diff options
Diffstat (limited to 'drivers/nvme/target')
| -rw-r--r-- | drivers/nvme/target/tcp.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index af674fc0bb1e..cbff1038bdb3 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -19,6 +19,16 @@ #define NVMET_TCP_DEF_INLINE_DATA_SIZE (4 * PAGE_SIZE) +/* Define the socket priority to use for connections were it is desirable + * that the NIC consider performing optimized packet processing or filtering. + * A non-zero value being sufficient to indicate general consideration of any + * possible optimization. Making it a module param allows for alternative + * values that may be unique for some NIC implementations. + */ +static int so_priority; +module_param(so_priority, int, 0644); +MODULE_PARM_DESC(so_priority, "nvmet tcp socket optimize priority"); + #define NVMET_TCP_RECV_BUDGET 8 #define NVMET_TCP_SEND_BUDGET 8 #define NVMET_TCP_IO_WORK_BUDGET 64 @@ -1433,6 +1443,13 @@ static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) if (ret) return ret; + if (so_priority > 0) { + ret = kernel_setsockopt(sock, SOL_SOCKET, SO_PRIORITY, + (char *)&so_priority, sizeof(so_priority)); + if (ret) + return ret; + } + /* Set socket type of service */ if (inet->rcv_tos > 0) { int tos = inet->rcv_tos; @@ -1622,6 +1639,15 @@ static int nvmet_tcp_add_port(struct nvmet_port *nport) goto err_sock; } + if (so_priority > 0) { + ret = kernel_setsockopt(port->sock, SOL_SOCKET, SO_PRIORITY, + (char *)&so_priority, sizeof(so_priority)); + if (ret) { + pr_err("failed to set SO_PRIORITY sock opt %d\n", ret); + goto err_sock; + } + } + ret = kernel_bind(port->sock, (struct sockaddr *)&port->addr, sizeof(port->addr)); if (ret) { |