| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <15B2EB86E550526B+20240415110225.75132-5-mengyuanlou@net-swift.com>
Date: Mon, 15 Apr 2024 18:54:31 +0800
From: Mengyuan Lou <mengyuanlou@...-swift.com>
To: netdev@...r.kernel.org
Cc: jiawenwu@...stnetic.com,
duanqiangwen@...-swift.com,
Mengyuan Lou <mengyuanlou@...-swift.com>
Subject: [PATCH net-next v3 4/6] net: libwx: Add msg task func
Implement wx_msg_task which is used to process mailbox
messages sent by vf.
Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
drivers/net/ethernet/wangxun/libwx/wx_hw.c | 12 +-
drivers/net/ethernet/wangxun/libwx/wx_hw.h | 4 +
drivers/net/ethernet/wangxun/libwx/wx_mbx.h | 50 ++
drivers/net/ethernet/wangxun/libwx/wx_sriov.c | 748 ++++++++++++++++++
drivers/net/ethernet/wangxun/libwx/wx_sriov.h | 1 +
drivers/net/ethernet/wangxun/libwx/wx_type.h | 17 +
6 files changed, 828 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
index f3b5705e8eaf..e18908bd68a2 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
@@ -851,7 +851,7 @@ void wx_flush_sw_mac_table(struct wx *wx)
}
EXPORT_SYMBOL(wx_flush_sw_mac_table);
-static int wx_add_mac_filter(struct wx *wx, u8 *addr, u16 pool)
+int wx_add_mac_filter(struct wx *wx, u8 *addr, u16 pool)
{
u32 i;
@@ -881,8 +881,9 @@ static int wx_add_mac_filter(struct wx *wx, u8 *addr, u16 pool)
}
return -ENOMEM;
}
+EXPORT_SYMBOL(wx_add_mac_filter);
-static int wx_del_mac_filter(struct wx *wx, u8 *addr, u16 pool)
+int wx_del_mac_filter(struct wx *wx, u8 *addr, u16 pool)
{
u32 i;
@@ -905,6 +906,7 @@ static int wx_del_mac_filter(struct wx *wx, u8 *addr, u16 pool)
}
return -ENOMEM;
}
+EXPORT_SYMBOL(wx_del_mac_filter);
static int wx_available_rars(struct wx *wx)
{
@@ -1309,7 +1311,7 @@ static void wx_set_ethertype_anti_spoofing(struct wx *wx, bool enable, int vf)
wr32(wx, WX_TDM_ETYPE_AS(reg_offset), pfvfspoof);
}
-static int wx_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
+int wx_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
{
u32 index = vf / 32, vf_bit = vf % 32;
struct wx *wx = netdev_priv(netdev);
@@ -1328,6 +1330,7 @@ static int wx_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
return 0;
}
+EXPORT_SYMBOL(wx_set_vf_spoofchk);
static void wx_configure_virtualization(struct wx *wx)
{
@@ -2352,7 +2355,7 @@ static int wx_set_vlvf(struct wx *wx, u32 vlan, u32 vind, bool vlan_on,
*
* Turn on/off specified VLAN in the VLAN filter table.
**/
-static int wx_set_vfta(struct wx *wx, u32 vlan, u32 vind, bool vlan_on)
+int wx_set_vfta(struct wx *wx, u32 vlan, u32 vind, bool vlan_on)
{
u32 bitindex, vfta, targetbit;
bool vfta_changed = false;
@@ -2398,6 +2401,7 @@ static int wx_set_vfta(struct wx *wx, u32 vlan, u32 vind, bool vlan_on)
return 0;
}
+EXPORT_SYMBOL(wx_set_vfta);
/**
* wx_clear_vfta - Clear VLAN filter table
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.h b/drivers/net/ethernet/wangxun/libwx/wx_hw.h
index 9e219fa717a2..ea2b7c932274 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.h
@@ -25,9 +25,12 @@ void wx_init_eeprom_params(struct wx *wx);
void wx_get_mac_addr(struct wx *wx, u8 *mac_addr);
void wx_init_rx_addrs(struct wx *wx);
void wx_mac_set_default_filter(struct wx *wx, u8 *addr);
+int wx_add_mac_filter(struct wx *wx, u8 *addr, u16 pool);
+int wx_del_mac_filter(struct wx *wx, u8 *addr, u16 pool);
void wx_flush_sw_mac_table(struct wx *wx);
int wx_set_mac(struct net_device *netdev, void *p);
void wx_disable_rx(struct wx *wx);
+int wx_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
void wx_set_rx_mode(struct net_device *netdev);
int wx_change_mtu(struct net_device *netdev, int new_mtu);
void wx_disable_rx_queue(struct wx *wx, struct wx_ring *ring);
@@ -39,6 +42,7 @@ int wx_stop_adapter(struct wx *wx);
void wx_reset_misc(struct wx *wx);
int wx_get_pcie_msix_counts(struct wx *wx, u16 *msix_count, u16 max_msix_count);
int wx_sw_init(struct wx *wx);
