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path: root/drivers/net/netxen/netxen_nic_main.c
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Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
-rw-r--r--drivers/net/netxen/netxen_nic_main.c306
1 files changed, 177 insertions, 129 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index df0bb36a1cf..575b71b6720 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -1,25 +1,25 @@
/*
* 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:
* info@netxen.com
* NetXen,
@@ -32,6 +32,7 @@
*/
#include <linux/vmalloc.h>
+#include <linux/highmem.h>
#include "netxen_nic_hw.h"
#include "netxen_nic.h"
@@ -48,14 +49,21 @@ MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
-char netxen_nic_driver_name[] = "netxen";
+char netxen_nic_driver_name[] = "netxen-nic";
static char netxen_nic_driver_string[] = "NetXen Network Driver version "
NETXEN_NIC_LINUX_VERSIONID;
+struct netxen_adapter *g_adapter = NULL;
+
#define NETXEN_NETDEV_WEIGHT 120
#define NETXEN_ADAPTER_UP_MAGIC 777
#define NETXEN_NIC_PEG_TUNE 0
+u8 nx_p2_id = NX_P2_C0;
+
+#define DMA_32BIT_MASK 0x00000000ffffffffULL
+#define DMA_35BIT_MASK 0x00000007ffffffffULL
+
/* Local functions to NetXen NIC driver */
static int __devinit netxen_nic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
@@ -87,6 +95,9 @@ static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
+struct workqueue_struct *netxen_workq;
+static void netxen_watchdog(unsigned long);
+
/*
* netxen_nic_probe()
*
@@ -105,20 +116,28 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct net_device *netdev = NULL;
struct netxen_adapter *adapter = NULL;
struct netxen_port *port = NULL;
- u8 *mem_ptr0 = NULL;
- u8 *mem_ptr1 = NULL;
- u8 *mem_ptr2 = NULL;
+ void __iomem *mem_ptr0 = NULL;
+ void __iomem *mem_ptr1 = NULL;
+ void __iomem *mem_ptr2 = NULL;
- unsigned long mem_base, mem_len;
+ u8 *db_ptr = NULL;
+ unsigned long mem_base, mem_len, db_base, db_len;
int pci_using_dac, i, err;
int ring;
struct netxen_recv_context *recv_ctx = NULL;
struct netxen_rcv_desc_ctx *rcv_desc = NULL;
struct netxen_cmd_buffer *cmd_buf_arr = NULL;
u64 mac_addr[FLASH_NUM_PORTS + 1];
- int valid_mac;
+ int valid_mac = 0;
+ static int netxen_cards_found = 0;
printk(KERN_INFO "%s \n", netxen_nic_driver_string);
+ /* In current scheme, we use only PCI function 0 */
+ if (PCI_FUNC(pdev->devfn) != 0) {
+ DPRINTK(ERR, "NetXen function %d will not be enabled.\n",
+ PCI_FUNC(pdev->devfn));
+ return -ENODEV;
+ }
if ((err = pci_enable_device(pdev)))
return err;
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
@@ -130,10 +149,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_disable_pdev;
pci_set_master(pdev);
- if ((pci_set_dma_mask(pdev, DMA_64BIT_MASK) == 0) &&
- (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) == 0))
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &nx_p2_id);
+ if (nx_p2_id == NX_P2_C1 &&
+ (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) &&
+ (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) {
pci_using_dac = 1;
- else {
+ } else {
if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) ||
(err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)))
goto err_out_free_res;
@@ -153,21 +174,34 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ioremap(mem_base + THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
if ((mem_ptr0 == 0UL) || (mem_ptr1 == 0UL) || (mem_ptr2 == 0UL)) {
- DPRINTK(1, ERR,
+ DPRINTK(ERR,
"Cannot remap adapter memory aborting.:"
"0 -> %p, 1 -> %p, 2 -> %p\n",
mem_ptr0, mem_ptr1, mem_ptr2);
err = -EIO;
- if (mem_ptr0)
- iounmap(mem_ptr0);
- if (mem_ptr1)
- iounmap(mem_ptr1);
- if (mem_ptr2)
- iounmap(mem_ptr2);
-
- goto err_out_free_res;
+ goto err_out_iounmap;
+ }
+ db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
+ db_len = pci_resource_len(pdev, 4);
+
+ if (db_len == 0) {
+ printk(KERN_ERR "%s: doorbell is disabled\n",
+ netxen_nic_driver_name);
+ err = -EIO;
+ goto err_out_iounmap;
+ }
+ DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base,
