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Message-ID: <6CC44B3C0FAD9E47+20240804124841.71177-6-mengyuanlou@net-swift.com>
Date: Sun, 4 Aug 2024 20:48:36 +0800
From: Mengyuan Lou <mengyuanlou@...-swift.com>
To: netdev@...r.kernel.org
Cc: Mengyuan Lou <mengyuanlou@...-swift.com>
Subject: [PATCH net-next v5 05/10] net: ngbe: add sriov function support
Add sriov_configure for driver ops.
Add mailbox handler wx_msg_task for ngbe in
the interrupt handler.
Add the notification flow when the vfs exist.
Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
drivers/net/ethernet/wangxun/libwx/wx_sriov.c | 31 ++++++++++
drivers/net/ethernet/wangxun/libwx/wx_sriov.h | 2 +
drivers/net/ethernet/wangxun/libwx/wx_type.h | 2 +
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 58 +++++++++++++++++--
drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c | 10 ++++
drivers/net/ethernet/wangxun/ngbe/ngbe_type.h | 2 +
6 files changed, 101 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_sriov.c b/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
index f97743a292b5..26f9cce454b2 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
@@ -880,3 +880,34 @@ void wx_msg_task(struct wx *wx)
}
}
EXPORT_SYMBOL(wx_msg_task);
+
+void wx_disable_vf_rx_tx(struct wx *wx)
+{
+ wr32(wx, WX_TDM_VFTE_CLR(0), 0);
+ wr32(wx, WX_RDM_VFRE_CLR(0), 0);
+ if (wx->mac.type == wx_mac_sp) {
+ wr32(wx, WX_TDM_VFTE_CLR(1), 0);
+ wr32(wx, WX_RDM_VFRE_CLR(1), 0);
+ }
+}
+EXPORT_SYMBOL(wx_disable_vf_rx_tx);
+
+void wx_ping_all_vfs_with_link_status(struct wx *wx, bool link_up)
+{
+ u32 msgbuf[2] = {0, 0};
+ u16 i;
+
+ if (!wx->num_vfs)
+ return;
+ msgbuf[0] = WX_PF_NOFITY_VF_LINK_STATUS | WX_PF_CONTROL_MSG;
+ if (link_up)
+ msgbuf[1] = (wx->speed << 1) | link_up;
+ if (wx->notify_down)
+ msgbuf[1] |= WX_PF_NOFITY_VF_NET_NOT_RUNNING;
+ for (i = 0 ; i < wx->num_vfs; i++) {
+ if (wx->vfinfo[i].clear_to_send)
+ msgbuf[0] |= WX_VT_MSGTYPE_CTS;
+ wx_write_mbx_pf(wx, msgbuf, 2, i);
+ }
+}
+EXPORT_SYMBOL(wx_ping_all_vfs_with_link_status);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_sriov.h b/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
index 400c37040e7c..fa1b2b0ecf0a 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
@@ -7,5 +7,7 @@
void wx_disable_sriov(struct wx *wx);
int wx_pci_sriov_configure(struct pci_dev *pdev, int num_vfs);
void wx_msg_task(struct wx *wx);
+void wx_disable_vf_rx_tx(struct wx *wx);
+void wx_ping_all_vfs_with_link_status(struct wx *wx, bool link_up);
#endif /* _WX_SRIOV_H_ */
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h
index 43c68c9314cf..a7d2a27316e4 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -90,6 +90,7 @@
/************************* Port Registers ************************************/
/* port cfg Registers */
#define WX_CFG_PORT_CTL 0x14400
+#define WX_CFG_PORT_CTL_PFRSTD BIT(14)
#define WX_CFG_PORT_CTL_DRV_LOAD BIT(3)
#define WX_CFG_PORT_CTL_QINQ BIT(2)
#define WX_CFG_PORT_CTL_D_VLAN BIT(0) /* double vlan*/
@@ -1150,6 +1151,7 @@ struct wx {
enum wx_reset_type reset_type;
/* PHY stuff */
+ bool notify_down;
unsigned int link;
int speed;
int duplex;
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index 53aeae2f884b..a03a4b5f2766 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -14,6 +14,8 @@
#include "../libwx/wx_type.h"
#include "../libwx/wx_hw.h"
#include "../libwx/wx_lib.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_sriov.h"
#include "ngbe_type.h"
#include "ngbe_mdio.h"
#include "ngbe_hw.h"
@@ -128,6 +130,10 @@ static int ngbe_sw_init(struct wx *wx)
wx->tx_work_limit = NGBE_DEFAULT_TX_WORK;
wx->rx_work_limit = NGBE_DEFAULT_RX_WORK;
+ wx->mbx.size = WX_VXMAILBOX_SIZE;
+ wx->setup_tc = ngbe_setup_tc;
+ set_bit(0, &wx->fwd_bitmask);
+
return 0;
}
@@ -197,11 +203,25 @@ static irqreturn_t ngbe_intr(int __always_unused irq, void *data)
static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data)
{
- struct wx *wx = data;
+ struct wx_q_vector *q_vector;
+ struct wx *wx = data;
+ u32 eicr;
