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Date: Fri, 14 Sep 2007 07:39:19 -0400 (EDT)
From: Sivakumar Subramani <Sivakumar.Subramani@...erion.com>
To: jeff@...zik.org, netdev@...r.kernel.org
cc: support@...erion.com
Subject: [PATCH 2.6.24 1/3]S2io: Added support set_mac_address driver entry
point
- Added set_mac_address driver entry point
- Copying permanent mac address to dev->perm_addr
- Incorporated following review comments from Jeff
- Converted the macro to a function and removed call to memset
- regarding function naming convention, for all callbacks and entry points
will have 's2io_' prefix and helper functions will have 'do_s2io_' prefix.
Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@...erion.com>
---
diff -urpN orig/drivers/net/s2io.c patch1/drivers/net/s2io.c
--- orig/drivers/net/s2io.c 2007-09-06 14:30:16.000000000 +0530
+++ patch1/drivers/net/s2io.c 2007-09-06 16:21:33.000000000 +0530
@@ -355,6 +355,16 @@ static char ethtool_driver_stats_keys[][
timer.data = (unsigned long) arg; \
mod_timer(&timer, (jiffies + exp)) \
+/* copy mac addr to def_mac_addr array */
+static void do_s2io_copy_mac_addr(struct s2io_nic* sp, int offset, u64 mac_addr)
+{
+ sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr);
+ sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8);
+ sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16);
+ sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24);
+ sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32);
+ sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40);
+}
/* Add the vlan */
static void s2io_vlan_rx_register(struct net_device *dev,
struct vlan_group *grp)
@@ -3420,7 +3430,7 @@ static void s2io_reset(struct s2io_nic *
}
/* restore the previously assigned mac address */
- s2io_set_mac_addr(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr);
+ do_s2io_prog_unicast(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr);
sp->device_enabled_once = FALSE;
}
@@ -3849,7 +3859,7 @@ static int s2io_open(struct net_device *
goto hw_init_failed;
}
- if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) {
+ if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
s2io_card_down(sp);
err = -ENODEV;
@@ -4847,8 +4857,48 @@ static void s2io_set_multicast(struct ne
}
}
+/* add unicast MAC address to CAM */
+static int do_s2io_add_unicast(struct s2io_nic *sp, u64 addr, int off)
+{
+ u64 val64;
+ struct XENA_dev_config __iomem *bar0 = sp->bar0;
+
+ writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
+ &bar0->rmac_addr_data0_mem);
+
+ val64 =
+ RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
+ RMAC_ADDR_CMD_MEM_OFFSET(off);
+ 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, "add_mac_addr failed\n");
+ return FAILURE;
+ }
+ return SUCCESS;
+}
+
+/**
+ * s2io_set_mac_addr driver entry point
+ */
+static int s2io_set_mac_addr(struct net_device *dev, void* p)
+{
+ struct sockaddr *addr=p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
+ memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
+
+ /* store the MAC address in CAM */
+ return (do_s2io_prog_unicast(dev, dev->dev_addr));
+}
+
/**
- * s2io_set_mac_addr - Programs the Xframe mac address
+ * do_s2io_prog_unicast - Programs the Xframe mac address
* @dev : pointer to the device structure.
* @addr: a uchar pointer to the new mac address which is to be set.
* Description : This procedure will program the Xframe to receive
@@ -4856,56 +4906,31 @@ static void s2io_set_multicast(struct ne
* Return value: SUCCESS on success and an appropriate (-)ve integer
* as defined in errno.h file on failure.
*/
-
-static int s2io_set_mac_addr(struct net_device *dev, u8 * addr)
+static int do_s2io_prog_unicast(struct net_device *dev, u8 * addr)
{
struct s2io_nic *sp = dev->priv;
- struct XENA_dev_config __iomem *bar0 = sp->bar0;
- register u64 val64, mac_addr = 0;
+ register u64 mac_addr = 0,perm_addr=0;
int i;
- u64 old_mac_addr = 0;
/*
- * Set the new MAC address as the new unicast filter and reflect this
- * change on the device address registered with the OS. It will be
- * at offset 0.
- */
+ * Set the new MAC address as the new unicast filter and reflect this
+ * change on the device address registered with the OS. It will be
+ * at offset 0.
+ */
for (i = 0; i < ETH_ALEN; i++) {
mac_addr <<= 8;
mac_addr |= addr[i];
- old_mac_addr <<= 8;
- old_mac_addr |= sp->def_mac_addr[0].mac_addr[i];
+ perm_addr <<= 8;
+ perm_addr |= sp->def_mac_addr[0].mac_addr[i];
}
- if(0 == mac_addr)
+ /* check if the dev_addr is different than perm_addr */
+ if(mac_addr == perm_addr)
return SUCCESS;
/* Update the internal structure with this new mac address */
- if(mac_addr != old_mac_addr) {
- memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN));
- sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_addr);
- sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_addr >> 8);
- sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_addr >> 16);
- sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_addr >> 24);
- sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_addr >> 32);
- sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_addr >> 40);
- }
-
- writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
- &bar0->rmac_addr_data0_mem);
-
- val64 =
- RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
- RMAC_ADDR_CMD_MEM_OFFSET(0);
- 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(ERR_DBG, "%s: set_mac_addr failed\n", dev->name);
- return FAILURE;
- }
-
- return SUCCESS;
+ do_s2io_copy_mac_addr(sp, 0, mac_addr);
+ return (do_s2io_add_unicast(sp,mac_addr,0));
}
/**
@@ -7542,6 +7567,7 @@ s2io_init_nic(struct pci_dev *pdev, cons
dev->get_stats = &s2io_get_stats;
dev->set_multicast_list = &s2io_set_multicast;
dev->do_ioctl = &s2io_ioctl;
+ dev->set_mac_address = &s2io_set_mac_addr;
dev->change_mtu = &s2io_change_mtu;
SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
@@ -7628,6 +7654,7 @@ 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);
/* Store the values of the MSIX table in the s2io_nic structure */
store_xmsi_data(sp);
diff -urpN orig/drivers/net/s2io.h patch1/drivers/net/s2io.h
--- orig/drivers/net/s2io.h 2007-09-06 14:30:16.000000000 +0530
+++ patch1/drivers/net/s2io.h 2007-09-06 16:15:16.000000000 +0530
@@ -1046,7 +1046,7 @@ static void s2io_link(struct s2io_nic *
static void s2io_reset(struct s2io_nic * sp);
static int s2io_poll(struct net_device *dev, int *budget);
static void s2io_init_pci(struct s2io_nic * sp);
-static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
+static int do_s2io_prog_unicast(struct net_device *dev, u8 * addr);
static void s2io_alarm_handle(unsigned long data);
static irqreturn_t
s2io_msix_ring_handle(int irq, void *dev_id);
-
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