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Message-Id: <20231122102226.986265-5-jiawenwu@trustnetic.com>
Date: Wed, 22 Nov 2023 18:22:25 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
linux@...linux.org.uk,
andrew@...n.ch,
horms@...nel.org
Cc: mengyuanlou@...-swift.com,
Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next 4/5] net: wangxun: add ethtool_ops for channel number
Add support to get RX/TX queue number with ethtool -l, and set RX/TX
queue number with ethtool -L.
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
.../net/ethernet/wangxun/libwx/wx_ethtool.c | 65 +++++++++++++
.../net/ethernet/wangxun/libwx/wx_ethtool.h | 4 +
drivers/net/ethernet/wangxun/libwx/wx_hw.c | 94 +++++++++++++++++++
drivers/net/ethernet/wangxun/libwx/wx_lib.c | 21 ++++-
drivers/net/ethernet/wangxun/libwx/wx_type.h | 25 ++++-
.../net/ethernet/wangxun/ngbe/ngbe_ethtool.c | 15 +++
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 60 +++++++-----
drivers/net/ethernet/wangxun/ngbe/ngbe_type.h | 2 +
.../ethernet/wangxun/txgbe/txgbe_ethtool.c | 15 +++
.../net/ethernet/wangxun/txgbe/txgbe_main.c | 39 ++++++++
.../net/ethernet/wangxun/txgbe/txgbe_type.h | 2 +
11 files changed, 312 insertions(+), 30 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
index abd2f4c92654..4e467aa1cc19 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
@@ -304,3 +304,68 @@ int wx_set_coalesce(struct net_device *netdev,
return 0;
}
EXPORT_SYMBOL(wx_set_coalesce);
+
+static unsigned int wx_max_channels(struct wx *wx)
+{
+ unsigned int max_combined;
+
+ if (!(wx->msix_entries)) {
+ /* We only support one q_vector without MSI-X */
+ max_combined = 1;
+ } else {
+ /* support up to max allowed queues with RSS */
+ if (wx->mac.type == wx_mac_sp)
+ max_combined = 63;
+ else
+ max_combined = 8;
+ }
+
+ return max_combined;
+}
+
+void wx_get_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct wx *wx = netdev_priv(dev);
+
+ /* report maximum channels */
+ ch->max_combined = wx_max_channels(wx);
+
+ /* report info for other vector */
+ if (wx->msix_entries) {
+ ch->max_other = 1;
+ ch->other_count = 1;
+ }
+
+ /* record RSS queues */
+ ch->combined_count = wx->ring_feature[RING_F_RSS].indices;
+
+ /* nothing else to report if RSS is disabled */
+ if (ch->combined_count == 1)
+ return;
+}
+EXPORT_SYMBOL(wx_get_channels);
+
+int wx_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ unsigned int count = ch->combined_count;
+ struct wx *wx = netdev_priv(dev);
+
+ /* verify they are not requesting separate vectors */
+ if (!count || ch->rx_count || ch->tx_count)
+ return -EINVAL;
+
+ /* verify other_count has not changed */
+ if (ch->other_count != 1)
+ return -EINVAL;
+
+ /* verify the number of channels does not exceed hardware limits */
+ if (count > wx_max_channels(wx))
+ return -EINVAL;
+
