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path: root/fs/smb/server/transport_rdma.c
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Diffstat (limited to 'fs/smb/server/transport_rdma.c')
-rw-r--r--fs/smb/server/transport_rdma.c78
1 files changed, 33 insertions, 45 deletions
diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 8faa25c6e129..c6cbe0d56e32 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -14,6 +14,7 @@
#include <linux/mempool.h>
#include <linux/highmem.h>
#include <linux/scatterlist.h>
+#include <linux/string_choices.h>
#include <rdma/ib_verbs.h>
#include <rdma/rdma_cm.h>
#include <rdma/rw.h>
@@ -21,7 +22,7 @@
#include "glob.h"
#include "connection.h"
#include "smb_common.h"
-#include "smbstatus.h"
+#include "../common/smb2status.h"
#include "transport_rdma.h"
#define SMB_DIRECT_PORT_IWARP 5445
@@ -158,13 +159,14 @@ struct smb_direct_transport {
};
#define KSMBD_TRANS(t) ((struct ksmbd_transport *)&((t)->transport))
-
+#define SMBD_TRANS(t) ((struct smb_direct_transport *)container_of(t, \
+ struct smb_direct_transport, transport))
enum {
SMB_DIRECT_MSG_NEGOTIATE_REQ = 0,
SMB_DIRECT_MSG_DATA_TRANSFER
};
-static struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops;
+static const struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops;
struct smb_direct_send_ctx {
struct list_head msg_list;
@@ -362,7 +364,7 @@ static struct smb_direct_transport *alloc_transport(struct rdma_cm_id *cm_id)
struct smb_direct_transport *t;
struct ksmbd_conn *conn;
- t = kzalloc(sizeof(*t), GFP_KERNEL);
+ t = kzalloc(sizeof(*t), KSMBD_DEFAULT_GFP);
if (!t)
return NULL;
@@ -409,6 +411,11 @@ err:
return NULL;
}
+static void smb_direct_free_transport(struct ksmbd_transport *kt)
+{
+ kfree(SMBD_TRANS(kt));
+}
+
static void free_transport(struct smb_direct_transport *t)
{
struct smb_direct_recvmsg *recvmsg;
@@ -426,7 +433,8 @@ static void free_transport(struct smb_direct_transport *t)
if (t->qp) {
ib_drain_qp(t->qp);
ib_mr_pool_destroy(t->qp, &t->qp->rdma_mrs);
- ib_destroy_qp(t->qp);
+ t->qp = NULL;
+ rdma_destroy_qp(t->cm_id);
}
ksmbd_debug(RDMA, "drain the reassembly queue\n");
@@ -454,7 +462,6 @@ static void free_transport(struct smb_direct_transport *t)
smb_direct_destroy_pools(t);
ksmbd_conn_free(KSMBD_TRANS(t)->conn);
- kfree(t);
}
static struct smb_direct_sendmsg
@@ -462,7 +469,7 @@ static struct smb_direct_sendmsg
{
struct smb_direct_sendmsg *msg;
- msg = mempool_alloc(t->sendmsg_mempool, GFP_KERNEL);
+ msg = mempool_alloc(t->sendmsg_mempool, KSMBD_DEFAULT_GFP);
if (!msg)
return ERR_PTR(-ENOMEM);
msg->transport = t;
@@ -1396,7 +1403,7 @@ static int smb_direct_rdma_xmit(struct smb_direct_transport *t,
}
ksmbd_debug(RDMA, "RDMA %s, len %#x, needed credits %#x\n",
- is_read ? "read" : "write", buf_len, credits_needed);
+ str_read_write(is_read), buf_len, credits_needed);
ret = wait_for_rw_credits(t, credits_needed);
if (ret < 0)
@@ -1405,8 +1412,8 @@ static int smb_direct_rdma_xmit(struct smb_direct_transport *t,
/* build rdma_rw_ctx for each descriptor */
desc_buf = buf;
for (i = 0; i < desc_num; i++) {
