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Message-ID: <Pine.GSO.4.10.10708220206510.22078-100000@guinness>
Date: Wed, 22 Aug 2007 02:10:09 -0400 (EDT)
From: Sreenivasa Honnur <Sreenivasa.Honnur@...erion.com>
To: netdev@...r.kernel.org
cc: jeff@...zik.org, support@...erion.com
Subject: [PATCH 2.6.24 2/3]S2io: Support for add/delete/store/restore ethernet
addresses
- Support to add/delete/store/restore 64 and 128 Ethernet addresses for
Xframe I and Xframe II respectively.
Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@...erion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@...erion.com>
---
diff -urpN patch1/drivers/net/s2io.c patch2/drivers/net/s2io.c
--- patch1/drivers/net/s2io.c 2007-08-18 05:32:23.000000000 +0530
+++ patch2/drivers/net/s2io.c 2007-08-18 07:19:21.000000000 +0530
@@ -3589,6 +3589,9 @@ static void s2io_reset(struct s2io_nic *
/* Set swapper to enable I/O register access */
s2io_set_swapper(sp);
+ /* restore mac_addr entries */
+ restore_mac_and_mc_addr(sp);
+
/* Restore the MSIX table entries from local variables */
restore_xmsi_data(sp);
@@ -3647,9 +3650,6 @@ static void s2io_reset(struct s2io_nic *
writeq(val64, &bar0->pcc_err_reg);
}
- /* restore the previously assigned mac address */
- set_mac_addr(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr);
-
sp->device_enabled_once = FALSE;
}
@@ -4118,8 +4118,19 @@ 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 off;
netif_stop_queue(dev);
+
+ /* delete all populated mac entries */
+ for(off =1; off < config->max_mc_addr; off++) {
+ tmp64 = read_mac_addr(sp,off);
+ if(tmp64 != 0xffffffffffffULL)
+ delete_mac_addr(sp, tmp64);
+ }
+
/* Reset card, kill tasklet and free Tx and Rx buffers. */
s2io_card_down(sp);
@@ -5044,7 +5055,7 @@ static void s2io_set_multicast(struct ne
&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,
@@ -5052,7 +5063,7 @@ static void s2io_set_multicast(struct ne
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),
@@ -5121,7 +5132,8 @@ static void s2io_set_multicast(struct ne
/* 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)
+ - config->mc_start_offset - 1)) {
DBG_PRINT(ERR_DBG, "%s: No more Rx filters ",
dev->name);
DBG_PRINT(ERR_DBG, "can be added, please enable ");
@@ -5141,7 +5153,7 @@ static void s2io_set_multicast(struct ne
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 */
@@ -5173,7 +5185,7 @@ static void s2io_set_multicast(struct ne
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 */
@@ -5188,6 +5200,75 @@ static void s2io_set_multicast(struct ne
}
}
}
+/* read from CAM unicast & multicast addresses and store it in
+ * def_mac_addr structure.
+ **/
+void store_mac_and_mc_addr(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 = read_mac_addr(sp,offset);
+ /* if read fails disable the entry */
+ if(mac_addr == FAILURE)
+ mac_addr = 0xffffffffffffULL;
+ MAC_ADDR_SET(offset,mac_addr);
+ }
+}
+
+/* restore unicast MAC addresses to CAM from def_mac_addr structure
+ **/
+static void restore_mac_and_mc_addr(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++)
+ set_mac_addr(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++)
+ add_mc_addr(sp, sp->def_mac_addr[offset].mac_addr);
+}
+
+/* add a multicast MAC address to CAM.