+int wx_set_vfta(struct wx *wx, u32 vlan, u32 vind, bool vlan_on);
int wx_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid);
int wx_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid);
int wx_fc_enable(struct wx *wx, bool tx_pause, bool rx_pause);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_mbx.h b/drivers/net/ethernet/wangxun/libwx/wx_mbx.h
index 3c70654a8b14..00a9dda8365c 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_mbx.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_mbx.h
@@ -21,10 +21,60 @@
#define WX_MBVFICR_VFREQ_MASK GENMASK(15, 0)
#define WX_MBVFICR_VFACK_MASK GENMASK(31, 16)
+#define WX_VT_MSGTYPE_ACK BIT(31)
+#define WX_VT_MSGTYPE_NACK BIT(30)
+#define WX_VT_MSGTYPE_CTS BIT(29)
+#define WX_VT_MSGINFO_SHIFT 16
#define WX_VT_MSGINFO_MASK GENMASK(23, 16)
+enum wx_pfvf_api_rev {
+ wx_mbox_api_null,
+ wx_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */
+ wx_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */
+ wx_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */
+ wx_mbox_api_13, /* API version 1.3, linux/freebsd VF driver */
+ wx_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */
+ wx_mbox_api_unknown, /* indicates that API version is not known */
+};
+
+/* mailbox API, legacy requests */
+#define WX_VF_RESET 0x01 /* VF requests reset */
+#define WX_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */
+#define WX_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */
+#define WX_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */
+
+/* mailbox API, version 1.0 VF requests */
+#define WX_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */
+#define WX_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */
+#define WX_VF_API_NEGOTIATE 0x08 /* negotiate API version */
+
+/* mailbox API, version 1.1 VF requests */
+#define WX_VF_GET_QUEUES 0x09 /* get queue configuration */
+
+/* mailbox API, version 1.2 VF requests */
+#define WX_VF_GET_RETA 0x0a /* VF request for RETA */
+#define WX_VF_GET_RSS_KEY 0x0b /* get RSS key */
+#define WX_VF_UPDATE_XCAST_MODE 0x0c
+#define WX_VF_GET_LINK_STATE 0x10 /* get vf link state */
+#define WX_VF_GET_FW_VERSION 0x11 /* get fw version */
+#define WX_VF_BACKUP 0x8001 /* VF requests backup */
+
+#define WX_PF_CONTROL_MSG BIT(8) /* PF control message */
+#define WX_PF_NOFITY_VF_LINK_STATUS 0x1
+#define WX_PF_NOFITY_VF_NET_NOT_RUNNING BIT(31)
+
+#define WX_VF_TX_QUEUES 1 /* number of Tx queues supported */
+#define WX_VF_RX_QUEUES 2 /* number of Rx queues supported */
+#define WX_VF_TRANS_VLAN 3 /* Indication of port vlan */
+#define WX_VF_DEF_QUEUE 4 /* Default queue offset */
+
+#define WX_VF_PERMADDR_MSG_LEN 4
+
enum wxvf_xcast_modes {
WXVF_XCAST_MODE_NONE = 0,
+ WXVF_XCAST_MODE_MULTI,
+ WXVF_XCAST_MODE_ALLMULTI,
+ WXVF_XCAST_MODE_PROMISC,
};
int wx_write_mbx_pf(struct wx *wx, u32 *msg, u16 size, u16 vf);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_sriov.c b/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
index 032b75f23460..22b2ee13f038 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_sriov.c
@@ -5,6 +5,7 @@
#include <linux/pci.h>
#include "wx_type.h"
+#include "wx_hw.h"
#include "wx_mbx.h"
#include "wx_sriov.h"
@@ -219,3 +220,750 @@ int wx_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
return num_vfs;
}
EXPORT_SYMBOL(wx_pci_sriov_configure);
+
+static int wx_set_vf_mac(struct wx *wx, u16 vf, unsigned char *mac_addr)
+{
+ int ret = 0;
+
+ wx_del_mac_filter(wx, wx->vfinfo[vf].vf_mac_addr, vf);
+ ret = wx_add_mac_filter(wx, mac_addr, vf);
+ if (ret >= 0)
+ memcpy(wx->vfinfo[vf].vf_mac_addr, mac_addr, ETH_ALEN);
+ else
+ memset(wx->vfinfo[vf].vf_mac_addr, 0, ETH_ALEN);
+
+ return ret;
+}
+
+static void wx_set_vmolr(struct wx *wx, u16 vf, bool aupe)
+{
+ u32 vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+
+ vmolr |= WX_PSR_VM_L2CTL_BAM;
+ if (aupe)
