2006-06-07 Amit S. Kale <[EMAIL PROTECTED]>
* Add netxen ioctl interface
* Add netxen interrupt related routines
diff -Naru linux-2.6.16.20.orig/drivers/net/netxen/netxen_nic_ioctl.h
linux-2.6.16.20/drivers/net/netxen/netxen_nic_ioctl.h
--- linux-2.6.16.20.orig/drivers/net/netxen/netxen_nic_ioctl.h 1969-12-31
16:00:00.000000000 -0800
+++ linux-2.6.16.20/drivers/net/netxen/netxen_nic_ioctl.h 2006-06-06
06:58:11.000000000 -0700
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2003 - 2006 NetXen, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.
+ *
+ * Contact Information:
+ * [EMAIL PROTECTED]
+ * NetXen,
+ * 3965 Freedom Circle, Fourth floor,
+ * Santa Clara, CA 95054
+ */
+
+#ifndef __NETXEN_NIC_IOCTL_H__
+#define __NETXEN_NIC_IOCTL_H__
+
+#include <linux/sockios.h>
+
+#define NETXEN_CMD_START SIOCDEVPRIVATE
+#define NETXEN_NIC_CMD (NETXEN_CMD_START + 1)
+#define NETXEN_NIC_NAME (NETXEN_CMD_START + 2)
+
+typedef enum {
+ netxen_nic_cmd_none = 0,
+ netxen_nic_cmd_pci_read,
+ netxen_nic_cmd_pci_write,
+ netxen_nic_cmd_pci_mem_read,
+ netxen_nic_cmd_pci_mem_write,
+ netxen_nic_cmd_pci_config_read,
+ netxen_nic_cmd_pci_config_write,
+ netxen_nic_cmd_get_stats,
+ netxen_nic_cmd_clear_stats,
+ netxen_nic_cmd_get_version
+} netxen_nic_ioctl_cmd_t;
+
+struct netxen_nic_ioctl_data {
+ u32 cmd;
+ u32 unused1;
+ u64 off;
+ u32 size;
+ u32 rv;
+ char u[64];
+ void *ptr;
+};
+
+struct netxen_statistics {
+ u64 rx_packets;
+ u64 tx_packets;
+ u64 rx_bytes;
+ u64 rx_errors;
+ u64 tx_bytes;
+ u64 tx_errors;
+ u64 rx_crc_errors;
+ u64 rx_short_length_error;
+ u64 rx_long_length_error;
+ u64 rx_mac_errors;
+};
+
+#endif /* __NETXEN_NIC_IOCTL_H_ */
diff -Naru linux-2.6.16.20.orig/drivers/net/netxen/netxen_nic_isr.c
linux-2.6.16.20/drivers/net/netxen/netxen_nic_isr.c
--- linux-2.6.16.20.orig/drivers/net/netxen/netxen_nic_isr.c 1969-12-31
16:00:00.000000000 -0800
+++ linux-2.6.16.20/drivers/net/netxen/netxen_nic_isr.c 2006-06-06
06:58:11.000000000 -0700
@@ -0,0 +1,430 @@
+/*
+ * Copyright (C) 2003 - 2006 NetXen, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.
+ *
+ * Contact Information:
+ * [EMAIL PROTECTED]
+ * NetXen,
+ * 3965 Freedom Circle, Fourth floor,
+ * Santa Clara, CA 95054
+ */
+
+#include <linux/netdevice.h>
+#include <linux/delay.h>
+
+#include "netxen_nic.h"
+#include "netxen_nic_hw.h"
+#include "netxen_nic_phan_reg.h"
+
+/*
+ * This will be called when all the ports of the adapter are removed.
+ * This will cleanup and disable interrupts and irq.