+ wx->ring_feature[RING_F_RSS].limit = count;
+
+ return 0;
+}
+EXPORT_SYMBOL(wx_set_channels);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.h b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.h
index 3a80f8e63719..5b5af3689c04 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.h
@@ -25,4 +25,8 @@ int wx_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack);
+void wx_get_channels(struct net_device *dev,
+ struct ethtool_channels *ch);
+int wx_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch);
#endif /* _WX_ETHTOOL_H_ */
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
index 40897419a970..bad56bba26fc 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
@@ -1597,6 +1597,71 @@ static void wx_restore_vlan(struct wx *wx)
wx_vlan_rx_add_vid(wx->netdev, htons(ETH_P_8021Q), vid);
}
+static void wx_store_reta(struct wx *wx)
+{
+ u8 *indir_tbl = wx->rss_indir_tbl;
+ u32 reta = 0;
+ u32 i;
+
+ /* Fill out the redirection table as follows:
+ * - 8 bit wide entries containing 4 bit RSS index
+ */
+ for (i = 0; i < 128; i++) {
+ reta |= indir_tbl[i] << (i & 0x3) * 8;
+ if ((i & 3) == 3) {
+ wr32(wx, WX_RDB_RSSTBL(i >> 2), reta);
+ reta = 0;
+ }
+ }
+}
+
+static void wx_setup_reta(struct wx *wx)
+{
+ u16 rss_i = wx->ring_feature[RING_F_RSS].indices;
+ u32 i, j;
+
+ /* Fill out hash function seeds */
+ for (i = 0; i < 10; i++)
+ wr32(wx, WX_RDB_RSSRK(i), wx->rss_key[i]);
+
+ /* Fill out redirection table */
+ memset(wx->rss_indir_tbl, 0, sizeof(wx->rss_indir_tbl));
+
+ for (i = 0, j = 0; i < 128; i++, j++) {
+ if (j == rss_i)
+ j = 0;
+
+ wx->rss_indir_tbl[i] = j;
+ }
+
+ wx_store_reta(wx);
+}
+
+static void wx_setup_mrqc(struct wx *wx)
+{
+ u32 rss_field = 0;
+
+ /* Disable indicating checksum in descriptor, enables RSS hash */
+ wr32m(wx, WX_PSR_CTL, WX_PSR_CTL_PCSD, WX_PSR_CTL_PCSD);
+
+ /* Perform hash on these packet types */
+ rss_field = WX_RDB_RA_CTL_RSS_IPV4 |
+ WX_RDB_RA_CTL_RSS_IPV4_TCP |
+ WX_RDB_RA_CTL_RSS_IPV4_UDP |
+ WX_RDB_RA_CTL_RSS_IPV6 |
+ WX_RDB_RA_CTL_RSS_IPV6_TCP |
+ WX_RDB_RA_CTL_RSS_IPV6_UDP;
+
+ netdev_rss_key_fill(wx->rss_key, sizeof(wx->rss_key));
+
+ wx_setup_reta(wx);
+
+ if (wx->rss_enabled)
+ rss_field |= WX_RDB_RA_CTL_RSS_EN;
+
+ wr32(wx, WX_RDB_RA_CTL, rss_field);
+}
+
/**
* wx_configure_rx - Configure Receive Unit after Reset
* @wx: pointer to private structure
@@ -1629,6 +1694,8 @@ void wx_configure_rx(struct wx *wx)
wr32(wx, WX_PSR_CTL, psrctl);
}
+ wx_setup_mrqc(wx);
+
/* set_rx_buffer_len must be called before ring initialization */
wx_set_rx_buffer_len(wx);
@@ -1826,6 +1893,28 @@ int wx_get_pcie_msix_counts(struct wx *wx, u16 *msix_count, u16 max_msix_count)
}
EXPORT_SYMBOL(wx_get_pcie_msix_counts);
+/**
+ * wx_init_rss_key - Initialize wx RSS key
+ * @wx: device handle
+ *
+ * Allocates and initializes the RSS key if it is not allocated.