+ vmolr |= WX_PSR_VM_L2CTL_AUPE;
+ else
+ vmolr &= ~WX_PSR_VM_L2CTL_AUPE;
+ wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+}
+
+static void wx_set_vmvir(struct wx *wx, u16 vid, u16 qos, u16 vf)
+{
+ u32 vmvir = vid | (qos << VLAN_PRIO_SHIFT) |
+ WX_TDM_VLAN_INS_VLANA_DEFAULT;
+
+ wr32(wx, WX_TDM_VLAN_INS(vf), vmvir);
+}
+
+static int wx_set_vf_vlan(struct wx *wx, int add, int vid, u16 vf)
+{
+ /* VLAN 0 is a special case, don't allow it to be removed */
+ if (!vid && !add)
+ return 0;
+
+ return wx_set_vfta(wx, vid, vf, (bool)add);
+}
+
+/**
+ * wx_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing
+ * @wx: pointer to hardware structure
+ * @enable: enable or disable switch for VLAN anti-spoofing
+ * @vf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing
+ *
+ **/
+static void wx_set_vlan_anti_spoofing(struct wx *wx, bool enable, int vf)
+{
+ u32 index = vf / 32, vf_bit = vf % 32;
+ u32 pfvfspoof;
+
+ pfvfspoof = rd32(wx, WX_TDM_VLAN_AS(index));
+ if (enable)
+ pfvfspoof |= BIT(vf_bit);
+ else
+ pfvfspoof &= ~BIT(vf_bit);
+ wr32(wx, WX_TDM_VLAN_AS(index), pfvfspoof);
+}
+
+static inline void wx_write_qde(struct wx *wx, u32 vf, u32 qde)
+{
+ struct wx_ring_feature *vmdq = &wx->ring_feature[RING_F_VMDQ];
+ u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
+ u32 reg = 0, n = vf * q_per_pool / 32;
+ u32 i = vf * q_per_pool;
+
+ reg = rd32(wx, WX_RDM_PF_QDE(n));
+ for (i = (vf * q_per_pool - n * 32);
+ i < ((vf + 1) * q_per_pool - n * 32);
+ i++) {
+ if (qde == 1)
+ reg |= qde << i;
+ else
+ reg &= qde << i;
+ }
+
+ wr32(wx, WX_RDM_PF_QDE(n), reg);
+}
+
+static void wx_clear_vmvir(struct wx *wx, u32 vf)
+{
+ wr32(wx, WX_TDM_VLAN_INS(vf), 0);
+}
+
+static inline void wx_ping_vf(struct wx *wx, int vf)
+{
+ u32 ping;
+
+ ping = WX_PF_CONTROL_MSG;
+ if (wx->vfinfo[vf].clear_to_send)
+ ping |= WX_VT_MSGTYPE_CTS;
+ wx_write_mbx_pf(wx, &ping, 1, vf);
+}
+
+/**
+ * wx_set_vf_rx_tx - Set VF rx tx
+ * @wx: Pointer to wx struct
+ * @vf: VF identifier
+ *
+ * Set or reset correct transmit and receive for vf
+ **/
+static void wx_set_vf_rx_tx(struct wx *wx, int vf)
+{
+ u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
+ u32 index, vf_bit;
+
+ vf_bit = vf % 32;
+ index = vf / 32;
+
+ reg_cur_tx = rd32(wx, WX_TDM_VF_TE(index));
+ reg_cur_rx = rd32(wx, WX_RDM_VF_RE(index));
+
+ if (wx->vfinfo[vf].link_enable) {
+ reg_req_tx = reg_cur_tx | BIT(vf_bit);
+ reg_req_rx = reg_cur_rx | BIT(vf_bit);
+ /* Enable particular VF */
+ if (reg_cur_tx != reg_req_tx)
+ wr32(wx, WX_TDM_VF_TE(index), reg_req_tx);
+ if (reg_cur_rx != reg_req_rx)
+ wr32(wx, WX_RDM_VF_RE(index), reg_req_rx);
+ } else {
+ reg_req_tx = BIT(vf_bit);
+ reg_req_rx = BIT(vf_bit);
+ /* Disable particular VF */
+ if (reg_cur_tx & reg_req_tx)
+ wr32(wx, WX_TDM_VFTE_CLR(index), reg_req_tx);
+ if (reg_cur_rx & reg_req_rx)
+ wr32(wx, WX_RDM_VFRE_CLR(index), reg_req_rx);
+ }
+}
+
+static int wx_get_vf_queues(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ struct wx_ring_feature *vmdq = &wx->ring_feature[RING_F_VMDQ];
+ unsigned int default_tc = 0;
+
+ /* verify the PF is supporting the correct APIs */
+ switch (wx->vfinfo[vf].vf_api) {
+ case wx_mbox_api_11 ... wx_mbox_api_20:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* only allow 1 Tx queue for bandwidth limiting */
+ msgbuf[WX_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
+ msgbuf[WX_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
+
+ if (wx->vfinfo[vf].pf_vlan || wx->vfinfo[vf].pf_qos)
+ msgbuf[WX_VF_TRANS_VLAN] = 1;
+ else
+ msgbuf[WX_VF_TRANS_VLAN] = 0;
+
+ /* notify VF of default queue */
+ msgbuf[WX_VF_DEF_QUEUE] = default_tc;
+
+ return 0;
+}
+
+static inline void wx_vf_reset_event(struct wx *wx, u16 vf)
+{
+ struct vf_data_storage *vfinfo = &wx->vfinfo[vf];
+ u8 num_tcs = netdev_get_num_tc(wx->netdev);
+
+ /* add PF assigned VLAN or VLAN 0 */
