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-rw-r--r--drivers/net/s2io-regs.h16
-rw-r--r--drivers/net/s2io.c194
-rw-r--r--drivers/net/s2io.h14
3 files changed, 201 insertions, 23 deletions
diff --git a/drivers/net/s2io-regs.h b/drivers/net/s2io-regs.h
index f25264f2638e..2109508c047a 100644
--- a/drivers/net/s2io-regs.h
+++ b/drivers/net/s2io-regs.h
@@ -723,11 +723,17 @@ struct XENA_dev_config {
u64 rmac_cfg_key;
#define RMAC_CFG_KEY(val) vBIT(val,0,16)
-#define MAX_MAC_ADDRESSES 16
-#define MAX_MC_ADDRESSES 32 /* Multicast addresses */
-#define MAC_MAC_ADDR_START_OFFSET 0
-#define MAC_MC_ADDR_START_OFFSET 16
-#define MAC_MC_ALL_MC_ADDR_OFFSET 63 /* enables all multicast pkts */
+#define S2IO_MAC_ADDR_START_OFFSET 0
+
+#define S2IO_XENA_MAX_MC_ADDRESSES 64 /* multicast addresses */
+#define S2IO_HERC_MAX_MC_ADDRESSES 256
+
+#define S2IO_XENA_MAX_MAC_ADDRESSES 16
+#define S2IO_HERC_MAX_MAC_ADDRESSES 64
+
+#define S2IO_XENA_MC_ADDR_START_OFFSET 16
+#define S2IO_HERC_MC_ADDR_START_OFFSET 64
+
u64 rmac_addr_cmd_mem;
#define RMAC_ADDR_CMD_MEM_WE s2BIT(7)
#define RMAC_ADDR_CMD_MEM_RD 0
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 67e0a65fc28c..644d71bfb640 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -3375,6 +3375,9 @@ static void s2io_reset(struct s2io_nic * sp)
/* Set swapper to enable I/O register access */
s2io_set_swapper(sp);
+ /* restore mac_addr entries */
+ do_s2io_restore_unicast_mc(sp);
+
/* Restore the MSIX table entries from local variables */
restore_xmsi_data(sp);
@@ -3433,9 +3436,6 @@ static void s2io_reset(struct s2io_nic * sp)
writeq(val64, &bar0->pcc_err_reg);
}
- /* restore the previously assigned mac address */
- do_s2io_prog_unicast(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr);
-
sp->device_enabled_once = FALSE;
}
@@ -3920,6 +3920,9 @@ hw_init_failed:
static int s2io_close(struct net_device *dev)
{
struct s2io_nic *sp = dev->priv;
+ struct config_param *config = &sp->config;
+ u64 tmp64;
+ int offset;
/* Return if the device is already closed *
* Can happen when s2io_card_up failed in change_mtu *
@@ -3928,6 +3931,14 @@ static int s2io_close(struct net_device *dev)
return 0;
netif_stop_queue(dev);
+
+ /* delete all populated mac entries */
+ for (offset = 1; offset < config->max_mc_addr; offset++) {
+ tmp64 = do_s2io_read_unicast_mc(sp, offset);
+ if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
+ do_s2io_delete_unicast_mc(sp, tmp64);
+ }
+
/* Reset card, kill tasklet and free Tx and Rx buffers. */
s2io_card_down(sp);
@@ -4728,8 +4739,9 @@ static void s2io_set_multicast(struct net_device *dev)
struct XENA_dev_config __iomem *bar0 = sp->bar0;
u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
0xfeffffffffffULL;
- u64 dis_addr = 0xffffffffffffULL, mac_addr = 0;
+ u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
void __iomem *add;
+ struct config_param *config = &sp->config;
if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
/* Enable all Multicast addresses */
@@ -4739,7 +4751,7 @@ static void s2io_set_multicast(struct net_device *dev)
&bar0->rmac_addr_data1_mem);
val64 = RMAC_ADDR_CMD_MEM_WE |
RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
- RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET);
+ RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait till command completes */
wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
@@ -4747,7 +4759,7 @@ static void s2io_set_multicast(struct net_device *dev)
S2IO_BIT_RESET);
sp->m_cast_flg = 1;
- sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET;
+ sp->all_multi_pos = config->max_mc_addr - 1;
} else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
/* Disable all Multicast addresses */
writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
@@ -4816,7 +4828,7 @@ static void s2io_set_multicast(struct net_device *dev)
/* Update individual M_CAST address list */
if ((!sp->m_cast_flg) && dev->mc_count) {
if (dev->mc_count >
- (MAX_ADDRS_SUPPORTED - MAC_MC_ADDR_START_OFFSET - 1)) {
+ (config->max_mc_addr - config->max_mac_addr)) {
DBG_PRINT(ERR_DBG, "%s: No more Rx filters ",
dev->name);
DBG_PRINT(ERR_DBG, "can be added, please enable ");
@@ -4836,7 +4848,7 @@ static void s2io_set_multicast(struct net_device *dev)
val64 = RMAC_ADDR_CMD_MEM_WE |
RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
RMAC_ADDR_CMD_MEM_OFFSET
- (MAC_MC_ADDR_START_OFFSET + i);
+ (config->mc_start_offset + i);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait for command completes */
@@ -4868,7 +4880,7 @@ static void s2io_set_multicast(struct net_device *dev)
val64 = RMAC_ADDR_CMD_MEM_WE |
RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
RMAC_ADDR_CMD_MEM_OFFSET
- (i + MAC_MC_ADDR_START_OFFSET);
+ (i + config->mc_start_offset);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait for command completes */
@@ -4884,8 +4896,78 @@ static void s2io_set_multicast(struct net_device *dev)
}
}
-/* add unicast MAC address to CAM */
-static int do_s2io_add_unicast(struct s2io_nic *sp, u64 addr, int off)
+/* read from CAM unicast & multicast addresses and store it in
+ * def_mac_addr structure
+ */
+void do_s2io_store_unicast_mc(struct s2io_nic *sp)
+{
+ int offset;
+ u64 mac_addr = 0x0;
+ struct config_param *config = &sp->config;
+
+ /* store unicast & multicast mac addresses */
+ for (offset = 0; offset < config->max_mc_addr; offset++) {
+ mac_addr = do_s2io_read_unicast_mc(sp, offset);
+ /* if read fails disable the entry */
+ if (mac_addr == FAILURE)
+ mac_addr = S2IO_DISABLE_MAC_ENTRY;
+ do_s2io_copy_mac_addr(sp, offset, mac_addr);
+ }
+}
+
+/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
+static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
+{
+ int offset;
+ struct config_param *config = &sp->config;
+ /* restore unicast mac address */
+ for (offset = 0; offset < config->max_mac_addr; offset++)
+ do_s2io_prog_unicast(sp->dev,
+ sp->def_mac_addr[offset].mac_addr);
+
+ /* restore multicast mac address */
+ for (offset = config->mc_start_offset;
+ offset < config->max_mc_addr; offset++)
+ do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
+}
+
+/* add a multicast MAC address to CAM */
+static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
+{
+ int i;
+ u64 mac_addr = 0;
+ struct config_param *config = &sp->config;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ mac_addr <<= 8;
+ mac_addr |= addr[i];
+ }
+ if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
+ return SUCCESS;
+
+ /* check if the multicast mac already preset in CAM */
+ for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
+ u64 tmp64;
+ tmp64 = do_s2io_read_unicast_mc(sp, i);
+ if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
+ break;
+
+ if (tmp64 == mac_addr)
+ return SUCCESS;
+ }
+ if (i == config->max_mc_addr) {
+ DBG_PRINT(ERR_DBG,
+ "CAM full no space left for multicast MAC\n");
+ return FAILURE;
+ }
+ /* Update the internal structure with this new mac address */
+ do_s2io_copy_mac_addr(sp, i, mac_addr);
+
+ return (do_s2io_add_mac(sp, mac_addr, i));
+}
+
+/* add MAC address to CAM */
+static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
{
u64 val64;
struct XENA_dev_config __iomem *bar0 = sp->bar0;
@@ -4902,15 +4984,62 @@ static int do_s2io_add_unicast(struct s2io_nic *sp, u64 addr, int off)
if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
S2IO_BIT_RESET)) {
- DBG_PRINT(INFO_DBG, "add_mac_addr failed\n");
+ DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
return FAILURE;
}
return SUCCESS;
}
+/* deletes a specified unicast/multicast mac entry from CAM */
+static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
+{
+ int offset;
+ u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
+ struct config_param *config = &sp->config;
+
+ for (offset = 1;
+ offset < config->max_mc_addr; offset++) {
+ tmp64 = do_s2io_read_unicast_mc(sp, offset);
+ if (tmp64 == addr) {
+ /* disable the entry by writing 0xffffffffffffULL */
+ if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
+ return FAILURE;
+ /* store the new mac list from CAM */
+ do_s2io_store_unicast_mc(sp);
+ return SUCCESS;
+ }
+ }
+ DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
+ (unsigned long long)addr);
+ return FAILURE;
+}
+
+/* read mac entries from CAM */
+static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
+{
+ u64 tmp64 = 0xffffffffffff0000ULL, val64;
+ struct XENA_dev_config __iomem *bar0 = sp->bar0;
+
+ /* read mac addr */
+ val64 =
+ RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
+ RMAC_ADDR_CMD_MEM_OFFSET(offset);
+ writeq(val64, &bar0->rmac_addr_cmd_mem);
+
+ /* Wait till command completes */
+ if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
+ S2IO_BIT_RESET)) {
+ DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
+ return FAILURE;
+ }
+ tmp64 = readq(&bar0->rmac_addr_data0_mem);
+ return (tmp64 >> 16);
+}
/**
* s2io_set_mac_addr driver entry point
*/
+
static int s2io_set_mac_addr(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
@@ -4923,7 +5052,6 @@ static int s2io_set_mac_addr(struct net_device *dev, void *p)
/* store the MAC address in CAM */
return (do_s2io_prog_unicast(dev, dev->dev_addr));
}
-
/**
* do_s2io_prog_unicast - Programs the Xframe mac address
* @dev : pointer to the device structure.
