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nvmet-rdma: use generic inet_pton_with_scope 

Instead of parsing address strings, use a generic
helper. This also adds ipv6 (with address scopes)
support.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Sagi Grimberg 2017-02-05 21:49:04 +02:00 committed by Jens Axboe
parent b1a951fe46
commit 670c2a3ad5
1 changed files with 29 additions and 13 deletions
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42
drivers/nvme/target/rdma.c
View File

@ -1432,12 +1432,16 @@ restart:
static int nvmet_rdma_add_port(struct nvmet_port *port)
{
struct rdma_cm_id *cm_id;
struct sockaddr_in addr_in;
u16 port_in;
struct sockaddr_storage addr = { };
__kernel_sa_family_t af;
int ret;
switch (port->disc_addr.adrfam) {
case NVMF_ADDR_FAMILY_IP4:
af = AF_INET;
break;
case NVMF_ADDR_FAMILY_IP6:
af = AF_INET6;
break;
default:
pr_err("address family %d not supported\n",
@ -1445,13 +1449,13 @@ static int nvmet_rdma_add_port(struct nvmet_port *port)
return -EINVAL;
}
ret = kstrtou16(port->disc_addr.trsvcid, 0, &port_in);
if (ret)
ret = inet_pton_with_scope(&init_net, af, port->disc_addr.traddr,
port->disc_addr.trsvcid, &addr);
if (ret) {
pr_err("malformed ip/port passed: %s:%s\n",
port->disc_addr.traddr, port->disc_addr.trsvcid);
return ret;
addr_in.sin_family = AF_INET;
addr_in.sin_addr.s_addr = in_aton(port->disc_addr.traddr);
addr_in.sin_port = htons(port_in);
}
cm_id = rdma_create_id(&init_net, nvmet_rdma_cm_handler, port,
RDMA_PS_TCP, IB_QPT_RC);
@ -1460,20 +1464,32 @@ static int nvmet_rdma_add_port(struct nvmet_port *port)
return PTR_ERR(cm_id);
}
ret = rdma_bind_addr(cm_id, (struct sockaddr *)&addr_in);
/*
* Allow both IPv4 and IPv6 sockets to bind a single port
* at the same time.
*/
ret = rdma_set_afonly(cm_id, 1);
if (ret) {
pr_err("binding CM ID to %pISpc failed (%d)\n", &addr_in, ret);
pr_err("rdma_set_afonly failed (%d)\n", ret);
goto out_destroy_id;
}
ret = rdma_bind_addr(cm_id, (struct sockaddr *)&addr);
if (ret) {
pr_err("binding CM ID to %pISpcs failed (%d)\n",
(struct sockaddr *)&addr, ret);
goto out_destroy_id;
}
ret = rdma_listen(cm_id, 128);
if (ret) {
pr_err("listening to %pISpc failed (%d)\n", &addr_in, ret);
pr_err("listening to %pISpcs failed (%d)\n",
(struct sockaddr *)&addr, ret);
goto out_destroy_id;
}
pr_info("enabling port %d (%pISpc)\n",
le16_to_cpu(port->disc_addr.portid), &addr_in);
pr_info("enabling port %d (%pISpcs)\n",
le16_to_cpu(port->disc_addr.portid), (struct sockaddr *)&addr);
port->priv = cm_id;
return 0;