diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2022-10-13 14:01:03 +0200 |
|---|---|---|
| committer |   Dave Wallace <dwallacelf@gmail.com> | 2023-01-11 15:26:41 +0000 |
| commit | c04d8c41d151c82559ddcb90aef3f6dea994b4e9 (patch) | |
| tree | bcf316384e4bf6d2b30a488bd34732d1a9449b48 /src/vnet/devices/virtio | |
| parent | 6a07348f4a5312310c01fdd5af937ce26580eb2d (diff) | |
virtio: add option to bind interface to uio driver
Type: improvement
Change-Id: I30e66370c927afeb62ba3a2b3334bdc2a31d4561
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'src/vnet/devices/virtio')
| -rw-r--r-- | src/vnet/devices/virtio/cli.c | 8 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/pci.c | 18 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/pci.h | 8 |
3 files changed, 32 insertions, 2 deletions
diff --git a/src/vnet/devices/virtio/cli.c b/src/vnet/devices/virtio/cli.c index a78336997e2..2457e9b686e 100644 --- a/src/vnet/devices/virtio/cli.c +++ b/src/vnet/devices/virtio/cli.c @@ -55,6 +55,10 @@ virtio_pci_create_command_fn (vlib_main_t * vm, unformat_input_t * input, } else if (unformat (line_input, "packed")) args.virtio_flags |= VIRTIO_FLAG_PACKED; + else if (unformat (line_input, "bind force")) + args.bind = VIRTIO_BIND_FORCE; + else if (unformat (line_input, "bind")) + args.bind = VIRTIO_BIND_DEFAULT; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); @@ -70,8 +74,8 @@ virtio_pci_create_command_fn (vlib_main_t * vm, unformat_input_t * input, VLIB_CLI_COMMAND (virtio_pci_create_command, static) = { .path = "create interface virtio", .short_help = "create interface virtio <pci-address> " - "[feature-mask <hex-mask>] [gso-enabled] [csum-enabled] " - "[buffering [size <buffering-szie>]] [packed]", + "[feature-mask <hex-mask>] [gso-enabled] [csum-enabled] " + "[buffering [size <buffering-szie>]] [packed] [bind [force]]", .function = virtio_pci_create_command_fn, }; /* *INDENT-ON* */ diff --git a/src/vnet/devices/virtio/pci.c b/src/vnet/devices/virtio/pci.c index f678c3960bf..cb177b3e469 100644 --- a/src/vnet/devices/virtio/pci.c +++ b/src/vnet/devices/virtio/pci.c @@ -1343,6 +1343,24 @@ virtio_pci_create_if (vlib_main_t * vm, virtio_pci_create_if_args_t * args) } /* *INDENT-ON* */ + if (args->bind) + { + vlib_pci_addr_t pci = { .as_u32 = args->addr }; + error = vlib_pci_bind_to_uio (vm, &pci, (char *) "auto", + VIRTIO_BIND_FORCE == args->bind); + if (error) + { + args->rv = VNET_API_ERROR_INVALID_INTERFACE; + args->error = + clib_error_return (error, "%U: %s", format_vlib_pci_addr, &pci, + "error encountered on binding pci device"); + vlib_log (VLIB_LOG_LEVEL_ERR, vim->log_default, "%U: %s", + format_vlib_pci_addr, &pci, + "error encountered on binding pci devicee"); + return; + } + } + pool_get (vim->interfaces, vif); vif->dev_instance = vif - vim->interfaces; vif->per_interface_next_index = ~0; diff --git a/src/vnet/devices/virtio/pci.h b/src/vnet/devices/virtio/pci.h index db20537bc3f..0cada61d9b8 100644 --- a/src/vnet/devices/virtio/pci.h +++ b/src/vnet/devices/virtio/pci.h @@ -227,6 +227,13 @@ typedef enum #undef _ } virtio_flag_t; +typedef enum +{ + VIRTIO_BIND_NONE = 0, + VIRTIO_BIND_DEFAULT = 1, + VIRTIO_BIND_FORCE = 2, +} __clib_packed virtio_bind_t; + typedef struct { u32 addr; @@ -238,6 +245,7 @@ typedef struct u64 features; u8 gso_enabled; u8 checksum_offload_enabled; + virtio_bind_t bind; u32 buffering_size; u32 virtio_flags; clib_error_t *error; |