- msg = kzalloc(offsetof(struct smb_direct_rdma_rw_msg, sg_list) +
- sizeof(struct scatterlist) * SG_CHUNK_SIZE, GFP_KERNEL);
+ msg = kzalloc(struct_size(msg, sg_list, SG_CHUNK_SIZE),
+ KSMBD_DEFAULT_GFP);
if (!msg) {
ret = -ENOMEM;
goto out;
@@ -1852,7 +1859,7 @@ static int smb_direct_create_pools(struct smb_direct_transport *t)
INIT_LIST_HEAD(&t->recvmsg_queue);
for (i = 0; i < t->recv_credit_max; i++) {
- recvmsg = mempool_alloc(t->recvmsg_mempool, GFP_KERNEL);
+ recvmsg = mempool_alloc(t->recvmsg_mempool, KSMBD_DEFAULT_GFP);
if (!recvmsg)
goto err;
recvmsg->transport = t;
@@ -1934,8 +1941,8 @@ static int smb_direct_create_qpair(struct smb_direct_transport *t,
return 0;
err:
if (t->qp) {
- ib_destroy_qp(t->qp);
t->qp = NULL;
+ rdma_destroy_qp(t->cm_id);
}
if (t->recv_cq) {
ib_destroy_cq(t->recv_cq);
@@ -2144,7 +2151,7 @@ static int smb_direct_ib_client_add(struct ib_device *ib_dev)
if (!rdma_frwr_is_supported(&ib_dev->attrs))
return 0;
- smb_dev = kzalloc(sizeof(*smb_dev), GFP_KERNEL);
+ smb_dev = kzalloc(sizeof(*smb_dev), KSMBD_DEFAULT_GFP);
if (!smb_dev)
return -ENOMEM;
smb_dev->ib_dev = ib_dev;
@@ -2241,38 +2248,16 @@ bool ksmbd_rdma_capable_netdev(struct net_device *netdev)
for (i = 0; i < smb_dev->ib_dev->phys_port_cnt; i++) {
struct net_device *ndev;
- if (smb_dev->ib_dev->ops.get_netdev) {
- ndev = smb_dev->ib_dev->ops.get_netdev(
- smb_dev->ib_dev, i + 1);
- if (!ndev)
- continue;
+ ndev = ib_device_get_netdev(smb_dev->ib_dev, i + 1);
+ if (!ndev)
+ continue;
- if (ndev == netdev) {
- dev_put(ndev);
- rdma_capable = true;
- goto out;
- }
+ if (ndev == netdev) {
dev_put(ndev);
- /* if ib_dev does not implement ops.get_netdev
- * check for matching infiniband GUID in hw_addr
- */
- } else if (netdev->type == ARPHRD_INFINIBAND) {
- struct netdev_hw_addr *ha;
- union ib_gid gid;
- u32 port_num;
- int ret;
-
- netdev_hw_addr_list_for_each(
- ha, &netdev->dev_addrs) {
- memcpy(&gid, ha->addr + 4, sizeof(gid));
- ret = ib_find_gid(smb_dev->ib_dev, &gid,
- &port_num, NULL);
- if (!ret) {
- rdma_capable = true;
- goto out;
- }
- }
+ rdma_capable = true;
+ goto out;
}
+ dev_put(ndev);
}
}
out:
@@ -2283,16 +2268,18 @@ out:
ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_UNKNOWN);
if (ibdev) {
- if (rdma_frwr_is_supported(&ibdev->attrs))
- rdma_capable = true;
+ rdma_capable = rdma_frwr_is_supported(&ibdev->attrs);
ib_device_put(ibdev);
}
}
+ ksmbd_debug(RDMA, "netdev(%s) rdma capable : %s\n",
+ netdev->name, str_true_false(rdma_capable));
+
return rdma_capable;
}
-static struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops = {
+static const struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops = {
.prepare = smb_direct_prepare,
.disconnect = smb_direct_disconnect,
.shutdown = smb_direct_shutdown,
@@ -2300,4 +2287,5 @@ static struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops = {
.read = smb_direct_read,
.rdma_read = smb_direct_rdma_read,
.rdma_write = smb_direct_rdma_write,
+ .free_transport = smb_direct_free_transport,
};
generated by cgit (git 2.34.1) at 2025-07-23 10:52:02 +0000