+ wx_set_vf_vlan(wx, true, vfinfo->pf_vlan, vf);
+
+ /* reset offloads to defaults */
+ wx_set_vmolr(wx, vf, !vfinfo->pf_vlan);
+
+ /* set outgoing tags for VFs */
+ if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
+ wx_clear_vmvir(wx, vf);
+ } else {
+ if (vfinfo->pf_qos || !num_tcs)
+ wx_set_vmvir(wx, vfinfo->pf_vlan,
+ vfinfo->pf_qos, vf);
+ else
+ wx_set_vmvir(wx, vfinfo->pf_vlan,
+ wx->default_up, vf);
+ }
+
+ /* reset multicast table array for vf */
+ wx->vfinfo[vf].num_vf_mc_hashes = 0;
+
+ /* Flush and reset the mta with the new values */
+ wx_set_rx_mode(wx->netdev);
+
+ wx_del_mac_filter(wx, wx->vfinfo[vf].vf_mac_addr, vf);
+
+ /* reset VF api back to unknown */
+ wx->vfinfo[vf].vf_api = wx_mbox_api_10;
+}
+
+static void wx_vf_reset_msg(struct wx *wx, u16 vf)
+{
+ unsigned char *vf_mac = wx->vfinfo[vf].vf_mac_addr;
+ struct net_device *dev = wx->netdev;
+ u32 msgbuf[5] = {0, 0, 0, 0, 0};
+ u8 *addr = (u8 *)(&msgbuf[1]);
+ u32 reg = 0, index, vf_bit;
+ int pf_max_frame;
+
+ /* reset the filters for the device */
+ wx_vf_reset_event(wx, vf);
+
+ /* set vf mac address */
+ if (!is_zero_ether_addr(vf_mac))
+ wx_set_vf_mac(wx, vf, vf_mac);
+
+ vf_bit = vf % 32;
+ index = vf / 32;
+
+ /* force drop enable for all VF Rx queues */
+ wx_write_qde(wx, vf, 1);
+
+ /* set transmit and receive for vf */
+ wx_set_vf_rx_tx(wx, vf);
+
+ pf_max_frame = dev->mtu + ETH_HLEN;
+
+ if (pf_max_frame > ETH_FRAME_LEN)
+ reg = BIT(vf_bit);
+ wr32(wx, WX_RDM_VFRE_CLR(index), reg);
+
+ /* enable VF mailbox for further messages */
+ wx->vfinfo[vf].clear_to_send = true;
+
+ /* reply to reset with ack and vf mac address */
+ msgbuf[0] = WX_VF_RESET;
+ if (!is_zero_ether_addr(vf_mac)) {
+ msgbuf[0] |= WX_VT_MSGTYPE_ACK;
+ memcpy(addr, vf_mac, ETH_ALEN);
+ } else {
+ msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+ wx_err(wx, "VF %d has no MAC address assigned", vf);
+ }
+
+ /* Piggyback the multicast filter type so VF can compute the
+ * correct vectors
+ */
+ msgbuf[3] = wx->mac.mc_filter_type;
+ wx_write_mbx_pf(wx, msgbuf, WX_VF_PERMADDR_MSG_LEN, vf);
+}
+
+static int wx_set_vf_mac_addr(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+ u8 *new_mac = ((u8 *)(&msgbuf[1]));
+
+ if (!is_valid_ether_addr(new_mac)) {
+ wx_err(wx, "VF %d attempted to set invalid mac\n", vf);
+ return -EINVAL;
+ }
+
+ if (wx->vfinfo[vf].pf_set_mac &&
+ memcmp(wx->vfinfo[vf].vf_mac_addr, new_mac, ETH_ALEN)) {
+ wx_err(wx,
+ "VF %d attempted to set a MAC address but it already had a MAC address.",
+ vf);
+ return -EBUSY;
+ }
+ return wx_set_vf_mac(wx, vf, new_mac) < 0;
+}
+
+static int wx_set_vf_multicasts(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ u16 entries = (msgbuf[0] & WX_VT_MSGINFO_MASK) >> WX_VT_MSGINFO_SHIFT;
+ struct vf_data_storage *vfinfo = &wx->vfinfo[vf];
+ u32 vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+ u32 vector_bit, vector_reg, mta_reg, i;
+ u16 *hash_list = (u16 *)&msgbuf[1];
+
+ /* only so many hash values supported */
+ entries = min_t(u16, entries, WX_MAX_VF_MC_ENTRIES);
+ /* salt away the number of multi cast addresses assigned
+ * to this VF for later use to restore when the PF multi cast
+ * list changes
+ */
+ vfinfo->num_vf_mc_hashes = entries;
+
+ /* VFs are limited to using the MTA hash table for their multicast
+ * addresses
+ */
+ for (i = 0; i < entries; i++)
+ vfinfo->vf_mc_hashes[i] = hash_list[i];
+
+ for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
+ vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
+ vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
+ /* errata 5: maintain a copy of the register table conf */
+ mta_reg = wx->mac.mta_shadow[vector_reg];
+ mta_reg |= (1 << vector_bit);
+ wx->mac.mta_shadow[vector_reg] = mta_reg;
+ wr32(wx, WX_PSR_MC_TBL(vector_reg), mta_reg);
+ }
+ vmolr |= WX_PSR_VM_L2CTL_ROMPE;
+ wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+
