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netxen: add 2MB PCI memory support
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New revision of netxen chip has 2MB PCI memory. Older chips
had 128MB addressable PCI memory. To retain compatibility,
this patch adds function pointers based on pci bar0 size.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Dhananjay Phadke authored and Jeff Garzik committed Jul 22, 2008
1 parent e4c93c8 commit 3ce06a3
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Showing 8 changed files with 1,492 additions and 272 deletions.
70 changes: 61 additions & 9 deletions drivers/net/netxen/netxen_nic.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -799,6 +799,12 @@ struct netxen_hardware_context {
unsigned long first_page_group_start;
void __iomem *db_base;
unsigned long db_len;
unsigned long pci_len0;

int qdr_sn_window;
int ddr_mn_window;
unsigned long mn_win_crb;
unsigned long ms_win_crb;

u8 revision_id;
u16 board_type;
Expand Down Expand Up @@ -894,6 +900,8 @@ struct netxen_adapter {
struct work_struct tx_timeout_task;

u32 curr_window;
u32 crb_win;
rwlock_t adapter_lock;

u32 cmd_producer;
__le32 *cmd_consumer;
Expand Down Expand Up @@ -947,6 +955,17 @@ struct netxen_adapter {
int (*init_port) (struct netxen_adapter *, int);
void (*init_niu) (struct netxen_adapter *);
int (*stop_port) (struct netxen_adapter *);

int (*hw_read_wx)(struct netxen_adapter *, ulong, void *, int);
int (*hw_write_wx)(struct netxen_adapter *, ulong, void *, int);
int (*pci_mem_read)(struct netxen_adapter *, u64, void *, int);
int (*pci_mem_write)(struct netxen_adapter *, u64, void *, int);
int (*pci_write_immediate)(struct netxen_adapter *, u64, u32);
u32 (*pci_read_immediate)(struct netxen_adapter *, u64);
void (*pci_write_normalize)(struct netxen_adapter *, u64, u32);
u32 (*pci_read_normalize)(struct netxen_adapter *, u64);
unsigned long (*pci_set_window)(struct netxen_adapter *,
unsigned long long);
}; /* netxen_adapter structure */

/*
Expand Down Expand Up @@ -1022,19 +1041,52 @@ int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter,
int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu);
int netxen_nic_set_mtu_gb(struct netxen_adapter *adapter, int new_mtu);
void netxen_nic_init_niu_gb(struct netxen_adapter *adapter);
void netxen_nic_pci_change_crbwindow(struct netxen_adapter *adapter, u32 wndw);
void netxen_nic_reg_write(struct netxen_adapter *adapter, u64 off, u32 val);
int netxen_nic_reg_read(struct netxen_adapter *adapter, u64 off);
void netxen_nic_write_w0(struct netxen_adapter *adapter, u32 index, u32 value);
void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 * value);
void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 *value);
void netxen_nic_write_w1(struct netxen_adapter *adapter, u32 index, u32 value);
void netxen_nic_read_w1(struct netxen_adapter *adapter, u32 index, u32 *value);

int netxen_nic_get_board_info(struct netxen_adapter *adapter);
int netxen_nic_hw_read_wx(struct netxen_adapter *adapter, u64 off, void *data,
int len);
int netxen_nic_hw_write_wx(struct netxen_adapter *adapter, u64 off, void *data,
int len);

int netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter,
ulong off, void *data, int len);
int netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter,
ulong off, void *data, int len);
int netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
u64 off, void *data, int size);
int netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
u64 off, void *data, int size);
int netxen_nic_pci_write_immediate_128M(struct netxen_adapter *adapter,
u64 off, u32 data);
u32 netxen_nic_pci_read_immediate_128M(struct netxen_adapter *adapter, u64 off);
void netxen_nic_pci_write_normalize_128M(struct netxen_adapter *adapter,
u64 off, u32 data);
u32 netxen_nic_pci_read_normalize_128M(struct netxen_adapter *adapter, u64 off);
unsigned long netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
unsigned long long addr);
void netxen_nic_pci_change_crbwindow_128M(struct netxen_adapter *adapter,
u32 wndw);

int netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter,
ulong off, void *data, int len);
int netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter,
ulong off, void *data, int len);
int netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
u64 off, void *data, int size);
int netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
u64 off, void *data, int size);
void netxen_crb_writelit_adapter(struct netxen_adapter *adapter,
unsigned long off, int data);
int netxen_nic_pci_write_immediate_2M(struct netxen_adapter *adapter,
u64 off, u32 data);
u32 netxen_nic_pci_read_immediate_2M(struct netxen_adapter *adapter, u64 off);
void netxen_nic_pci_write_normalize_2M(struct netxen_adapter *adapter,
u64 off, u32 data);
u32 netxen_nic_pci_read_normalize_2M(struct netxen_adapter *adapter, u64 off);
unsigned long netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
unsigned long long addr);