@@ -4933,11 +5061,14 @@ static int s2io_set_mac_addr(struct net_device *dev, void *p)
* Return value: SUCCESS on success and an appropriate (-)ve integer
* as defined in errno.h file on failure.
*/
+
static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
{
struct s2io_nic *sp = dev->priv;
register u64 mac_addr = 0, perm_addr = 0;
int i;
+ u64 tmp64;
+ struct config_param *config = &sp->config;
/*
* Set the new MAC address as the new unicast filter and reflect this
@@ -4955,9 +5086,26 @@ static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
if (mac_addr == perm_addr)
return SUCCESS;
+ /* check if the mac already preset in CAM */
+ for (i = 1; i < config->max_mac_addr; i++) {
+ tmp64 = do_s2io_read_unicast_mc(sp, i);
+ if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
+ break;
+
+ if (tmp64 == mac_addr) {
+ DBG_PRINT(INFO_DBG,
+ "MAC addr:0x%llx already present in CAM\n",
+ (unsigned long long)mac_addr);
+ return SUCCESS;
+ }
+ }
+ if (i == config->max_mac_addr) {
+ DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
+ return FAILURE;
+ }
/* Update the internal structure with this new mac address */
- do_s2io_copy_mac_addr(sp, 0, mac_addr);
- return (do_s2io_add_unicast(sp, mac_addr, 0));
+ do_s2io_copy_mac_addr(sp, i, mac_addr);
+ return (do_s2io_add_mac(sp, mac_addr, i));
}
/**
@@ -7651,7 +7799,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
*/
bar0 = sp->bar0;
val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
- RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET);
+ RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
writeq(val64, &bar0->rmac_addr_cmd_mem);
wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING, S2IO_BIT_RESET);
@@ -7671,6 +7819,20 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
+ /* initialize number of multicast & unicast MAC entries variables */
+ if (sp->device_type == XFRAME_I_DEVICE) {
+ config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
+ config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
+ config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
+ } else if (sp->device_type == XFRAME_II_DEVICE) {
+ config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
+ config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
+ config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
+ }
+
+ /* store mac addresses from CAM to s2io_nic structure */
+ do_s2io_store_unicast_mc(sp);
+
/* Store the values of the MSIX table in the s2io_nic structure */
store_xmsi_data(sp);
/* reset Nic and bring it to known state */
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index cc1797a071aa..b944a948f19d 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -31,6 +31,7 @@
#define SUCCESS 0
#define FAILURE -1
#define S2IO_MINUS_ONE 0xFFFFFFFFFFFFFFFFULL
+#define S2IO_DISABLE_MAC_ENTRY 0xFFFFFFFFFFFFULL
#define S2IO_MAX_PCI_CONFIG_SPACE_REINIT 100
#define S2IO_BIT_RESET 1
#define S2IO_BIT_SET 2
@@ -458,6 +459,9 @@ struct config_param {
#define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
#define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
u16 bus_speed;
+ int max_mc_addr; /* xena=64 herc=256 */
+ int max_mac_addr; /* xena=16 herc=64 */
+ int mc_start_offset; /* xena=16 herc=64 */
};
/* Structure representing MAC Addrs */
@@ -826,7 +830,7 @@ struct s2io_nic {
#define MAX_MAC_SUPPORTED 16
#define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
- struct mac_addr def_mac_addr[MAX_MAC_SUPPORTED];
+ struct mac_addr def_mac_addr[256];
struct net_device_stats stats;
int high_dma_flag;
@@ -853,7 +857,7 @@ struct s2io_nic {
#define MAX_ADDRS_SUPPORTED 64
u16 usr_addr_count;
u16 mc_addr_count;
- struct usr_addr usr_addrs[MAX_ADDRS_SUPPORTED];
+ struct usr_addr usr_addrs[256];
u16 m_cast_flg;
u16 all_multi_pos;
@@ -1066,6 +1070,12 @@ static int s2io_add_isr(struct s2io_nic * sp);
static void s2io_rem_isr(struct s2io_nic * sp);
static void restore_xmsi_data(struct s2io_nic *nic);
+static void do_s2io_store_unicast_mc(struct s2io_nic *sp);
+static void do_s2io_restore_unicast_mc(struct s2io_nic *sp);
+static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset);
+static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr);
+static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int offset);
+static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr);
static int
s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.