+ return 0;
+}
+
+static int wx_set_vf_lpe(struct wx *wx, u32 max_frame, u32 vf)
+{
+ struct net_device *netdev = wx->netdev;
+ u32 index, vf_bit, vfre;
+ u32 max_frs, reg_val;
+ int pf_max_frame;
+ int err = 0;
+
+ pf_max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+ switch (wx->vfinfo[vf].vf_api) {
+ case wx_mbox_api_11 ... wx_mbox_api_13:
+ /* Version 1.1 supports jumbo frames on VFs if PF has
+ * jumbo frames enabled which means legacy VFs are
+ * disabled
+ */
+ if (pf_max_frame > ETH_FRAME_LEN)
+ break;
+ fallthrough;
+ default:
+ /* If the PF or VF are running w/ jumbo frames enabled
+ * we need to shut down the VF Rx path as we cannot
+ * support jumbo frames on legacy VFs
+ */
+ if (pf_max_frame > ETH_FRAME_LEN ||
+ (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)))
+ err = -EINVAL;
+ break;
+ }
+
+ /* determine VF receive enable location */
+ vf_bit = vf % 32;
+ index = vf / 32;
+
+ /* enable or disable receive depending on error */
+ vfre = rd32(wx, WX_RDM_VF_RE(index));
+ if (err)
+ vfre &= ~BIT(vf_bit);
+ else
+ vfre |= BIT(vf_bit);
+ wr32(wx, WX_RDM_VF_RE(index), vfre);
+
+ if (err) {
+ wx_err(wx, "VF max_frame %d out of range\n", max_frame);
+ return err;
+ }
+ /* pull current max frame size from hardware */
+ max_frs = DIV_ROUND_UP(max_frame, 1024);
+ reg_val = rd32(wx, WX_MAC_WDG_TIMEOUT) & WX_MAC_WDG_TIMEOUT_WTO_MASK;
+ if (max_frs > (reg_val + WX_MAC_WDG_TIMEOUT_WTO_DELTA))
+ wr32(wx, WX_MAC_WDG_TIMEOUT, max_frs - WX_MAC_WDG_TIMEOUT_WTO_DELTA);
+
+ return 0;
+}
+
+static int wx_find_vlvf_entry(struct wx *wx, u32 vlan)
+{
+ int regindex;
+ u32 vlvf;
+
+ /* short cut the special case */
+ if (vlan == 0)
+ return 0;
+
+ /* Search for the vlan id in the VLVF entries */
+ for (regindex = 1; regindex < WX_PSR_VLAN_SWC_ENTRIES; regindex++) {
+ wr32(wx, WX_PSR_VLAN_SWC_IDX, regindex);
+ vlvf = rd32(wx, WX_PSR_VLAN_SWC);
+ if ((vlvf & VLAN_VID_MASK) == vlan)
+ break;
+ }
+
+ /* Return a negative value if not found */
+ if (regindex >= WX_PSR_VLAN_SWC_ENTRIES)
+ regindex = -EINVAL;
+
+ return regindex;
+}
+
+static int wx_set_vf_macvlan(struct wx *wx,
+ u16 vf, int index, unsigned char *mac_addr)
+{
+ struct vf_macvlans *entry;
+ struct list_head *pos;
+ int retval = 0;
+
+ if (index <= 1) {
+ list_for_each(pos, &wx->vf_mvs.l) {
+ entry = list_entry(pos, struct vf_macvlans, l);
+ if (entry->vf == vf) {
+ entry->vf = -1;
+ entry->free = true;
+ entry->is_macvlan = false;
+ wx_del_mac_filter(wx, entry->vf_macvlan, vf);
+ }
+ }
+ }
+
+ /* If index was zero then we were asked to clear the uc list
+ * for the VF. We're done.
+ */
+ if (!index)
+ return 0;
+
+ entry = NULL;
+
+ list_for_each(pos, &wx->vf_mvs.l) {
+ entry = list_entry(pos, struct vf_macvlans, l);
+ if (entry->free)
+ break;
+ }
+
+ /* If we traversed the entire list and didn't find a free entry
+ * then we're out of space on the RAR table. Also entry may
+ * be NULL because the original memory allocation for the list
+ * failed, which is not fatal but does mean we can't support
+ * VF requests for MACVLAN because we couldn't allocate
+ * memory for the list manangbeent required.
+ */
+ if (!entry || !entry->free)
+ return -ENOSPC;
+
+ retval = wx_add_mac_filter(wx, mac_addr, vf);
+ if (retval >= 0) {
+ entry->free = false;
+ entry->is_macvlan = true;
+ entry->vf = vf;
+ memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
+ }
+
+ return retval;
+}
+
+static int wx_set_vf_vlan_msg(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+ int add = (msgbuf[0] & WX_VT_MSGINFO_MASK) >> WX_VT_MSGINFO_SHIFT;
+ int vid = (msgbuf[1] & WX_PSR_VLAN_SWC_VLANID_MASK);
+ int err;
+
+ if (add)
+ wx->vfinfo[vf].vlan_count++;
+ else if (wx->vfinfo[vf].vlan_count)
+ wx->vfinfo[vf].vlan_count--;
+
+ /* in case of promiscuous mode any VLAN filter set for a VF must
+ * also have the PF pool added to it.