+ */
+void netxen_nic_down(struct netxen_port *port)
+{
+ struct netxen_adapter *adapter = port->adapter;
+ int i, j, ctxid;
+ struct netxen_cmd_buffer *cmd_buff;
+ struct netxen_skb_frag *buffrag;
+ struct netxen_ring_context *ctx;
+
+ /* disable phy_ints */
+ netxen_nic_disable_phy_interrupts(adapter, (long)port->portnum);
+
+ adapter->active_ports--;
+
+ if (!adapter->active_ports) {
+ read_lock(&adapter->adapter_lock);
+ netxen_nic_disable_int(adapter);
+ read_unlock(&adapter->adapter_lock);
+
+ for (ctxid = 0; ctxid < MAX_RING_CTX; ++ctxid) {
+ ctx = &adapter->ring_ctx[ctxid];
+ cmd_buff = ctx->cmd_buf_arr;
+
+ for (i = 0; i < ctx->max_tx_desc_count; i++) {
+ buffrag = cmd_buff->frag_array;
+ if (buffrag->dma) {
+ pci_unmap_single(port->pdev,
+ buffrag->dma,
+ buffrag->length,
+ PCI_DMA_TODEVICE);
+ buffrag->dma = (u64) NULL;
+ }
+ for (j = 1; j < cmd_buff->frag_count; j++) {
+ buffrag++;
+ if (buffrag->dma) {
+ pci_unmap_page(port->pdev,
+ buffrag->dma,
+ buffrag->length,
+
PCI_DMA_TODEVICE);
+ buffrag->dma = (u64) NULL;
+ }
+ }
+ /* Free the skb we received in
+ netxen_nic_xmit_frame */
+ if (cmd_buff->skb) {
+ dev_kfree_skb_any(cmd_buff->skb);
+ cmd_buff->skb = NULL;
+ }
+ cmd_buff++;
+ }
+ }
+ }
+ del_timer_sync(&adapter->watchdog_timer);
+}
+
+int netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct netxen_port *port = netdev_priv(netdev);
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev)) {
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ netxen_nic_down(port);
+ }
+
+ return 0;
+}
+
+int netxen_nic_resume(struct pci_dev *pdev)
+{
+ u32 ret;
+ struct net_device *netdev = pci_get_drvdata(pdev);
+
+ ret = pci_enable_device(pdev);
+ netif_device_attach(netdev);
+ return ret;
+}
+
+/*
+ * netxen_nic_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ */
+struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
+{
+ struct netxen_port *port = netdev_priv(netdev);
+ struct net_device_stats *stats = &port->net_stats;
+
+ memset(stats, 0, sizeof(*stats));
+
+ /* total packets received */
+ stats->rx_packets = port->stats.no_rcv;
+ /* total packets transmitted */
+ stats->tx_packets = port->stats.xmitedframes + port->stats.xmitfinished;
+ /* total bytes received */
+ stats->rx_bytes = port->stats.rxbytes;
+ /* total bytes transmitted */
+ stats->tx_bytes = port->stats.txbytes;
+ /* bad packets received */
+ stats->rx_errors = port->stats.rcvdbadskb;
+ /* packet transmit problems */
+ stats->tx_errors = port->stats.nocmddescriptor;
+ /* no space in linux buffers */
+ stats->rx_dropped = port->stats.updropped;
+ /* no space available in linux */
+ stats->tx_dropped = port->stats.txdropped;
+
+ return stats;
+}
+
+long netxen_nic_enable_phy_interrupts(struct netxen_adapter *adapter,
+ long portno)
+{
+ long result = 0;
+
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ result = netxen_niu_gbe_enable_phy_interrupts(adapter, portno);
+ break;
+
+ case NETXEN_NIC_XGBE:
+ netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x3f);
+ break;
+
+ default:
+ printk(KERN_ERR "%s: Unknown board type\n",
+ netxen_nic_driver_name);
+ result = -1;
+ }
+
+ return result;
+}
+
