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-rw-r--r--drivers/infiniband/core/uverbs.h1
-rw-r--r--drivers/infiniband/core/uverbs_cmd.c192
-rw-r--r--drivers/infiniband/core/uverbs_main.c1
-rw-r--r--include/uapi/rdma/ib_user_verbs.h21
4 files changed, 146 insertions, 69 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index df26a741cda6..455034ac994e 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -289,5 +289,6 @@ IB_UVERBS_DECLARE_EX_CMD(modify_wq);
IB_UVERBS_DECLARE_EX_CMD(destroy_wq);
IB_UVERBS_DECLARE_EX_CMD(create_rwq_ind_table);
IB_UVERBS_DECLARE_EX_CMD(destroy_rwq_ind_table);
+IB_UVERBS_DECLARE_EX_CMD(modify_qp);
#endif /* UVERBS_H */
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index cdb935ddab69..09b649159e6c 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2328,96 +2328,88 @@ static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
}
}
-ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
- struct ib_device *ib_dev,
- const char __user *buf, int in_len,
- int out_len)
+static int modify_qp(struct ib_uverbs_file *file,
+ struct ib_uverbs_ex_modify_qp *cmd, struct ib_udata *udata)
{
- struct ib_uverbs_modify_qp cmd;
- struct ib_udata udata;
- struct ib_qp *qp;
- struct ib_qp_attr *attr;
- int ret;
-
- if (copy_from_user(&cmd, buf, sizeof cmd))
- return -EFAULT;
-
- INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
- out_len);
+ struct ib_qp_attr *attr;
+ struct ib_qp *qp;
+ int ret;
attr = kmalloc(sizeof *attr, GFP_KERNEL);
if (!attr)
return -ENOMEM;
- qp = idr_read_qp(cmd.qp_handle, file->ucontext);
+ qp = idr_read_qp(cmd->base.qp_handle, file->ucontext);
if (!qp) {
ret = -EINVAL;
goto out;
}
- attr->qp_state = cmd.qp_state;
- attr->cur_qp_state = cmd.cur_qp_state;
- attr->path_mtu = cmd.path_mtu;
- attr->path_mig_state = cmd.path_mig_state;
- attr->qkey = cmd.qkey;
- attr->rq_psn = cmd.rq_psn;
- attr->sq_psn = cmd.sq_psn;
- attr->dest_qp_num = cmd.dest_qp_num;
- attr->qp_access_flags = cmd.qp_access_flags;
- attr->pkey_index = cmd.pkey_index;
- attr->alt_pkey_index = cmd.alt_pkey_index;
- attr->en_sqd_async_notify = cmd.en_sqd_async_notify;
- attr->max_rd_atomic = cmd.max_rd_atomic;
- attr->max_dest_rd_atomic = cmd.max_dest_rd_atomic;
- attr->min_rnr_timer = cmd.min_rnr_timer;
- attr->port_num = cmd.port_num;
- attr->timeout = cmd.timeout;
- attr->retry_cnt = cmd.retry_cnt;
- attr->rnr_retry = cmd.rnr_retry;
- attr->alt_port_num = cmd.alt_port_num;
- attr->alt_timeout = cmd.alt_timeout;
-
- memcpy(attr->ah_attr.grh.dgid.raw, cmd.dest.dgid, 16);
- attr->ah_attr.grh.flow_label = cmd.dest.flow_label;
- attr->ah_attr.grh.sgid_index = cmd.dest.sgid_index;
- attr->ah_attr.grh.hop_limit = cmd.dest.hop_limit;
- attr->ah_attr.grh.traffic_class = cmd.dest.traffic_class;
- attr->ah_attr.dlid = cmd.dest.dlid;
- attr->ah_attr.sl = cmd.dest.sl;
- attr->ah_attr.src_path_bits = cmd.dest.src_path_bits;
- attr->ah_attr.static_rate = cmd.dest.static_rate;
- attr->ah_attr.ah_flags = cmd.dest.is_global ? IB_AH_GRH : 0;