+ **/
+static inline int wx_init_rss_key(struct wx *wx)
+{
+ u32 *rss_key;
+
+ if (!wx->rss_key) {
+ rss_key = kzalloc(WX_RSS_KEY_SIZE, GFP_KERNEL);
+ if (unlikely(!rss_key))
+ return -ENOMEM;
+
+ netdev_rss_key_fill(rss_key, WX_RSS_KEY_SIZE);
+ wx->rss_key = rss_key;
+ }
+
+ return 0;
+}
+
int wx_sw_init(struct wx *wx)
{
struct pci_dev *pdev = wx->pdev;
@@ -1861,6 +1950,11 @@ int wx_sw_init(struct wx *wx)
return -ENOMEM;
}
+ if (wx_init_rss_key(wx)) {
+ wx_err(wx, "rss key allocation failed\n");
+ return -ENOMEM;
+ }
+
wx->fc.pause_time = WX_DEFAULT_FCPAUSE;
wx->fc.disable_fc_autoneg = false;
wx->fc.rx_pause = true;
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c
index 9eb9ab8fe581..b97162fc9550 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c
@@ -1636,6 +1636,12 @@ EXPORT_SYMBOL(wx_napi_disable_all);
**/
static void wx_set_rss_queues(struct wx *wx)
{
+ struct wx_ring_feature *f;
+
+ /* set mask for 16 queue limit of RSS */
+ f = &wx->ring_feature[RING_F_RSS];
+ f->indices = f->limit;
+
wx->num_rx_queues = wx->mac.max_rx_queues;
wx->num_tx_queues = wx->mac.max_tx_queues;
}
@@ -1713,9 +1719,11 @@ static int wx_set_interrupt_capability(struct wx *wx)
if (ret == 0 || (ret == -ENOMEM))
return ret;
- wx->num_rx_queues = 1;
- wx->num_tx_queues = 1;
- wx->num_q_vectors = 1;
+ /* Disable RSS */
+ dev_warn(&wx->pdev->dev, "Disabling RSS support\n");
+ wx->ring_feature[RING_F_RSS].limit = 1;
+
+ wx_set_num_queues(wx);
/* minmum one for queue, one for misc*/
nvecs = 1;
@@ -2726,11 +2734,14 @@ int wx_set_features(struct net_device *netdev, netdev_features_t features)
netdev_features_t changed = netdev->features ^ features;
struct wx *wx = netdev_priv(netdev);
- if (changed & NETIF_F_RXHASH)
+ if (features & NETIF_F_RXHASH) {
wr32m(wx, WX_RDB_RA_CTL, WX_RDB_RA_CTL_RSS_EN,
WX_RDB_RA_CTL_RSS_EN);
- else
+ wx->rss_enabled = true;
+ } else {
wr32m(wx, WX_RDB_RA_CTL, WX_RDB_RA_CTL_RSS_EN, 0);
+ wx->rss_enabled = false;
+ }
if (changed &
(NETIF_F_HW_VLAN_CTAG_RX |
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h
index 8c795f908d1e..45a98e23591d 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -146,8 +146,16 @@
#define WX_RDB_PL_CFG_L2HDR BIT(3)
#define WX_RDB_PL_CFG_TUN_TUNHDR BIT(4)
#define WX_RDB_PL_CFG_TUN_OUTL2HDR BIT(5)
+#define WX_RDB_RSSTBL(_i) (0x19400 + ((_i) * 4))
+#define WX_RDB_RSSRK(_i) (0x19480 + ((_i) * 4))
#define WX_RDB_RA_CTL 0x194F4
#define WX_RDB_RA_CTL_RSS_EN BIT(2) /* RSS Enable */
+#define WX_RDB_RA_CTL_RSS_IPV4_TCP BIT(16)
+#define WX_RDB_RA_CTL_RSS_IPV4 BIT(17)
+#define WX_RDB_RA_CTL_RSS_IPV6 BIT(20)
+#define WX_RDB_RA_CTL_RSS_IPV6_TCP BIT(21)
+#define WX_RDB_RA_CTL_RSS_IPV4_UDP BIT(22)
+#define WX_RDB_RA_CTL_RSS_IPV6_UDP BIT(23)
/******************************* PSR Registers *******************************/
/* psr control */
@@ -912,6 +920,19 @@ struct wx_q_vector {
struct wx_ring ring[] ____cacheline_internodealigned_in_smp;
};
+struct wx_ring_feature {
+ u16 limit; /* upper limit on feature indices */
+ u16 indices; /* current value of indices */
+ u16 mask; /* Mask used for feature to ring mapping */
+ u16 offset; /* offset to start of feature */
+};