+ */
+ if (add && wx->netdev->flags & IFF_PROMISC)
+ err = wx_set_vf_vlan(wx, add, vid, VMDQ_P(0));
+
+ err = wx_set_vf_vlan(wx, add, vid, vf);
+ if (!err && wx->vfinfo[vf].spoofchk_enabled)
+ wx_set_vlan_anti_spoofing(wx, true, vf);
+
+ /* Go through all the checks to see if the VLAN filter should
+ * be wiped completely.
+ */
+ if (!add && wx->netdev->flags & IFF_PROMISC) {
+ u32 bits = 0, vlvf;
+ int reg_ndx;
+
+ reg_ndx = wx_find_vlvf_entry(wx, vid);
+ if (reg_ndx < 0)
+ goto out;
+ wr32(wx, WX_PSR_VLAN_SWC_IDX, reg_ndx);
+ vlvf = rd32(wx, WX_PSR_VLAN_SWC);
+ /* See if any other pools are set for this VLAN filter
+ * entry other than the PF.
+ */
+ if (VMDQ_P(0) < 32) {
+ bits = rd32(wx, WX_PSR_VLAN_SWC_VM_L);
+ bits &= ~BIT(VMDQ_P(0));
+ if (wx->mac.type == wx_mac_sp)
+ bits |= rd32(wx, WX_PSR_VLAN_SWC_VM_H);
+ } else {
+ if (wx->mac.type == wx_mac_sp)
+ bits = rd32(wx, WX_PSR_VLAN_SWC_VM_H);
+ bits &= ~BIT(VMDQ_P(0) % 32);
+ bits |= rd32(wx, WX_PSR_VLAN_SWC_VM_L);
+ }
+ /* If the filter was removed then ensure PF pool bit
+ * is cleared if the PF only added itself to the pool
+ * because the PF is in promiscuous mode.
+ */
+ if ((vlvf & VLAN_VID_MASK) == vid && !bits)
+ wx_set_vf_vlan(wx, add, vid, VMDQ_P(0));
+ }
+
+out:
+ return err;
+}
+
+static int wx_set_vf_macvlan_msg(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+ int index = (msgbuf[0] & WX_VT_MSGINFO_MASK) >>
+ WX_VT_MSGINFO_SHIFT;
+ u8 *new_mac = ((u8 *)(&msgbuf[1]));
+ int err;
+
+ if (wx->vfinfo[vf].pf_set_mac && index > 0) {
+ wx_err(wx, "VF %d requested MACVLAN filter but is administratively denied\n", vf);
+ return -EINVAL;
+ }
+
+ /* An non-zero index indicates the VF is setting a filter */
+ if (index) {
+ if (!is_valid_ether_addr(new_mac)) {
+ wx_err(wx, "VF %d attempted to set invalid mac\n", vf);
+ return -EINVAL;
+ }
+ /* If the VF is allowed to set MAC filters then turn off
+ * anti-spoofing to avoid false positives.
+ */
+ if (wx->vfinfo[vf].spoofchk_enabled)
+ wx_set_vf_spoofchk(wx->netdev, vf, false);
+ }
+
+ err = wx_set_vf_macvlan(wx, vf, index, new_mac);
+ if (err == -ENOSPC)
+ wx_err(wx,
+ "VF %d has requested a MACVLAN filter but there is no space for it\n",
+ vf);
+
+ return err < 0;
+}
+
+static int wx_negotiate_vf_api(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ int api = msgbuf[1];
+
+ switch (api) {
+ case wx_mbox_api_10 ... wx_mbox_api_13:
+ wx->vfinfo[vf].vf_api = api;
+ return 0;
+ default:
+ wx_err(wx, "VF %d requested invalid api version %u\n", vf, api);
+ return -EINVAL;
+ }
+}
+
+static int wx_get_vf_link_state(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ /* verify the PF is supporting the correct API */
+ switch (wx->vfinfo[vf].vf_api) {
+ case wx_mbox_api_12 ... wx_mbox_api_13:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ msgbuf[1] = wx->vfinfo[vf].link_enable;
+
+ return 0;
+}
+
+static int wx_get_fw_version(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ unsigned long fw_version = 0ULL;
+ int ret = 0;
+
+ /* verify the PF is supporting the correct API */
+ switch (wx->vfinfo[vf].vf_api) {
+ case wx_mbox_api_12 ... wx_mbox_api_13:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ ret = kstrtoul(wx->eeprom_id, 16, &fw_version);
+ if (ret)
+ return -EOPNOTSUPP;
+ msgbuf[1] = fw_version;
+
+ return 0;
+}
+
+static int wx_update_vf_xcast_mode(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+ int xcast_mode = msgbuf[1];
+ u32 vmolr, disable, enable;
+
+ /* verify the PF is supporting the correct APIs */
+ switch (wx->vfinfo[vf].vf_api) {
+ case wx_mbox_api_12:
+ /* promisc introduced in 1.3 version */
+ if (xcast_mode == WXVF_XCAST_MODE_PROMISC)
+ return -EOPNOTSUPP;
+ fallthrough;
+ case wx_mbox_api_13:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ if (wx->vfinfo[vf].xcast_mode == xcast_mode)
+ goto out;
+
+ switch (xcast_mode) {
+ case WXVF_XCAST_MODE_NONE:
+ disable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE |
+ WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE | WX_PSR_VM_L2CTL_VPE;
+ enable = 0;
+ break;
+ case WXVF_XCAST_MODE_MULTI:
+ disable = WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE | WX_PSR_VM_L2CTL_VPE;
+ enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE;
+ break;
+ case WXVF_XCAST_MODE_ALLMULTI:
+ disable = WX_PSR_VM_L2CTL_UPE | WX_PSR_VM_L2CTL_VPE;
+ enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE | WX_PSR_VM_L2CTL_MPE;
+ break;
+ case WXVF_XCAST_MODE_PROMISC:
+ disable = 0;
+ enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE |
+ WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE | WX_PSR_VM_L2CTL_VPE;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+ vmolr &= ~disable;
+ vmolr |= enable;
+ wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+
+ wx->vfinfo[vf].xcast_mode = xcast_mode;
+out:
+ msgbuf[1] = xcast_mode;
+
+ return 0;
+}
+
+static void wx_rcv_msg_from_vf(struct wx *wx, u16 vf)
+{
+ u16 mbx_size = WX_VXMAILBOX_SIZE;
+ u32 msgbuf[WX_VXMAILBOX_SIZE];
+ int retval;
+
+ retval = wx_read_mbx_pf(wx, msgbuf, mbx_size, vf);
+ if (retval) {
+ wx_err(wx, "Error receiving message from VF\n");
+ return;
+ }
+
+ /* this is a message we already processed, do nothing */
+ if (msgbuf[0] & (WX_VT_MSGTYPE_ACK | WX_VT_MSGTYPE_NACK))
+ return;
+
+ if (msgbuf[0] == WX_VF_RESET) {
+ wx_vf_reset_msg(wx, vf);
+ return;
+ }
+
+ /* until the vf completes a virtual function reset it should not be
+ * allowed to start any configuration.
+ */
+ if (!wx->vfinfo[vf].clear_to_send) {
+ msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+ wx_write_mbx_pf(wx, msgbuf, 1, vf);
+ return;
+ }
+
+ switch ((msgbuf[0] & U16_MAX)) {
+ case WX_VF_SET_MAC_ADDR:
+ retval = wx_set_vf_mac_addr(wx, msgbuf, vf);
+ break;
+ case WX_VF_SET_MULTICAST:
+ retval = wx_set_vf_multicasts(wx, msgbuf, vf);
+ break;
+ case WX_VF_SET_VLAN:
+ retval = wx_set_vf_vlan_msg(wx, msgbuf, vf);
+ break;
+ case WX_VF_SET_LPE:
+ if (msgbuf[1] > WX_MAX_JUMBO_FRAME_SIZE) {
+ wx_err(wx, "VF max_frame %d out of range\n", msgbuf[1]);
+ return;
+ }
+ retval = wx_set_vf_lpe(wx, msgbuf[1], vf);
+ break;
+ case WX_VF_SET_MACVLAN:
+ retval = wx_set_vf_macvlan_msg(wx, msgbuf, vf);
+ break;
+ case WX_VF_API_NEGOTIATE:
+ retval = wx_negotiate_vf_api(wx, msgbuf, vf);
+ break;
+ case WX_VF_GET_QUEUES:
+ retval = wx_get_vf_queues(wx, msgbuf, vf);
+ break;
+ case WX_VF_GET_LINK_STATE:
+ retval = wx_get_vf_link_state(wx, msgbuf, vf);
+ break;
+ case WX_VF_GET_FW_VERSION:
+ retval = wx_get_fw_version(wx, msgbuf, vf);
+ break;
+ case WX_VF_UPDATE_XCAST_MODE:
+ retval = wx_update_vf_xcast_mode(wx, msgbuf, vf);
+ break;
+ case WX_VF_BACKUP:
+ break;
+ default:
+ wx_err(wx, "Unhandled Msg %8.8x\n", msgbuf[0]);
+ break;
+ }
+
+ /* notify the VF of the results of what it sent us */
+ if (retval)
+ msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+ else
+ msgbuf[0] |= WX_VT_MSGTYPE_ACK;
+
+ msgbuf[0] |= WX_VT_MSGTYPE_CTS;
+
+ wx_write_mbx_pf(wx, msgbuf, mbx_size, vf);
+}
+
+static void wx_rcv_ack_from_vf(struct wx *wx, u16 vf)
+{
+ u32 msg = WX_VT_MSGTYPE_NACK;
+
+ /* if device isn't clear to send it shouldn't be reading either */