+ db_len);
+
+ db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
+ if (db_ptr == 0UL) {
+ printk(KERN_ERR "%s: Failed to allocate doorbell map.",
+ netxen_nic_driver_name);
+ err = -EIO;
+ goto err_out_iounmap;
}
+ DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr);
/*
* Allocate a adapter structure which will manage all the initialization
@@ -183,17 +217,24 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netxen_nic_driver_name,
(int)sizeof(struct netxen_adapter));
err = -ENOMEM;
- goto err_out_iounmap;
+ goto err_out_dbunmap;
}
+ if (netxen_cards_found == 0) {
+ g_adapter = adapter;
+ }
adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS;
adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS;
adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS;
+ adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS;
pci_set_drvdata(pdev, adapter);
cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE);
if (cmd_buf_arr == NULL) {
+ printk(KERN_ERR
+ "%s: Could not allocate cmd_buf_arr memory:%d\n",
+ netxen_nic_driver_name, (int)TX_RINGSIZE);
err = -ENOMEM;
goto err_out_free_adapter;
}
@@ -220,11 +261,23 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH;
break;
+ case RCV_RING_LRO:
+ rcv_desc->max_rx_desc_count =
+ adapter->max_lro_rx_desc_count;
+ rcv_desc->flags = RCV_DESC_LRO;
+ rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN;
+ rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
+ break;
+
}
rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *)
vmalloc(RCV_BUFFSIZE);
if (rcv_desc->rx_buf_arr == NULL) {
+ printk(KERN_ERR "%s: Could not allocate"
+ "rcv_desc->rx_buf_arr memory:%d\n",
+ netxen_nic_driver_name,
+ (int)RCV_BUFFSIZE);
err = -ENOMEM;
goto err_out_free_rx_buffer;
}
@@ -233,30 +286,21 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
- adapter->ops = kzalloc(sizeof(struct netxen_drvops), GFP_KERNEL);
- if (adapter->ops == NULL) {
- printk(KERN_ERR
- "%s: Could not allocate memory for adapter->ops:%d\n",
- netxen_nic_driver_name,
- (int)sizeof(struct netxen_adapter));
- err = -ENOMEM;
- goto err_out_free_rx_buffer;
- }
-
adapter->cmd_buf_arr = cmd_buf_arr;
adapter->ahw.pci_base0 = mem_ptr0;
adapter->ahw.pci_base1 = mem_ptr1;
adapter->ahw.pci_base2 = mem_ptr2;
+ adapter->ahw.db_base = db_ptr;
+ adapter->ahw.db_len = db_len;
spin_lock_init(&adapter->tx_lock);
spin_lock_init(&adapter->lock);
+ netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */
#ifdef CONFIG_IA64
netxen_pinit_from_rom(adapter, 0);
udelay(500);
netxen_load_firmware(adapter);
#endif
- /* initialize the buffers in adapter */
- netxen_initialize_adapter_sw(adapter);
/*
* Set the CRB window to invalid. If any register in window 0 is
* accessed it should set the window to 0 and then reset it to 1.
@@ -277,7 +321,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
adapter->ahw.pdev = pdev;
adapter->proc_cmd_buf_counter = 0;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &adapter->ahw.revision_id);
+ adapter->ahw.revision_id = nx_p2_id;
if (pci_enable_msi(pdev)) {
adapter->flags &= ~NETXEN_NIC_MSI_ENABLED;
@@ -299,6 +343,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_CONSUMER_OFFSET));
writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO));
+ /* do this before waking up pegs so that we have valid dummy dma addr */
+ err = netxen_initialize_adapter_offload(adapter);
+ if (err) {
+ goto err_out_free_dev;
+ }
+
/* Unlock the HW, prompting the boot sequence */
writel(1,
NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
@@ -307,6 +357,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
/* initialize the all the ports */
+ adapter->active_ports = 0;
for (i = 0; i < adapter->ahw.max_ports; i++) {
netdev = alloc_etherdev(sizeof(struct netxen_port));
@@ -372,10 +423,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->dev_addr[4],
netdev->dev_addr[5]);
} else {
- if (adapter->ops->macaddr_set)
- adapter->ops->macaddr_set(port,
- netdev->
- dev_addr);
+ if (adapter->macaddr_set)
+ adapter->macaddr_set(port,
