diff options
| -rw-r--r-- | drivers/net/hyperv/hyperv_net.h | 19 | ||||
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 5 | ||||
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 4 |
3 files changed, 21 insertions, 7 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index 3d940c67ea94..845ddc7bba46 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -637,14 +637,27 @@ struct nvsp_message { #define NETVSC_MTU 65535 #define NETVSC_MTU_MIN ETH_MIN_MTU -#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */ -#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */ -#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ +/* Max buffer sizes allowed by a host */ +#define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */ +#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */ +#define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16) + +#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ +#define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024) + #define NETVSC_INVALID_INDEX -1 #define NETVSC_SEND_SECTION_SIZE 6144 #define NETVSC_RECV_SECTION_SIZE 1728 +/* Default size of TX buf: 1MB, RX buf: 16MB */ +#define NETVSC_MIN_TX_SECTIONS 10 +#define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \ + / NETVSC_SEND_SECTION_SIZE) +#define NETVSC_MIN_RX_SECTIONS 10 +#define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \ + / NETVSC_RECV_SECTION_SIZE) + #define NETVSC_RECEIVE_BUFFER_ID 0xcafe #define NETVSC_SEND_BUFFER_ID 0 diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index e4bcd202a56a..e5d16a8cf0d6 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -268,6 +268,11 @@ static int netvsc_init_buf(struct hv_device *device, buf_size = device_info->recv_sections * device_info->recv_section_size; buf_size = roundup(buf_size, PAGE_SIZE); + /* Legacy hosts only allow smaller receive buffer */ + if (net_device->nvsp_version <= NVSP_PROTOCOL_VERSION_2) + buf_size = min_t(unsigned int, buf_size, + NETVSC_RECEIVE_BUFFER_SIZE_LEGACY); + net_device->recv_buf = vzalloc(buf_size); if (!net_device->recv_buf) { netdev_err(ndev, diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index dc70de674ca9..b6a434ac64d3 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -47,10 +47,6 @@ #include "hyperv_net.h" #define RING_SIZE_MIN 64 -#define NETVSC_MIN_TX_SECTIONS 10 -#define NETVSC_DEFAULT_TX 192 /* ~1M */ -#define NETVSC_MIN_RX_SECTIONS 10 /* ~64K */ -#define NETVSC_DEFAULT_RX 10485 /* Max ~16M */ #define LINKCHANGE_INT (2 * HZ) #define VF_TAKEOVER_INT (HZ / 10) |