- attr->ah_attr.port_num = cmd.dest.port_num;
-
- memcpy(attr->alt_ah_attr.grh.dgid.raw, cmd.alt_dest.dgid, 16);
- attr->alt_ah_attr.grh.flow_label = cmd.alt_dest.flow_label;
- attr->alt_ah_attr.grh.sgid_index = cmd.alt_dest.sgid_index;
- attr->alt_ah_attr.grh.hop_limit = cmd.alt_dest.hop_limit;
- attr->alt_ah_attr.grh.traffic_class = cmd.alt_dest.traffic_class;
- attr->alt_ah_attr.dlid = cmd.alt_dest.dlid;
- attr->alt_ah_attr.sl = cmd.alt_dest.sl;
- attr->alt_ah_attr.src_path_bits = cmd.alt_dest.src_path_bits;
- attr->alt_ah_attr.static_rate = cmd.alt_dest.static_rate;
- attr->alt_ah_attr.ah_flags = cmd.alt_dest.is_global ? IB_AH_GRH : 0;
- attr->alt_ah_attr.port_num = cmd.alt_dest.port_num;
+ attr->qp_state = cmd->base.qp_state;
+ attr->cur_qp_state = cmd->base.cur_qp_state;
+ attr->path_mtu = cmd->base.path_mtu;
+ attr->path_mig_state = cmd->base.path_mig_state;
+ attr->qkey = cmd->base.qkey;
+ attr->rq_psn = cmd->base.rq_psn;
+ attr->sq_psn = cmd->base.sq_psn;
+ attr->dest_qp_num = cmd->base.dest_qp_num;
+ attr->qp_access_flags = cmd->base.qp_access_flags;
+ attr->pkey_index = cmd->base.pkey_index;
+ attr->alt_pkey_index = cmd->base.alt_pkey_index;
+ attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify;
+ attr->max_rd_atomic = cmd->base.max_rd_atomic;
+ attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic;
+ attr->min_rnr_timer = cmd->base.min_rnr_timer;
+ attr->port_num = cmd->base.port_num;
+ attr->timeout = cmd->base.timeout;
+ attr->retry_cnt = cmd->base.retry_cnt;
+ attr->rnr_retry = cmd->base.rnr_retry;
+ attr->alt_port_num = cmd->base.alt_port_num;
+ attr->alt_timeout = cmd->base.alt_timeout;
+ attr->rate_limit = cmd->rate_limit;
+
+ memcpy(attr->ah_attr.grh.dgid.raw, cmd->base.dest.dgid, 16);
+ attr->ah_attr.grh.flow_label = cmd->base.dest.flow_label;
+ attr->ah_attr.grh.sgid_index = cmd->base.dest.sgid_index;
+ attr->ah_attr.grh.hop_limit = cmd->base.dest.hop_limit;
+ attr->ah_attr.grh.traffic_class = cmd->base.dest.traffic_class;
+ attr->ah_attr.dlid = cmd->base.dest.dlid;
+ attr->ah_attr.sl = cmd->base.dest.sl;
+ attr->ah_attr.src_path_bits = cmd->base.dest.src_path_bits;
+ attr->ah_attr.static_rate = cmd->base.dest.static_rate;
+ attr->ah_attr.ah_flags = cmd->base.dest.is_global ?
+ IB_AH_GRH : 0;
+ attr->ah_attr.port_num = cmd->base.dest.port_num;
+
+ memcpy(attr->alt_ah_attr.grh.dgid.raw, cmd->base.alt_dest.dgid, 16);
+ attr->alt_ah_attr.grh.flow_label = cmd->base.alt_dest.flow_label;
+ attr->alt_ah_attr.grh.sgid_index = cmd->base.alt_dest.sgid_index;
+ attr->alt_ah_attr.grh.hop_limit = cmd->base.alt_dest.hop_limit;
+ attr->alt_ah_attr.grh.traffic_class = cmd->base.alt_dest.traffic_class;
+ attr->alt_ah_attr.dlid = cmd->base.alt_dest.dlid;
+ attr->alt_ah_attr.sl = cmd->base.alt_dest.sl;
+ attr->alt_ah_attr.src_path_bits = cmd->base.alt_dest.src_path_bits;
+ attr->alt_ah_attr.static_rate = cmd->base.alt_dest.static_rate;
+ attr->alt_ah_attr.ah_flags = cmd->base.alt_dest.is_global ?
