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authorDamjan Marion <damarion@cisco.com>2022-01-10 19:38:57 +0000
committerDamjan Marion <dmarion@me.com>2022-01-10 20:51:52 +0000
commitc48ec5d568146389f3c539cea003c242f85e5239 (patch)
tree11a25709bea5db0a93186d56b8f9c8ad1486eba0 /src/vnet/devices/tap/tap.c
parent5048bc6ed51592145fcb710cdc06860f25b35e21 (diff)
interface: refactor interface capabilities code, part 2
Type: improvement Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ie595e69af8657b0ee18a84ac71c5d433108d9ef8
Diffstat (limited to 'src/vnet/devices/tap/tap.c')
-rw-r--r--src/vnet/devices/tap/tap.c58
1 files changed, 29 insertions, 29 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c
index 19333f0ab10..2e7ad39f3b4 100644
--- a/src/vnet/devices/tap/tap.c
+++ b/src/vnet/devices/tap/tap.c
@@ -130,6 +130,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
tap_main_t *tm = &tap_main;
vnet_sw_interface_t *sw;
vnet_hw_interface_t *hw;
+ vnet_hw_if_caps_change_t cc;
int i, num_vhost_queues;
int old_netns_fd = -1;
struct ifreq ifr = {.ifr_flags = IFF_NO_PI | IFF_VNET_HDR };
@@ -665,16 +666,16 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
args->sw_if_index = vif->sw_if_index;
args->rv = 0;
hw = vnet_get_hw_interface (vnm, vif->hw_if_index);
- hw->caps |= VNET_HW_IF_CAP_INT_MODE;
+ cc.mask = VNET_HW_IF_CAP_INT_MODE | VNET_HW_IF_CAP_TCP_GSO |
+ VNET_HW_IF_CAP_TX_TCP_CKSUM | VNET_HW_IF_CAP_TX_UDP_CKSUM;
+ cc.val = VNET_HW_IF_CAP_INT_MODE;
+
if (args->tap_flags & TAP_FLAG_GSO)
- {
- hw->caps |= VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_TX_TCP_CKSUM |
- VNET_HW_IF_CAP_TX_UDP_CKSUM;
- }
+ cc.val |= VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_TX_TCP_CKSUM |
+ VNET_HW_IF_CAP_TX_UDP_CKSUM;
else if (args->tap_flags & TAP_FLAG_CSUM_OFFLOAD)
- {
- hw->caps |= VNET_HW_IF_CAP_TX_TCP_CKSUM | VNET_HW_IF_CAP_TX_UDP_CKSUM;
- }
+ cc.val |= VNET_HW_IF_CAP_TX_TCP_CKSUM | VNET_HW_IF_CAP_TX_UDP_CKSUM;
+
if ((args->tap_flags & TAP_FLAG_GSO)
&& (args->tap_flags & TAP_FLAG_GRO_COALESCE))
{
@@ -690,6 +691,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
vnet_sw_interface_set_mtu (vnm, hw->sw_if_index, hw->max_packet_bytes);
}
+ vnet_hw_if_change_caps (vnm, vif->hw_if_index, &cc);
virtio_pre_input_node_enable (vm, vif);
virtio_vring_set_rx_queues (vm, vif);
virtio_vring_set_tx_queues (vm, vif);
@@ -770,6 +772,7 @@ tap_csum_offload_enable_disable (vlib_main_t * vm, u32 sw_if_index,
virtio_main_t *mm = &virtio_main;
virtio_if_t *vif;
vnet_hw_interface_t *hw;
+ vnet_hw_if_caps_change_t cc;
clib_error_t *err = 0;
int i = 0;
@@ -787,21 +790,19 @@ tap_csum_offload_enable_disable (vlib_main_t * vm, u32 sw_if_index,
_IOCTL (vif->tap_fds[i], TUNSETOFFLOAD, offload);
vif->gso_enabled = 0;
vif->packet_coalesce = 0;
- vif->csum_offload_enabled = enable_disable ? 1 : 0;
-
- if ((hw->caps & VNET_HW_IF_CAP_TCP_GSO) != 0)
- {
- hw->caps &= ~VNET_HW_IF_CAP_TCP_GSO;
- }
+ cc.mask = VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_L4_TX_CKSUM;
if (enable_disable)
{
- hw->caps |= VNET_HW_IF_CAP_L4_TX_CKSUM;
+ cc.val = VNET_HW_IF_CAP_L4_TX_CKSUM;
+ vif->csum_offload_enabled = 1;
}
else
{
- hw->caps &= ~VNET_HW_IF_CAP_L4_TX_CKSUM;
+ cc.val = 0;
+ vif->csum_offload_enabled = 0;
}
+ vnet_hw_if_change_caps (vnm, vif->hw_if_index, &cc);
error:
if (err)
@@ -821,6 +822,7 @@ tap_gso_enable_disable (vlib_main_t * vm, u32 sw_if_index, int enable_disable,
virtio_main_t *mm = &virtio_main;
virtio_if_t *vif;
vnet_hw_interface_t *hw;
+ vnet_hw_if_caps_change_t cc;
clib_error_t *err = 0;
int i = 0;
@@ -836,27 +838,25 @@ tap_gso_enable_disable (vlib_main_t * vm, u32 sw_if_index, int enable_disable,
unsigned int offload = enable_disable ? gso_on : gso_off;
vec_foreach_index (i, vif->tap_fds)
_IOCTL (vif->tap_fds[i], TUNSETOFFLOAD, offload);
- vif->gso_enabled = enable_disable ? 1 : 0;
- vif->csum_offload_enabled = 0;
+
+ cc.mask = VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_L4_TX_CKSUM;
+
if (enable_disable)
{
- if ((hw->caps & VNET_HW_IF_CAP_TCP_GSO) == 0)
- {
- hw->caps |= VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_L4_TX_CKSUM;
- }
+ cc.val = cc.mask;
+ vif->gso_enabled = 1;
+ vif->csum_offload_enabled = 1;
if (is_packet_coalesce)
- {
- virtio_set_packet_coalesce (vif);
- }
+ virtio_set_packet_coalesce (vif);
}
else
{
- if ((hw->caps & VNET_HW_IF_CAP_TCP_GSO) != 0)
- {
- hw->caps &= ~(VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_L4_TX_CKSUM);
- }
+ cc.val = 0;
+ vif->gso_enabled = 0;
+ vif->csum_offload_enabled = 0;
vif->packet_coalesce = 0;
}
+ vnet_hw_if_change_caps (vnm, vif->hw_if_index, &cc);
error:
if (err)