+long netxen_nic_disable_phy_interrupts(struct netxen_adapter *adapter,
+ long portno)
+{
+ long result = 0;
+
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ result = netxen_niu_gbe_disable_phy_interrupts(adapter, portno);
+ break;
+
+ case NETXEN_NIC_XGBE:
+ netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x7f);
+ break;
+
+ default:
+ printk(KERN_ERR "%s: Unknown board type\n",
+ netxen_nic_driver_name);
+ result = -1;
+ }
+
+ return result;
+}
+
+long netxen_nic_clear_phy_interrupts(struct netxen_adapter *adapter,
+ long portno)
+{
+ long result = 0;
+
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ result = netxen_niu_gbe_clear_phy_interrupts(adapter, portno);
+ break;
+
+ case NETXEN_NIC_XGBE:
+ netxen_crb_writelit_adapter(adapter, NETXEN_NIU_ACTIVE_INT, -1);
+ break;
+
+ default:
+ printk(KERN_ERR "%s: Unknown board type\n",
+ netxen_nic_driver_name);
+ result = -1;
+ }
+
+ return result;
+}
+
+void netxen_nic_set_mii_mode(struct netxen_adapter *adapter, long portno,
+ long enable)
+{
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ netxen_niu_gbe_set_mii_mode(adapter, portno, enable);
+ break;
+
+ case NETXEN_NIC_XGBE:
+ printk(KERN_ERR "%s: Function %s is not implemented for XG\n",
+ netxen_nic_driver_name, __FUNCTION__);
+ break;
+
+ default:
+ printk(KERN_ERR "%s: Unknown board type\n",
+ netxen_nic_driver_name);
+ }
+}
+
+void
+netxen_nic_set_gmii_mode(struct netxen_adapter *adapter, long portno,
+ long enable)
+{
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ netxen_niu_gbe_set_gmii_mode(adapter, portno, enable);
+ break;
+
+ case NETXEN_NIC_XGBE:
+ printk(KERN_ERR "%s: Function %s is not implemented for XG\n",
+ netxen_nic_driver_name, __FUNCTION__);
+ break;
+
+ default:
+ printk(KERN_ERR "%s: Unknown board type\n",
+ netxen_nic_driver_name);
+ }
+}
+
+void netxen_indicate_link_status(struct netxen_adapter *adapter, u32 portno,
+ u32 link)
+{
+ struct netxen_port *pport = adapter->port[portno];
+ struct net_device *netdev = pport->netdev;
+
+ if (link)
+ netif_carrier_on(netdev);
+ else
+ netif_carrier_off(netdev);
+}
+
+void netxen_handle_port_int(struct netxen_adapter *adapter, u32 portno,
+ u32 enable)
+{
+ u32 intr;
+ struct netxen_niu_phy_interrupt *int_src;
+ struct netxen_port *port;
+
+ /* This should clear the interrupt source */
+ netxen_nic_phy_read(adapter, portno,
+ NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS, &intr);
+ if (intr == 0) {
+ DPRINTK(INFO, "No phy interrupts for port #%d\n", portno);
+ return;
+ }
+ int_src = (struct netxen_niu_phy_interrupt *)&intr;
+ netxen_nic_disable_phy_interrupts(adapter, portno);
+
+ port = adapter->port[portno];
+
+ if (int_src->jabber)
+ DPRINTK(INFO, "NetXen: %s Jabber interrupt \n",
+ port->netdev->name);
+
+ if (int_src->polarity_changed)
+ DPRINTK(INFO, "NetXen: %s POLARITY CHANGED int \n",
+ port->netdev->name);
+
+ if (int_src->energy_detect)
+ DPRINTK(INFO, "NetXen: %s ENERGY DETECT INT \n",
+ port->netdev->name);
+
+ if (int_src->downshift)
+ DPRINTK(INFO, "NetXen: %s DOWNSHIFT INT \n",
+ port->netdev->name);
+ /* write it down later.. */
+ if ((int_src->speed_changed) || (int_src->link_status_changed)) {
