,7 @@ static int arm_xrq_cmd(struct mlx5_core_dev *dev,
         MLX5_SET(arm_rq_in, in, op_mod,     MLX5_ARM_RQ_IN_OP_MOD_XRQ);
         MLX5_SET(arm_rq_in, in, srq_number, srq->srqn);
         MLX5_SET(arm_rq_in, in, lwm,        lwm);
+        MLX5_SET(arm_rq_in, in, uid, srq->uid);
 
         return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index d885e9f0e054..8fb072aa8671 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -474,6 +474,7 @@ struct mlx5_core_srq {
 
         atomic_t                refcount;
         struct completion       free;
+        u16             uid;
 };
 
 struct mlx5_eq_table {
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 72dd1e49a799..85f1237d80db 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -5524,7 +5524,7 @@ struct mlx5_ifc_rmp_bitmask_bits {
 
 struct mlx5_ifc_modify_rmp_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -5986,7 +5986,7 @@ struct mlx5_ifc_destroy_xrq_out_bits {
 
 struct mlx5_ifc_destroy_xrq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6008,7 +6008,7 @@ struct mlx5_ifc_destroy_xrc_srq_out_bits {
 
 struct mlx5_ifc_destroy_xrc_srq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6074,7 +6074,7 @@ struct mlx5_ifc_destroy_srq_out_bits {
 
 struct mlx5_ifc_destroy_srq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6208,7 +6208,7 @@ struct mlx5_ifc_destroy_rmp_out_bits {
 
 struct mlx5_ifc_destroy_rmp_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6641,7 +6641,7 @@ struct mlx5_ifc_create_xrq_out_bits {
 
 struct mlx5_ifc_create_xrq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6665,7 +6665,7 @@ struct mlx5_ifc_create_xrc_srq_out_bits {
 
 struct mlx5_ifc_create_xrc_srq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6741,7 +6741,7 @@ struct mlx5_ifc_create_srq_out_bits {
 
 struct mlx5_ifc_create_srq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -6871,7 +6871,7 @@ struct mlx5_ifc_create_rmp_out_bits {
 
 struct mlx5_ifc_create_rmp_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -7272,7 +7272,7 @@ enum {
 
 struct mlx5_ifc_arm_xrc_srq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
@@ -7300,7 +7300,7 @@ enum {
 
 struct mlx5_ifc_arm_rq_in_bits {
         u8         opcode[0x10];
-        u8         reserved_at_10[0x10];
+        u8         uid[0x10];
 
         u8         reserved_at_20[0x10];
         u8         op_mod[0x10];
diff --git a/include/linux/mlx5/srq.h b/include/linux/mlx5/srq.h
index 24ff23e27c8a..1b1f3c20c6a3 100644
--- a/include/linux/mlx5/srq.h
+++ b/include/linux/mlx5/srq.h
@@ -61,6 +61,7 @@ struct mlx5_srq_attr {
         u32 tm_next_tag;
         u32 tm_hw_phase_cnt;
         u32 tm_sw_phase_cnt;
+        u16 uid;
 };
 
 struct mlx5_core_dev;