+ netdev->dev_addr);
}
}
adapter->netdev = netdev;
@@ -391,7 +441,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_free_dev;
}
adapter->port_count++;
- adapter->active_ports = 0;
adapter->port[i] = port;
}
@@ -412,6 +461,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
break;
}
+ adapter->number = netxen_cards_found;
adapter->driver_mismatch = 0;
return 0;
@@ -426,7 +476,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
free_netdev(port->netdev);
}
}
- kfree(adapter->ops);
+
+ netxen_free_adapter_offload(adapter);
err_out_free_rx_buffer:
for (i = 0; i < MAX_RCV_CTX; ++i) {
@@ -439,19 +490,23 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
}
-
vfree(cmd_buf_arr);
- kfree(adapter->port);
-
err_out_free_adapter:
pci_set_drvdata(pdev, NULL);
kfree(adapter);
+ err_out_dbunmap:
+ if (db_ptr)
+ iounmap(db_ptr);
+
err_out_iounmap:
- iounmap(mem_ptr0);
- iounmap(mem_ptr1);
- iounmap(mem_ptr2);
+ if (mem_ptr0)
+ iounmap(mem_ptr0);
+ if (mem_ptr1)
+ iounmap(mem_ptr1);
+ if (mem_ptr2)
+ iounmap(mem_ptr2);
err_out_free_res:
pci_release_regions(pdev);
@@ -476,12 +531,8 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
netxen_nic_stop_all_ports(adapter);
/* leave the hw in the same state as reboot */
- netxen_pinit_from_rom(adapter, 0);
- udelay(500);
netxen_load_firmware(adapter);
-
- if ((adapter->flags & NETXEN_NIC_MSI_ENABLED))
- netxen_nic_disable_int(adapter);
+ netxen_free_adapter_offload(adapter);
udelay(500); /* Delay for a while to drain the DMA engines */
for (i = 0; i < adapter->port_count; i++) {
@@ -498,6 +549,7 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
netxen_free_hw_resources(adapter);
+ iounmap(adapter->ahw.db_base);
iounmap(adapter->ahw.pci_base0);
iounmap(adapter->ahw.pci_base1);
iounmap(adapter->ahw.pci_base2);
@@ -524,7 +576,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
}
vfree(adapter->cmd_buf_arr);
- kfree(adapter->ops);
kfree(adapter);
}
@@ -546,6 +597,8 @@ static int netxen_nic_open(struct net_device *netdev)
return -EIO;
}
netxen_nic_flash_print(adapter);
+ if (adapter->init_niu)
+ adapter->init_niu(adapter);
/* setup all the resources for the Phantom... */
/* this include the descriptors for rcv, tx, and status */
@@ -556,32 +609,31 @@ static int netxen_nic_open(struct net_device *netdev)
err);
return err;
}
- if (adapter->ops->init_port
- && adapter->ops->init_port(adapter, port->portnum) != 0) {
+ if (adapter->init_port
+ && adapter->init_port(adapter, port->portnum) != 0) {
printk(KERN_ERR "%s: Failed to initialize port %d\n",
netxen_nic_driver_name, port->portnum);
netxen_free_hw_resources(adapter);
return -EIO;
}
- if (adapter->ops->init_niu)
- adapter->ops->init_niu(adapter);
for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
netxen_post_rx_buffers(adapter, ctx, ring);
}
- adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
- }
- adapter->active_ports++;
- if (adapter->active_ports == 1) {
+ adapter->irq = adapter->ahw.pdev->irq;
err = request_irq(adapter->ahw.pdev->irq, &netxen_intr,
SA_SHIRQ | SA_SAMPLE_RANDOM, netdev->name,
adapter);
if (err) {
printk(KERN_ERR "request_irq failed with: %d\n", err);
- adapter->active_ports--;
+ netxen_free_hw_resources(adapter);
return err;
}
- adapter->irq = adapter->ahw.pdev->irq;
+
+ adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
+ }
+ adapter->active_ports++;
+ if (adapter->active_ports == 1) {
if (!adapter->driver_mismatch)
mod_timer(&adapter->watchdog_timer, jiffies);
@@ -590,11 +642,14 @@ static int netxen_nic_open(struct net_device *netdev)
/* Done here again so that even if phantom sw overwrote it,
* we set it */
- if (adapter->ops->macaddr_set)
- adapter->ops->macaddr_set(port, netdev->dev_addr);
+ if (adapter->macaddr_set)
+ adapter->macaddr_set(port, netdev->dev_addr);
netxen_nic_set_link_parameters(port);
netxen_nic_set_multi(netdev);
+ if (adapter->set_mtu)
+ adapter->set_mtu(port, netdev->mtu);
+
if (!adapter->driver_mismatch)
netif_start_queue(netdev);
@@ -647,6 +702,7 @@ static int netxen_nic_close(struct net_device *netdev)