+ struct netxen_niu_phy_status status;
+
+ DPRINTK(INFO, "NetXen: %s SPEED CHANGED OR"
+ " LINK STATUS CHANGED \n", port->netdev->name);
+
+ if (netxen_nic_phy_read(adapter, portno,
+ NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
+ (netxen_crbword_t *) & status) == 0) {
+ if (int_src->link_status_changed) {
+ if (status.link) {
+ netxen_niu_gbe_init_port(adapter,
+ portno);
+ printk("%s: %s Link UP\n",
+ netxen_nic_driver_name,
+ port->netdev->name);
+
+ } else {
+ printk("%s: %s Link DOWN\n",
+ netxen_nic_driver_name,
+ port->netdev->name);
+ }
+ netxen_indicate_link_status(adapter, portno,
+ status.link);
+ }
+ }
+ }
+ netxen_nic_enable_phy_interrupts(adapter, portno);
+}
+
+void netxen_nic_isr_other(struct netxen_adapter *adapter)
+{
+ u32 enable, portno;
+ u32 i2qhi;
+
+ /*
+ * bit 3 is for i2qInt, if high its enabled
+ * check for phy interrupts
+ * read vector and check for bit 45 for phy
+ * clear int by writing the same value into ISR_INT_VECTOR REG
+ */
+
+ DPRINTK(INFO, "I2Q is the source of INT \n");
+
+ /* verify the offset */
+ read_lock(&adapter->adapter_lock);
+ i2qhi = readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_I2Q_CLR_PCI_HI));
+ read_unlock(&adapter->adapter_lock);
+
+ DPRINTK(INFO, "isr NETXEN_I2Q_CLR_PCI_HI = 0x%x \n", i2qhi);
+
+ if (i2qhi & 0x4000) {
+ for (portno = 0; portno < NETXEN_NIU_MAX_GBE_PORTS; portno++) {
+ DPRINTK(INFO, "External PHY interrupt ON PORT %d\n",
+ portno);
+
+ enable = 1;
+ netxen_handle_port_int(adapter, portno, enable);
+ }
+
+ /* Clear the interrupt on I2Q */
+ read_lock(&adapter->adapter_lock);
+ writel((u32) i2qhi,
+ NETXEN_CRB_NORMALIZE(adapter, NETXEN_I2Q_CLR_PCI_HI));
+ read_unlock(&adapter->adapter_lock);
+
+ }
+}
+
+void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
+{
+ u32 val, val1;
+
+ switch (adapter->ahw.board_type) {
+ case NETXEN_NIC_GBE:
+ val = readl(NETXEN_CRB_NORMALIZE(adapter, ISR_INT_VECTOR));
+ if (val & 0x4) {
+ adapter->stats.otherints++;
+ netxen_nic_isr_other(adapter);
+ }
+ break;
+
+ case NETXEN_NIC_XGBE:
+ {
+ struct net_device *netdev = adapter->port[0]->netdev;
+
+ /* WINDOW = 1 */
+ read_lock(&adapter->adapter_lock);
+ val1 =
+ readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
+ read_unlock(&adapter->adapter_lock);
+
+ if (adapter->ahw.xg_linkup == 1 && val1 != XG_LINK_UP) {
+ printk(KERN_INFO "%s: %s NIC Link is down\n",
+ netxen_nic_driver_name, netdev->name);
+ adapter->ahw.xg_linkup = 0;
+ /* read twice to clear sticky bits */
+ /* WINDOW = 0 */
+ netxen_nic_read_w0(adapter,
+ NETXEN_NIU_XG_STATUS, &val1);
+ netxen_nic_read_w0(adapter,
+ NETXEN_NIU_XG_STATUS, &val1);
+
+ if ((val1 & 0xffb) != 0xffb) {
+ printk(KERN_INFO
+ "%s ISR: Sync/Align BAD:
0x%08x\n",
+ netxen_nic_driver_name, val1);
+ }
+
+ } else if (adapter->ahw.xg_linkup == 0
+ && val1 == XG_LINK_UP) {
+ printk(KERN_INFO "%s: %s NIC Link is up\n",
+ netxen_nic_driver_name, netdev->name);
+ adapter->ahw.xg_linkup = 1;
+ }
+
+ }
+ break;
+
+ default:
+ printk(KERN_ERR "%s ISR: Unknown board type\n",
+ netxen_nic_driver_name);
+ }
+}
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