+
+enum wx_ring_f_enum {
+ RING_F_NONE = 0,
+ RING_F_RSS,
+ RING_F_ARRAY_SIZE /* must be last in enum set */
+};
+
enum wx_isb_idx {
WX_ISB_HEADER,
WX_ISB_MISC,
@@ -1018,6 +1039,7 @@ struct wx {
unsigned int queues_per_pool;
struct msix_entry *msix_entries;
+ struct wx_ring_feature ring_feature[RING_F_ARRAY_SIZE];
/* misc interrupt status block */
dma_addr_t isb_dma;
@@ -1025,8 +1047,9 @@ struct wx {
u32 isb_tag[WX_ISB_MAX];
#define WX_MAX_RETA_ENTRIES 128
+#define WX_RSS_INDIR_TBL_MAX 64
u8 rss_indir_tbl[WX_MAX_RETA_ENTRIES];
-
+ bool rss_enabled;
#define WX_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
u32 *rss_key;
u32 wol;
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
index 712e0308c397..e4ac46242965 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
@@ -117,6 +117,19 @@ static int ngbe_set_ringparam(struct net_device *netdev,
return err;
}
+static int ngbe_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ int err;
+
+ err = wx_set_channels(dev, ch);
+ if (err < 0)
+ return err;
+
+ /* use setup TC to update any traffic class queue mapping */
+ return ngbe_setup_tc(dev, netdev_get_num_tc(dev));
+}
+
static const struct ethtool_ops ngbe_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ,
@@ -138,6 +151,8 @@ static const struct ethtool_ops ngbe_ethtool_ops = {
.set_ringparam = ngbe_set_ringparam,
.get_coalesce = wx_get_coalesce,
.set_coalesce = wx_set_coalesce,
+ .get_channels = wx_get_channels,
+ .set_channels = ngbe_set_channels,
};
void ngbe_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index 0c0b2f7bdf74..c9dc885f8527 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -79,28 +79,6 @@ static void ngbe_init_type_code(struct wx *wx)
}
}
-/**
- * ngbe_init_rss_key - Initialize wx RSS key
- * @wx: device handle
- *
- * Allocates and initializes the RSS key if it is not allocated.
- **/
-static inline int ngbe_init_rss_key(struct wx *wx)
-{
- u32 *rss_key;
-
- if (!wx->rss_key) {
- rss_key = kzalloc(WX_RSS_KEY_SIZE, GFP_KERNEL);
- if (unlikely(!rss_key))
- return -ENOMEM;
-
- netdev_rss_key_fill(rss_key, WX_RSS_KEY_SIZE);
- wx->rss_key = rss_key;
- }
-
- return 0;
-}
-
/**
* ngbe_sw_init - Initialize general software structures
* @wx: board private structure to initialize
@@ -134,8 +112,9 @@ static int ngbe_sw_init(struct wx *wx)
dev_err(&pdev->dev, "Do not support MSI-X\n");
wx->mac.max_msix_vectors = msix_count;
- if (ngbe_init_rss_key(wx))
- return -ENOMEM;
+ wx->ring_feature[RING_F_RSS].limit = min_t(int, NGBE_MAX_RSS_INDICES,
+ num_online_cpus());
+ wx->rss_enabled = true;
/* enable itr by default in dynamic mode */
wx->rx_itr_setting = 1;
@@ -480,6 +459,39 @@ static void ngbe_shutdown(struct pci_dev *pdev)
}
}
+/**
+ * ngbe_setup_tc - routine to configure net_device for multiple traffic
+ * classes.
+ *
+ * @dev: net device to configure
+ * @tc: number of traffic classes to enable
+ */
+int ngbe_setup_tc(struct net_device *dev, u8 tc)
+{
+ struct wx *wx = netdev_priv(dev);
+
+ /* Hardware has to reinitialize queues and interrupts to
+ * match packet buffer alignment. Unfortunately, the
+ * hardware is not flexible enough to do this dynamically.