/* Functions from netxen_nic_init.c */
void netxen_free_adapter_offload(struct netxen_adapter *adapter);
Expand Down Expand Up @@ -1129,7 +1181,7 @@ dma_watchdog_shutdown_request(struct netxen_adapter *adapter)
u32 ctrl;

/* check if already inactive */
if (netxen_nic_hw_read_wx(adapter,
if (adapter->hw_read_wx(adapter,
NETXEN_CAM_RAM(NETXEN_CAM_RAM_DMA_WATCHDOG_CTRL), &ctrl, 4))
printk(KERN_ERR "failed to read dma watchdog status\n");

Expand All @@ -1149,7 +1201,7 @@ dma_watchdog_shutdown_poll_result(struct netxen_adapter *adapter)
{
u32 ctrl;

if (netxen_nic_hw_read_wx(adapter,
if (adapter->hw_read_wx(adapter,
NETXEN_CAM_RAM(NETXEN_CAM_RAM_DMA_WATCHDOG_CTRL), &ctrl, 4))
printk(KERN_ERR "failed to read dma watchdog status\n");

Expand All @@ -1161,7 +1213,7 @@ dma_watchdog_wakeup(struct netxen_adapter *adapter)
{
u32 ctrl;

if (netxen_nic_hw_read_wx(adapter,
if (adapter->hw_read_wx(adapter,
NETXEN_CAM_RAM(NETXEN_CAM_RAM_DMA_WATCHDOG_CTRL), &ctrl, 4))
printk(KERN_ERR "failed to read dma watchdog status\n");

Expand Down
31 changes: 17 additions & 14 deletions drivers/net/netxen/netxen_nic_ethtool.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -93,17 +93,21 @@ static void
netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
struct netxen_adapter *adapter = netdev_priv(dev);
unsigned long flags;
u32 fw_major = 0;
u32 fw_minor = 0;
u32 fw_build = 0;

strncpy(drvinfo->driver, netxen_nic_driver_name, 32);
strncpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID, 32);
fw_major = readl(NETXEN_CRB_NORMALIZE(adapter,
NETXEN_FW_VERSION_MAJOR));
fw_minor = readl(NETXEN_CRB_NORMALIZE(adapter,
NETXEN_FW_VERSION_MINOR));
fw_build = readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_FW_VERSION_SUB));
write_lock_irqsave(&adapter->adapter_lock, flags);
fw_major = adapter->pci_read_normalize(adapter,
NETXEN_FW_VERSION_MAJOR);
fw_minor = adapter->pci_read_normalize(adapter,
NETXEN_FW_VERSION_MINOR);
fw_build = adapter->pci_read_normalize(adapter,
NETXEN_FW_VERSION_SUB);
write_unlock_irqrestore(&adapter->adapter_lock, flags);
sprintf(drvinfo->fw_version, "%d.%d.%d", fw_major, fw_minor, fw_build);

strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
Expand Down Expand Up @@ -361,19 +365,18 @@ netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
{
struct netxen_adapter *adapter = netdev_priv(dev);
__u32 mode, *regs_buff = p;
void __iomem *addr;
int i, window;

memset(p, 0, NETXEN_NIC_REGS_LEN);
regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
(adapter->pdev)->device;
/* which mode */
NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_MODE, &regs_buff[0]);
adapter->hw_read_wx(adapter, NETXEN_NIU_MODE, &regs_buff[0], 4);
mode = regs_buff[0];

/* Common registers to all the modes */
NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_STRAP_VALUE_SAVE_HIGHER,
&regs_buff[2]);
adapter->hw_read_wx(adapter,
NETXEN_NIU_STRAP_VALUE_SAVE_HIGHER, &regs_buff[2], 4);
/* GB/XGB Mode */
mode = (mode / 2) - 1;
window = 0;
Expand All @@ -384,9 +387,9 @@ netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
window = adapter->physical_port *
NETXEN_NIC_PORT_WINDOW;

NETXEN_NIC_LOCKED_READ_REG(niu_registers[mode].
reg[i - 3] + window,
&regs_buff[i]);
adapter->hw_read_wx(adapter,
niu_registers[mode].reg[i - 3] + window,
&regs_buff[i], 4);
}

}
Expand All @@ -410,7 +413,7 @@ static u32 netxen_nic_test_link(struct net_device *dev)
return !val;
}
} else if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
val = adapter->pci_read_normalize(adapter, CRB_XG_STATE);
return (val == XG_LINK_UP) ? 0 : 1;
}
return -EIO;
Expand Down Expand Up @@ -668,7 +671,7 @@ static int netxen_nic_reg_test(struct net_device *dev)
data_written = (u32)0xa5a5a5a5;

netxen_nic_reg_write(adapter, CRB_SCRATCHPAD_TEST, data_written);
data_read = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_SCRATCHPAD_TEST));
data_read = adapter->pci_read_normalize(adapter, CRB_SCRATCHPAD_TEST);
if (data_written != data_read)
return 1;

Expand Down
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