}
cmd_buff++;
}
+ FLUSH_SCHEDULED_WORK();
del_timer_sync(&adapter->watchdog_timer);
}
@@ -667,7 +723,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
struct cmd_desc_type0 *hwdesc;
int k;
struct netxen_cmd_buffer *pbuf = NULL;
- unsigned int tries = 0;
static int dropped_packet = 0;
int frag_count;
u32 local_producer = 0;
@@ -729,7 +784,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
if (((skb->nh.iph)->ihl * sizeof(u32)) +
((skb->h.th)->doff * sizeof(u32)) +
sizeof(struct ethhdr) >
- (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) {
+ (sizeof(struct cmd_desc_type0) - 2)) {
no_of_desc++;
}
}
@@ -740,27 +795,17 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
if ((k + no_of_desc) >=
((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count :
last_cmd_consumer)) {
+ port->stats.nocmddescriptor++;
+ DPRINTK(ERR, "No command descriptors available,"
+ " producer = %d, consumer = %d count=%llu,"
+ " dropping packet\n", producer,
+ adapter->last_cmd_consumer,
+ port->stats.nocmddescriptor);
+
+ netif_stop_queue(netdev);
+ port->flags |= NETXEN_NETDEV_STATUS;
spin_unlock_bh(&adapter->tx_lock);
- if (tries == 0) {
- local_bh_disable();
- netxen_process_cmd_ring((unsigned long)adapter);
- local_bh_enable();
- ++tries;
- goto retry_getting_window;
- } else {
- port->stats.nocmddescriptor++;
- DPRINTK(ERR, "No command descriptors available,"
- " producer = %d, consumer = %d count=%llu,"
- " dropping packet\n", producer,
- adapter->last_cmd_consumer,
- port->stats.nocmddescriptor);
-
- spin_lock_bh(&adapter->tx_lock);
- netif_stop_queue(netdev);
- port->flags |= NETXEN_NETDEV_STATUS;
- spin_unlock_bh(&adapter->tx_lock);
- return NETDEV_TX_BUSY;
- }
+ return NETDEV_TX_BUSY;
}
k = get_index_range(k, max_tx_desc_count, no_of_desc);
adapter->cmd_producer = k;
@@ -782,7 +827,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
pbuf->mss = 0;
hwdesc->mss = 0;
}
- pbuf->no_of_descriptors = no_of_desc;
pbuf->total_length = skb->len;
pbuf->skb = skb;
pbuf->cmd = TX_ETHER_PKT;
@@ -792,11 +836,11 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
buffrag->dma = pci_map_single(port->pdev, skb->data, first_seg_len,
PCI_DMA_TODEVICE);
buffrag->length = first_seg_len;
- CMD_DESC_TOTAL_LENGTH_WRT(hwdesc, skb->len);
- hwdesc->num_of_buffers = frag_count;
- hwdesc->opcode = TX_ETHER_PKT;
+ netxen_set_cmd_desc_totallength(hwdesc, skb->len);
+ netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count);
+ netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT);
- CMD_DESC_PORT_WRT(hwdesc, port->portnum);
+ netxen_set_cmd_desc_port(hwdesc, port->portnum);
hwdesc->buffer1_length = cpu_to_le16(first_seg_len);
hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
@@ -855,12 +899,12 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
/* For LSO, we need to copy the MAC/IP/TCP headers into
* the descriptor ring
*/
- if (hw->cmd_desc_head[saved_producer].opcode == TX_TCP_LSO) {
+ if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer])
+ == TX_TCP_LSO) {
int hdr_len, first_hdr_len, more_hdr;
hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length;
- if (hdr_len > (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) {
- first_hdr_len =
- sizeof(struct cmd_desc_type0) - NET_IP_ALIGN;
+ if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
+ first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
more_hdr = 1;
} else {
first_hdr_len = hdr_len;
@@ -870,7 +914,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
hwdesc = &hw->cmd_desc_head[producer];
/* copy the first 64 bytes */
- memcpy(((void *)hwdesc) + NET_IP_ALIGN,
+ memcpy(((void *)hwdesc) + 2,
(void *)(skb->data), first_hdr_len);
producer = get_next_index(producer, max_tx_desc_count);
@@ -886,7 +930,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
}
spin_lock_bh(&adapter->tx_lock);
port->stats.txbytes +=
- CMD_DESC_TOTAL_LENGTH(&hw->cmd_desc_head[saved_producer]);
+ netxen_get_cmd_desc_totallength(&hw->cmd_desc_head[saved_producer]);
/* Code to update the adapter considering how many producer threads