+ */
+ if (netif_running(dev))
+ ngbe_close(dev);
+
+ wx_clear_interrupt_scheme(wx);
+
+ if (tc)
+ netdev_set_num_tc(dev, tc);
+ else
+ netdev_reset_tc(dev);
+
+ wx_init_interrupt_scheme(wx);
+
+ if (netif_running(dev))
+ ngbe_open(dev);
+
+ return 0;
+}
+
static const struct net_device_ops ngbe_netdev_ops = {
.ndo_open = ngbe_open,
.ndo_stop = ngbe_close,
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
index 0a98080a197a..f4dc4acbedae 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
@@ -105,6 +105,7 @@
#define NGBE_FW_CMD_ST_FAIL 0x70657376
#define NGBE_MAX_FDIR_INDICES 7
+#define NGBE_MAX_RSS_INDICES 8
#define NGBE_MAX_RX_QUEUES (NGBE_MAX_FDIR_INDICES + 1)
#define NGBE_MAX_TX_QUEUES (NGBE_MAX_FDIR_INDICES + 1)
@@ -132,5 +133,6 @@ extern char ngbe_driver_name[];
void ngbe_down(struct wx *wx);
void ngbe_up(struct wx *wx);
+int ngbe_setup_tc(struct net_device *dev, u8 tc);
#endif /* _NGBE_TYPE_H_ */
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c
index fe055b006a4e..36cbc4e799b3 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c
@@ -92,6 +92,19 @@ static int txgbe_set_ringparam(struct net_device *netdev,
return err;
}
+static int txgbe_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ int err;
+
+ err = wx_set_channels(dev, ch);
+ if (err < 0)
+ return err;
+
+ /* use setup TC to update any traffic class queue mapping */
+ return txgbe_setup_tc(dev, netdev_get_num_tc(dev));
+}
+
static const struct ethtool_ops txgbe_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ,
@@ -111,6 +124,8 @@ static const struct ethtool_ops txgbe_ethtool_ops = {
.set_ringparam = txgbe_set_ringparam,
.get_coalesce = wx_get_coalesce,
.set_coalesce = wx_set_coalesce,
+ .get_channels = wx_get_channels,
+ .set_channels = txgbe_set_channels,
};
void txgbe_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 9b1b92fa318f..b2e9feb88aac 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -382,6 +382,10 @@ static int txgbe_sw_init(struct wx *wx)
wx_err(wx, "Do not support MSI-X\n");
wx->mac.max_msix_vectors = msix_count;
+ wx->ring_feature[RING_F_RSS].limit = min_t(int, TXGBE_MAX_RSS_INDICES,
+ num_online_cpus());
+ wx->rss_enabled = true;
+
/* enable itr by default in dynamic mode */
wx->rx_itr_setting = 1;
wx->tx_itr_setting = 1;
@@ -508,6 +512,41 @@ static void txgbe_shutdown(struct pci_dev *pdev)
}
}
+/**
+ * txgbe_setup_tc - routine to configure net_device for multiple traffic
+ * classes.
+ *
+ * @dev: net device to configure
+ * @tc: number of traffic classes to enable
+ */
+int txgbe_setup_tc(struct net_device *dev, u8 tc)
+{
+ struct wx *wx = netdev_priv(dev);
+
+ /* Hardware has to reinitialize queues and interrupts to
+ * match packet buffer alignment. Unfortunately, the
+ * hardware is not flexible enough to do this dynamically.
+ */
+ if (netif_running(dev))
+ txgbe_close(dev);
+ else
+ txgbe_reset(wx);
+
+ wx_clear_interrupt_scheme(wx);
+
+ if (tc)
+ netdev_set_num_tc(dev, tc);
+ else
+ netdev_reset_tc(dev);
+
+ wx_init_interrupt_scheme(wx);
+
+ if (netif_running(dev))
+ txgbe_open(dev);
+
+ return 0;
+}
+
static const struct net_device_ops txgbe_netdev_ops = {
.ndo_open = txgbe_open,
.ndo_stop = txgbe_close,
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
index 13a2f3f53c39..e99f927c8b77 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
@@ -98,6 +98,7 @@
#define TXGBE_MAX_MSIX_VECTORS 64
#define TXGBE_MAX_FDIR_INDICES 63
+#define TXGBE_MAX_RSS_INDICES 63
#define TXGBE_MAX_RX_QUEUES (TXGBE_MAX_FDIR_INDICES + 1)
#define TXGBE_MAX_TX_QUEUES (TXGBE_MAX_FDIR_INDICES + 1)
@@ -131,6 +132,7 @@ extern char txgbe_driver_name[];
void txgbe_down(struct wx *wx);
void txgbe_up(struct wx *wx);
+int txgbe_setup_tc(struct net_device *dev, u8 tc);
static inline struct txgbe *netdev_to_txgbe(struct net_device *netdev)
{
--
2.27.0
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