+ IB_AH_GRH : 0;
+ attr->alt_ah_attr.port_num = cmd->base.alt_dest.port_num;
if (qp->real_qp == qp) {
- if (cmd.attr_mask & IB_QP_AV) {
+ if (cmd->base.attr_mask & IB_QP_AV) {
ret = ib_resolve_eth_dmac(qp->device, &attr->ah_attr);
if (ret)
goto release_qp;
}
ret = qp->device->modify_qp(qp, attr,
- modify_qp_mask(qp->qp_type, cmd.attr_mask), &udata);
+ modify_qp_mask(qp->qp_type,
+ cmd->base.attr_mask),
+ udata);
} else {
- ret = ib_modify_qp(qp, attr, modify_qp_mask(qp->qp_type, cmd.attr_mask));
+ ret = ib_modify_qp(qp, attr,
+ modify_qp_mask(qp->qp_type,
+ cmd->base.attr_mask));
}
- if (ret)
- goto release_qp;
-
- ret = in_len;
-
release_qp:
put_qp_read(qp);
@@ -2427,6 +2419,68 @@ out:
return ret;
}
+ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ const char __user *buf, int in_len,
+ int out_len)
+{
+ struct ib_uverbs_ex_modify_qp cmd = {};
+ struct ib_udata udata;
+ int ret;
+
+ if (copy_from_user(&cmd.base, buf, sizeof(cmd.base)))
+ return -EFAULT;
+
+ if (cmd.base.attr_mask &
+ ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK << 1) - 1))
+ return -EOPNOTSUPP;
+
+ INIT_UDATA(&udata, buf + sizeof(cmd.base), NULL,
+ in_len - sizeof(cmd.base), out_len);
+
+ ret = modify_qp(file, &cmd, &udata);
+ if (ret)
+ return ret;
+
+ return in_len;
+}
+
+int ib_uverbs_ex_modify_qp(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_modify_qp cmd = {};
+ int ret;
+
+ /*
+ * Last bit is reserved for extending the attr_mask by
+ * using another field.
+ */
+ BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK == (1 << 31));
+
+ if (ucore->inlen < sizeof(cmd.base))
+ return -EINVAL;
+
+ ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen));
+ if (ret)
+ return ret;
+
+ if (cmd.base.attr_mask &
+ ~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1))
+ return -EOPNOTSUPP;
+
+ if (ucore->inlen > sizeof(cmd)) {
+ if (ib_is_udata_cleared(ucore, sizeof(cmd),
+ ucore->inlen - sizeof(cmd)))
+ return -EOPNOTSUPP;
+ }
+
+ ret = modify_qp(file, &cmd, uhw);
+
+ return ret;
+}
+
ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
struct ib_device *ib_dev,
const char __user *buf, int in_len,
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 0012fa58c105..80839c31c887 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -137,6 +137,7 @@ static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
[IB_USER_VERBS_EX_CMD_DESTROY_WQ] = ib_uverbs_ex_destroy_wq,
[IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL] = ib_uverbs_ex_create_rwq_ind_table,
[IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL] = ib_uverbs_ex_destroy_rwq_ind_table,
+ [IB_USER_VERBS_EX_CMD_MODIFY_QP] = ib_uverbs_ex_modify_qp,
};
static void ib_uverbs_add_one(struct ib_device *device);
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 90ba5e88ec00..dfdfe4e92d31 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -37,6 +37,7 @@
#define IB_USER_VERBS_H
#include <linux/types.h>
+#include <rdma/ib_verbs.h>
/*
* Increment this value if any changes that break userspace ABI
@@ -93,6 +94,7 @@ enum {
IB_USER_VERBS_EX_CMD_QUERY_DEVICE = IB_USER_VERBS_CMD_QUERY_DEVICE,
IB_USER_VERBS_EX_CMD_CREATE_CQ = IB_USER_VERBS_CMD_CREATE_CQ,
IB_USER_VERBS_EX_CMD_CREATE_QP = IB_USER_VERBS_CMD_CREATE_QP,
+ IB_USER_VERBS_EX_CMD_MODIFY_QP = IB_USER_VERBS_CMD_MODIFY_QP,
IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
IB_USER_VERBS_EX_CMD_CREATE_WQ,
@@ -545,6 +547,14 @@ enum {
IB_UVERBS_CREATE_QP_SUP_COMP_MASK = IB_UVERBS_CREATE_QP_MASK_IND_TABLE,
};
+enum {
+ IB_USER_LEGACY_LAST_QP_ATTR_MASK = IB_QP_DEST_QPN
+};
+
+enum {
+ IB_USER_LAST_QP_ATTR_MASK = IB_QP_RATE_LIMIT
+};
+
struct ib_uverbs_ex_create_qp {
__u64 user_handle;
__u32 pd_handle;
@@ -684,9 +694,20 @@ struct ib_uverbs_modify_qp {
__u64 driver_data[0];
};
+struct ib_uverbs_ex_modify_qp {
+ struct ib_uverbs_modify_qp base;
+ __u32 rate_limit;
+ __u32 reserved;
+};
+
struct ib_uverbs_modify_qp_resp {
};
+struct ib_uverbs_ex_modify_qp_resp {
+ __u32 comp_mask;
+ __u32 response_length;
+};
+
struct ib_uverbs_destroy_qp {
__u64 response;
__u32 qp_handle;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 08:52:29 +0000