+ if (!wx->vfinfo[vf].clear_to_send)
+ wx_write_mbx_pf(wx, &msg, 1, vf);
+}
+
+void wx_msg_task(struct wx *wx)
+{
+ u16 vf;
+
+ for (vf = 0; vf < wx->num_vfs; vf++) {
+ /* process any reset requests */
+ if (!wx_check_for_rst_pf(wx, vf))
+ wx_vf_reset_event(wx, vf);
+
+ /* process any messages pending */
+ if (!wx_check_for_msg_pf(wx, vf))
+ wx_rcv_msg_from_vf(wx, vf);
+
+ /* process any acks */
+ if (!wx_check_for_ack_pf(wx, vf))
+ wx_rcv_ack_from_vf(wx, vf);
+ }
+}
+EXPORT_SYMBOL(wx_msg_task);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_sriov.h b/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
index 17b547ae8862..f311774a2a18 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_sriov.h
@@ -6,5 +6,6 @@
int 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);
#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 7d39429a147b..28dd879060fd 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -77,6 +77,8 @@
/*********************** Receive DMA registers **************************/
#define WX_RDM_VF_RE(_i) (0x12004 + ((_i) * 4))
+#define WX_RDM_PF_QDE(_i) (0x12080 + ((_i) * 4))
+#define WX_RDM_VFRE_CLR(_i) (0x120A0 + ((_i) * 4))
#define WX_RDM_DRP_PKT 0x12500
#define WX_RDM_PKT_CNT 0x12504
#define WX_RDM_BYTE_CNT_LSB 0x12508
@@ -120,6 +122,7 @@
#define WX_TDM_VF_TE(_i) (0x18004 + ((_i) * 4))
#define WX_TDM_MAC_AS(_i) (0x18060 + ((_i) * 4))
#define WX_TDM_VLAN_AS(_i) (0x18070 + ((_i) * 4))
+#define WX_TDM_VFTE_CLR(_i) (0x180A0 + ((_i) * 4))
/* TDM CTL BIT */
#define WX_TDM_CTL_TE BIT(0) /* Transmit Enable */
@@ -200,6 +203,7 @@
#define WX_PSR_VM_L2CTL(_i) (0x15600 + ((_i) * 4))
#define WX_PSR_VM_L2CTL_UPE BIT(4) /* unicast promiscuous */
#define WX_PSR_VM_L2CTL_VACC BIT(6) /* accept nomatched vlan */
+#define WX_PSR_VM_L2CTL_VPE BIT(7) /* vlan promiscuous mode */
#define WX_PSR_VM_L2CTL_AUPE BIT(8) /* accept untagged packets */
#define WX_PSR_VM_L2CTL_ROMPE BIT(9) /* accept packets in MTA tbl */
#define WX_PSR_VM_L2CTL_ROPE BIT(10) /* accept packets in UC tbl */
@@ -243,6 +247,7 @@
/* VLAN pool filtering masks */
#define WX_PSR_VLAN_SWC_VIEN BIT(31) /* filter is valid */
#define WX_PSR_VLAN_SWC_ENTRIES 64
+#define WX_PSR_VLAN_SWC_VLANID_MASK GENMASK(11, 0)
/********************************* RSEC **************************************/
/* general rsec */
@@ -256,6 +261,9 @@
/*********************** Transmit DMA registers **************************/
/* transmit global control */
#define WX_TDM_ETYPE_AS(_i) (0x18058 + ((_i) * 4))
+#define WX_TDM_VLAN_INS(_i) (0x18100 + ((_i) * 4))
+/* Per VF Port VLAN insertion rules */
+#define WX_TDM_VLAN_INS_VLANA_DEFAULT BIT(30) /* Always use default VLAN*/
/****************************** TDB ******************************************/
#define WX_TDB_PB_SZ(_i) (0x1CC00 + ((_i) * 4))
@@ -296,6 +304,9 @@
#define WX_MAC_WDG_TIMEOUT 0x1100C
#define WX_MAC_RX_FLOW_CTRL 0x11090
#define WX_MAC_RX_FLOW_CTRL_RFE BIT(0) /* receive fc enable */
+
+#define WX_MAC_WDG_TIMEOUT_WTO_MASK GENMASK(3, 0)
+#define WX_MAC_WDG_TIMEOUT_WTO_DELTA 2
/* MDIO Registers */
#define WX_MSCA 0x11200
#define WX_MSCA_RA(v) FIELD_PREP(U16_MAX, v)
@@ -1027,6 +1038,11 @@ struct vf_data_storage {
bool link_enable;
bool trusted;
int xcast_mode;
+ unsigned int vf_api;
+ bool clear_to_send;
+ u16 pf_vlan; /* When set, guest VLAN config not allowed. */
+ u16 pf_qos;
+ bool pf_set_mac;
u16 vf_mc_hashes[WX_MAX_VF_MC_ENTRIES];
u16 num_vf_mc_hashes;
@@ -1133,6 +1149,7 @@ struct wx {
u32 wol;
u16 bd_number;
+ bool default_up;
struct wx_hw_stats stats;
u64 tx_busy;
--
2.43.2
Powered by blists - more mailing lists