- /* re-enable the original interrupt state, no lsc, no queues */
- if (netif_running(wx->netdev))
- ngbe_irq_enable(wx, false);
+ q_vector = wx->q_vector[0];
+
+ eicr = wx_misc_isb(wx, WX_ISB_MISC);
+
+ if (eicr & NGBE_PX_MISC_IC_VF_MBOX)
+ wx_msg_task(wx);
+
+ if (wx->num_vfs == 7) {
+ napi_schedule_irqoff(&q_vector->napi);
+ ngbe_irq_enable(wx, true);
+ } else {
+ /* re-enable the original interrupt state, no lsc, no queues */
+ if (netif_running(wx->netdev))
+ ngbe_irq_enable(wx, false);
+ }
return IRQ_HANDLED;
}
@@ -291,6 +311,22 @@ static void ngbe_disable_device(struct wx *wx)
struct net_device *netdev = wx->netdev;
u32 i;
+ if (wx->num_vfs) {
+ /* Clear EITR Select mapping */
+ wr32(wx, WX_PX_ITRSEL, 0);
+
+ /* Mark all the VFs as inactive */
+ for (i = 0 ; i < wx->num_vfs; i++)
+ wx->vfinfo[i].clear_to_send = 0;
+ wx->notify_down = true;
+ /* ping all the active vfs to let them know we are going down */
+ wx_ping_all_vfs_with_link_status(wx, false);
+ wx->notify_down = false;
+
+ /* Disable all VFTE/VFRE TX/RX */
+ wx_disable_vf_rx_tx(wx);
+ }
+
/* disable all enabled rx queues */
for (i = 0; i < wx->num_rx_queues; i++)
/* this call also flushes the previous write */
@@ -313,10 +349,17 @@ static void ngbe_disable_device(struct wx *wx)
wx_update_stats(wx);
}
+static void ngbe_reset(struct wx *wx)
+{
+ wx_flush_sw_mac_table(wx);
+ wx_mac_set_default_filter(wx, wx->mac.addr);
+}
+
void ngbe_down(struct wx *wx)
{
phylink_stop(wx->phylink);
ngbe_disable_device(wx);
+ ngbe_reset(wx);
wx_clean_all_tx_rings(wx);
wx_clean_all_rx_rings(wx);
}
@@ -339,6 +382,11 @@ void ngbe_up(struct wx *wx)
ngbe_sfp_modules_txrx_powerctl(wx, true);
phylink_start(wx->phylink);
+ /* Set PF Reset Done bit so PF/VF Mail Ops can work */
+ wr32m(wx, WX_CFG_PORT_CTL,
+ WX_CFG_PORT_CTL_PFRSTD, WX_CFG_PORT_CTL_PFRSTD);
+ if (wx->num_vfs)
+ wx_ping_all_vfs_with_link_status(wx, false);
}
/**
@@ -725,6 +773,7 @@ static void ngbe_remove(struct pci_dev *pdev)
struct net_device *netdev;
netdev = wx->netdev;
+ wx_disable_sriov(wx);
unregister_netdev(netdev);
phylink_destroy(wx->phylink);
pci_release_selected_regions(pdev,
@@ -784,6 +833,7 @@ static struct pci_driver ngbe_driver = {
.suspend = ngbe_suspend,
.resume = ngbe_resume,
.shutdown = ngbe_shutdown,
+ .sriov_configure = wx_pci_sriov_configure,
};
module_pci_driver(ngbe_driver);
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
index ec54b18c5fe7..dd01aec87b02 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c
@@ -8,6 +8,7 @@
#include "../libwx/wx_type.h"
#include "../libwx/wx_hw.h"
+#include "../libwx/wx_sriov.h"
#include "ngbe_type.h"
#include "ngbe_mdio.h"
@@ -64,6 +65,11 @@ static void ngbe_mac_config(struct phylink_config *config, unsigned int mode,
static void ngbe_mac_link_down(struct phylink_config *config,
unsigned int mode, phy_interface_t interface)
{
+ struct wx *wx = phylink_to_wx(config);
+
+ wx->speed = 0;
+ /* ping all the active vfs to let them know we are going down */
+ wx_ping_all_vfs_with_link_status(wx, false);
}
static void ngbe_mac_link_up(struct phylink_config *config,
@@ -103,6 +109,10 @@ static void ngbe_mac_link_up(struct phylink_config *config,
wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
+
+ wx->speed = speed;
+ /* ping all the active vfs to let them know we are going up */
+ wx_ping_all_vfs_with_link_status(wx, true);
}
static const struct phylink_mac_ops ngbe_mac_ops = {
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
index f48ed7fc1805..bb70af035c39 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
@@ -72,11 +72,13 @@
#define NGBE_PX_MISC_IEN_DEV_RST BIT(10)
#define NGBE_PX_MISC_IEN_ETH_LK BIT(18)
#define NGBE_PX_MISC_IEN_INT_ERR BIT(20)
+#define NGBE_PX_MISC_IC_VF_MBOX BIT(23)
#define NGBE_PX_MISC_IEN_GPIO BIT(26)
#define NGBE_PX_MISC_IEN_MASK ( \
NGBE_PX_MISC_IEN_DEV_RST | \
NGBE_PX_MISC_IEN_ETH_LK | \
NGBE_PX_MISC_IEN_INT_ERR | \
+ NGBE_PX_MISC_IC_VF_MBOX | \
NGBE_PX_MISC_IEN_GPIO)
#define NGBE_INTR_ALL 0x1FF
--
2.45.2
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