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-rw-r--r--docs/spelling_wordlist.txt1
-rw-r--r--src/plugins/af_packet/af_packet.c68
-rw-r--r--src/plugins/af_packet/af_packet.h2
-rw-r--r--src/plugins/af_packet/cli.c46
4 files changed, 115 insertions, 2 deletions
diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
index 1aa5249cbd5..590d6cdaa02 100644
--- a/docs/spelling_wordlist.txt
+++ b/docs/spelling_wordlist.txt
@@ -905,6 +905,7 @@ py
pypi
qemu
Qemu
+qdisc
qos
QoS
qs
diff --git a/src/plugins/af_packet/af_packet.c b/src/plugins/af_packet/af_packet.c
index 51aa11c9b1c..6da6112c8a5 100644
--- a/src/plugins/af_packet/af_packet.c
+++ b/src/plugins/af_packet/af_packet.c
@@ -450,6 +450,7 @@ af_packet_queue_init (vlib_main_t *vm, af_packet_if_t *apif,
if (ret != 0)
goto error;
+ vec_add1 (apif->fds, fd);
vec_add1 (apif->rings, ring);
ring_addr = ring.ring_start_addr;
}
@@ -571,6 +572,7 @@ af_packet_create_if (af_packet_create_if_arg_t *arg)
u8 *host_if_name_dup = 0;
int host_if_index = -1;
int ret = 0;
+ u32 i = 0;
p = mhash_get (&apm->if_index_by_host_if_name, arg->host_if_name);
if (p)
@@ -730,6 +732,10 @@ error:
close (fd2);
fd2 = -1;
}
+ vec_foreach_index (i, apif->fds)
+ if (apif->fds[i] != -1)
+ close (apif->fds[i]);
+ vec_free (apif->fds);
vec_free (host_if_name_dup);
if (apif)
{
@@ -743,7 +749,6 @@ static int
af_packet_rx_queue_free (af_packet_if_t *apif, af_packet_queue_t *rx_queue)
{
clib_file_del_by_index (&file_main, rx_queue->clib_file_index);
- close (rx_queue->fd);
rx_queue->fd = -1;
rx_queue->rx_ring = NULL;
vec_free (rx_queue->rx_req);
@@ -754,7 +759,6 @@ af_packet_rx_queue_free (af_packet_if_t *apif, af_packet_queue_t *rx_queue)
static int
af_packet_tx_queue_free (af_packet_if_t *apif, af_packet_queue_t *tx_queue)
{
- close (tx_queue->fd);
tx_queue->fd = -1;
clib_spinlock_free (&tx_queue->lockp);
tx_queue->tx_ring = NULL;
@@ -793,6 +797,7 @@ af_packet_delete_if (u8 *host_if_name)
af_packet_queue_t *tx_queue;
af_packet_ring_t *ring;
uword *p;
+ u32 i = 0;
p = mhash_get (&apm->if_index_by_host_if_name, host_if_name);
if (p == NULL)
@@ -811,6 +816,9 @@ af_packet_delete_if (u8 *host_if_name)
vnet_delete_hw_interface (vnm, apif->hw_if_index);
/* clean up */
+ vec_foreach_index (i, apif->fds)
+ if (apif->fds[i] != -1)
+ close (apif->fds[i]);
vec_foreach (rx_queue, apif->rx_queues)
af_packet_rx_queue_free (apif, rx_queue);
vec_foreach (tx_queue, apif->tx_queues)
@@ -818,6 +826,8 @@ af_packet_delete_if (u8 *host_if_name)
vec_foreach (ring, apif->rings)
af_packet_ring_free (apif, ring);
+ vec_free (apif->fds);
+ apif->fds = NULL;
vec_free (apif->rx_queues);
apif->rx_queues = NULL;
vec_free (apif->tx_queues);
@@ -838,6 +848,60 @@ af_packet_delete_if (u8 *host_if_name)
}
int
+af_packet_enable_disable_qdisc_bypass (u32 sw_if_index, u8 enable_disable)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_if_t *apif;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hw;
+ u32 i;
+
+ hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index);
+
+ if (hw->dev_class_index != af_packet_device_class.index)
+ return VNET_API_ERROR_INVALID_INTERFACE;
+