+ **/
+static int add_mc_addr(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 == 0xffffffffffffULL))
+ 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 = read_mac_addr(sp,i);
+ if(tmp64 == 0xffffffffffffULL) /* 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 */
+ MAC_ADDR_SET(i, mac_addr);
+
+ return (add_mac_addr(sp,mac_addr,i));
+}
/* add MAC address to CAM */
static int add_mac_addr(struct s2io_nic *sp, u64 addr, int off)
@@ -5213,6 +5294,53 @@ static int add_mac_addr(struct s2io_nic
return SUCCESS;
}
+/* deletes a specified unicast/multicast mac entry from CAM */
+static int delete_mac_addr(struct s2io_nic *sp,u64 addr)
+{
+ int off;
+ u64 dis_addr = 0xffffffffffffULL,tmp64;
+ struct config_param *config = &sp->config;
+
+ for(off = 1;
+ off < config->max_mc_addr; off++) {
+ tmp64 = read_mac_addr(sp,off);
+ if(tmp64 == addr) {
+ /* disable the entry by writing 0xffffffffffffULL */
+ if(add_mac_addr(sp,dis_addr,off) == FAILURE)
+ return FAILURE;
+ /* store the new mac list from CAM */
+ store_mac_and_mc_addr(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 read_mac_addr(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, "read_mac_addr failed\n");
+ return FAILURE;
+ }
+ tmp64 = readq(&bar0->rmac_addr_data0_mem);
+ return (tmp64 >> 16);
+}
+
/**
* s2io_set_mac_addr driver entry point
*/
@@ -5243,6 +5371,8 @@ static int set_mac_addr(struct net_devic
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
@@ -5260,9 +5390,28 @@ static int set_mac_addr(struct net_devic
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 = read_mac_addr(sp,i);
+ if(tmp64 == 0xffffffffffffULL) /* 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 */
- MAC_ADDR_SET(0, mac_addr);
- return (add_mac_addr(sp,mac_addr,0));
+ MAC_ADDR_SET(i, mac_addr);
+ return (add_mac_addr(sp,mac_addr,i));
}
/**
@@ -7991,7 +8140,7 @@ s2io_init_nic(struct pci_dev *pdev, cons
*/
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);
@@ -8009,8 +8158,24 @@ s2io_init_nic(struct pci_dev *pdev, cons
/* Set the factory defined MAC address initially */
dev->addr_len = ETH_ALEN;
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 */
+ store_mac_and_mc_addr(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 -urpN patch1/drivers/net/s2io.h patch2/drivers/net/s2io.h
--- patch1/drivers/net/s2io.h 2007-08-18 04:52:10.000000000 +0530
+++ patch2/drivers/net/s2io.h 2007-08-18 07:21:10.000000000 +0530
@@ -459,6 +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 */
@@ -817,9 +820,8 @@ struct s2io_nic {
void __iomem *bar0;
void __iomem *bar1;
#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;
@@ -843,10 +845,9 @@ struct s2io_nic {
#define PROMISC 1
#define ALL_MULTI 2
-#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;
@@ -1063,6 +1064,12 @@ static int s2io_add_isr(struct s2io_nic
static void s2io_rem_isr(struct s2io_nic * sp);
static void restore_xmsi_data(struct s2io_nic *nic);
+static void store_mac_and_mc_addr(struct s2io_nic *sp);
+static void restore_mac_and_mc_addr(struct s2io_nic *sp);
+static u64 read_mac_addr(struct s2io_nic *sp, int offset);
+static int add_mc_addr(struct s2io_nic *sp, u8 * addr);
+static int add_mac_addr(struct s2io_nic *sp, u64 addr, int off);
+static int delete_mac_addr(struct s2io_nic *sp,u64 addr);
static int
s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
diff -urpN patch1/drivers/net/s2io-regs.h patch2/drivers/net/s2io-regs.h
--- patch1/drivers/net/s2io-regs.h 2007-08-18 04:34:49.000000000 +0530
+++ patch2/drivers/net/s2io-regs.h 2007-08-18 05:18:17.000000000 +0530
@@ -721,12 +721,17 @@ struct XENA_dev_config {
u64 rmac_cfg_key;
#define RMAC_CFG_KEY(val) vBIT(val,0,16)
+#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
-#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 */
u64 rmac_addr_cmd_mem;
#define RMAC_ADDR_CMD_MEM_WE BIT(7)
#define RMAC_ADDR_CMD_MEM_RD 0
-
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