are currently working */
if ((--adapter->num_threads) == 0) {
@@ -896,20 +940,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET));
wmb();
adapter->total_threads = 0;
- } else {
- u32 crb_producer = 0;
- crb_producer =
- readl(NETXEN_CRB_NORMALIZE
- (adapter, CRB_CMD_PRODUCER_OFFSET));
- if (crb_producer == local_producer) {
- crb_producer = get_index_range(crb_producer,
- max_tx_desc_count,
- no_of_desc);
- writel(crb_producer,
- NETXEN_CRB_NORMALIZE(adapter,
- CRB_CMD_PRODUCER_OFFSET));
- wmb();
- }
}
port->stats.xmitfinished++;
@@ -926,15 +956,20 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
static void netxen_watchdog(unsigned long v)
{
struct netxen_adapter *adapter = (struct netxen_adapter *)v;
- schedule_work(&adapter->watchdog_task);
+ if (adapter != g_adapter) {
+ printk("%s: ***BUG*** adapter[%p] != g_adapter[%p]\n",
+ __FUNCTION__, adapter, g_adapter);
+ return;
+ }
+
+ SCHEDULE_WORK(&adapter->watchdog_task);
}
static void netxen_tx_timeout(struct net_device *netdev)
{
struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev);
- struct netxen_adapter *adapter = port->adapter;
- schedule_work(&adapter->tx_timeout_task);
+ SCHEDULE_WORK(&port->adapter->tx_timeout_task);
}
static void netxen_tx_timeout_task(struct work_struct *work)
@@ -967,6 +1002,11 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev)
if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
int count = 0;
u32 mask;
+ mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR));
+ if ((mask & 0x80) == 0) {
+ /* not our interrupt */
+ return ret;
+ }
netxen_nic_disable_int(adapter);
/* Window = 0 or 1 */
do {
@@ -1026,7 +1066,10 @@ irqreturn_t netxen_intr(int irq, void *data)
netdev = port->netdev;
/* process our status queue (for all 4 ports) */
- netxen_handle_int(adapter, netdev);
+ if (netif_running(netdev)) {
+ netxen_handle_int(adapter, netdev);
+ break;
+ }
}
return IRQ_HANDLED;
@@ -1040,11 +1083,12 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget)
int done = 1;
int ctx;
int this_work_done;
+ int work_done = 0;
DPRINTK(INFO, "polling for %d descriptors\n", *budget);
port->stats.polled++;
- adapter->work_done = 0;
+ work_done = 0;
for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
/*
* Fairness issue. This will give undue weight to the
@@ -1061,20 +1105,20 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget)
this_work_done = netxen_process_rcv_ring(adapter, ctx,
work_to_do /
MAX_RCV_CTX);
- adapter->work_done += this_work_done;
+ work_done += this_work_done;
}
- netdev->quota -= adapter->work_done;
- *budget -= adapter->work_done;
+ netdev->quota -= work_done;
+ *budget -= work_done;
- if (adapter->work_done >= work_to_do
- && netxen_nic_rx_has_work(adapter) != 0)
+ if (work_done >= work_to_do && netxen_nic_rx_has_work(adapter) != 0)
done = 0;
- netxen_process_cmd_ring((unsigned long)adapter);
+ if (netxen_process_cmd_ring((unsigned long)adapter) == 0)
+ done = 0;
DPRINTK(INFO, "new work_done: %d work_to_do: %d\n",
- adapter->work_done, work_to_do);
+ work_done, work_to_do);
if (done) {
netif_rx_complete(netdev);
netxen_nic_enable_int(adapter);
@@ -1117,8 +1161,9 @@ netxen_nic_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
if (ifr->ifr_data) {
sprintf(dev_name, "%s-%d", NETXEN_NIC_NAME_RSP,
port->portnum);
- nr_bytes = copy_to_user((char *)ifr->ifr_data, dev_name,
- NETXEN_NIC_NAME_LEN);
+ nr_bytes =
+ copy_to_user((char __user *)ifr->ifr_data, dev_name,
+ NETXEN_NIC_NAME_LEN);
if (nr_bytes)
err = -EIO;
@@ -1145,6 +1190,9 @@ static struct pci_driver netxen_driver = {
static int __init netxen_init_module(void)
{
+ if ((netxen_workq = create_singlethread_workqueue("netxen")) == 0)
+ return -ENOMEM;
+
return pci_module_init(&netxen_driver);
}
@@ -1155,7 +1203,7 @@ static void __exit netxen_exit_module(void)
/*
* Wait for some time to allow the dma to drain, if any.
*/
- mdelay(5);
+ destroy_workqueue(netxen_workq);
pci_unregister_driver(&netxen_driver);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 05:09:54 +0000