+ apif = pool_elt_at_index (apm->interfaces, hw->dev_instance);
+
+#if defined(PACKET_QDISC_BYPASS)
+ vec_foreach_index (i, apif->fds)
+ {
+ if (enable_disable)
+ {
+ int opt = 1;
+
+ /* Introduced with Linux 3.14 so the ifdef should eventually be
+ * removed */
+ if (setsockopt (apif->fds[i], SOL_PACKET, PACKET_QDISC_BYPASS, &opt,
+ sizeof (opt)) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to enable qdisc bypass error "
+ "handling option: %s (errno %d)",
+ strerror (errno), errno);
+ }
+ apif->is_qdisc_bypass_enabled = 1;
+ }
+ else
+ {
+ int opt = 0;
+ if (setsockopt (apif->fds[i], SOL_PACKET, PACKET_QDISC_BYPASS, &opt,
+ sizeof (opt)) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to disable qdisc bypass error "
+ "handling option: %s (errno %d)",
+ strerror (errno), errno);
+ }
+ apif->is_qdisc_bypass_enabled = 0;
+ }
+ }
+
+#endif
+ return 0;
+}
+
+int
af_packet_set_l4_cksum_offload (u32 sw_if_index, u8 set)
{
// deprecated ...
diff --git a/src/plugins/af_packet/af_packet.h b/src/plugins/af_packet/af_packet.h
index 7aa5e6d5b9a..8026c12bc6b 100644
--- a/src/plugins/af_packet/af_packet.h
+++ b/src/plugins/af_packet/af_packet.h
@@ -121,6 +121,7 @@ typedef struct
af_packet_ring_t *rings;
u8 is_qdisc_bypass_enabled;
u8 is_fanout_enabled;
+ int *fds;
} af_packet_if_t;
typedef struct
@@ -164,6 +165,7 @@ extern vlib_node_registration_t af_packet_input_node;
int af_packet_create_if (af_packet_create_if_arg_t *arg);
int af_packet_delete_if (u8 *host_if_name);
int af_packet_set_l4_cksum_offload (u32 sw_if_index, u8 set);
+int af_packet_enable_disable_qdisc_bypass (u32 sw_if_index, u8 enable_disable);
int af_packet_dump_ifs (af_packet_if_detail_t ** out_af_packet_ifs);
format_function_t format_af_packet_device_name;
diff --git a/src/plugins/af_packet/cli.c b/src/plugins/af_packet/cli.c
index 6a8377540d8..2af3fb17ee5 100644
--- a/src/plugins/af_packet/cli.c
+++ b/src/plugins/af_packet/cli.c
@@ -278,6 +278,52 @@ VLIB_CLI_COMMAND (af_packet_set_l4_cksum_offload_command, static) = {
.function = af_packet_set_l4_cksum_offload_command_fn,
};
+static clib_error_t *
+af_packet_enable_disable_qdisc_bypass_command_fn (vlib_main_t *vm,
+ unformat_input_t *input,
+ vlib_cli_command_t *cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 enable_disable = 0;
+ clib_error_t *error = NULL;
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U", unformat_vnet_sw_interface, vnm,
+ &sw_if_index))
+ ;
+ else if (unformat (line_input, "enable"))
+ enable_disable = 1;
+ else if (unformat (line_input, "disable"))
+ enable_disable = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (af_packet_enable_disable_qdisc_bypass (sw_if_index, enable_disable) < 0)
+ error = clib_error_return (0, "not an af_packet interface");
+
+done:
+ unformat_free (line_input);
+ return error;
+}
+
+VLIB_CLI_COMMAND (af_packet_enable_disable_qdisc_bypass_command, static) = {
+ .path = "set host-interface qdisc-bypass",
+ .short_help =
+ "set host-interface qdisc-bypass <host-if-name> <enable|disable>",
+ .function = af_packet_enable_disable_qdisc_bypass_command_fn,
+};
+
clib_error_t *
af_packet_cli_init (vlib_main_t * vm)
{