* Feb 2001 davej PCI enable cleanups.
* 04 Aug 2003 macro Converted to the DMA API.
* 14 Aug 2004 macro Fix device names reported.
+ * 14 Jun 2005 macro Use irqreturn_t.
+ * 23 Oct 2006 macro Big-endian host support.
*/
/* Include files */
/* Version information string should be updated prior to each new release! */
#define DRV_NAME "defxx"
-#define DRV_VERSION "v1.07"
-#define DRV_RELDATE "2004/08/14"
+#define DRV_VERSION "v1.09"
+#define DRV_RELDATE "2006/10/23"
static char version[] __devinitdata =
DRV_NAME ": " DRV_VERSION " " DRV_RELDATE
static void dfx_int_pr_halt_id(DFX_board_t *bp);
static void dfx_int_type_0_process(DFX_board_t *bp);
static void dfx_int_common(struct net_device *dev);
-static void dfx_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t dfx_interrupt(int irq, void *dev_id);
static struct net_device_stats *dfx_ctl_get_stats(struct net_device *dev);
static void dfx_ctl_set_multicast_list(struct net_device *dev);
static struct net_device *root_dfx_eisa_dev;
-\f
+
/*
* =======================
* = dfx_port_write_byte =
* = dfx_port_write_long =
* = dfx_port_read_long =
* =======================
- *
+ *
* Overview:
* Routines for reading and writing values from/to adapter
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
* offset - register offset from base I/O address
* Functional Description:
* These routines perform the correct operation to read or write
* the adapter register.
- *
+ *
* EISA port block base addresses are based on the slot number in which the
* controller is installed. For example, if the EISA controller is installed
* in slot 4, the port block base address is 0x4000. If the controller is
*data = inl(port);
}
-\f
+
/*
* =============
* = dfx_init_one_pci_or_eisa =
* =============
- *
+ *
* Overview:
* Initializes a supported FDDI EISA or PCI controller
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* pdev - pointer to pci device information (NULL for EISA)
* ioaddr - pointer to port (NULL for PCI)
}
if (pdev != NULL)
- print_name = pdev->slot_name;
+ print_name = pci_name(pdev);
dev = alloc_fddidev(sizeof(*bp));
if (!dev) {
}
SET_MODULE_OWNER(dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
+ if (pdev != NULL)
+ SET_NETDEV_DEV(dev, &pdev->dev);
bp = dev->priv;
}
return rc;
}
-\f
+
/*
* ================
* = dfx_bus_init =
* ================
- *
+ *
* Overview:
* Initializes EISA and PCI controller bus-specific logic.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* dev - pointer to device information
*
}
}
-\f
+
/*
* ========================
* = dfx_bus_config_check =
* ========================
- *
+ *
* Overview:
* Checks the configuration (burst size, full-duplex, etc.) If any parameters
* are illegal, then this routine will set new defaults.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
}
}
-\f
+
/*
* ===================
* = dfx_driver_init =
* ===================
- *
+ *
* Overview:
* Initializes remaining adapter board structure information
* and makes sure adapter is in a safe state prior to dfx_open().
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* dev - pointer to device information
* print_name - printable device name
print_name);
return(DFX_K_FAILURE);
}
+ data = cpu_to_le32(data);
memcpy(&bp->factory_mac_addr[0], &data, sizeof(u32));
if (dfx_hw_port_ctrl_req(bp, PI_PCTRL_M_MLA, PI_PDATA_A_MLA_K_HI, 0,
print_name);
return(DFX_K_FAILURE);
}
+ data = cpu_to_le32(data);
memcpy(&bp->factory_mac_addr[4], &data, sizeof(u16));
/*
return(DFX_K_SUCCESS);
}
-\f
+
/*
* =================
* = dfx_adap_init =
* =================
- *
+ *
* Overview:
* Brings the adapter to the link avail/link unavailable state.
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* bp - pointer to board information
* get_buffers - non-zero if buffers to be allocated
}
/*
- * Set base address of Descriptor Block and bring adapter to DMA_AVAILABLE state
+ * Set the base address of Descriptor Block and bring adapter
+ * to DMA_AVAILABLE state.
*
- * Note: We also set the literal and data swapping requirements in this
- * command. Since this driver presently runs on Intel platforms
- * which are Little Endian, we'll tell the adapter to byte swap
- * data only. This code will need to change when we support
- * Big Endian systems (eg. PowerPC).
+ * Note: We also set the literal and data swapping requirements
+ * in this command.
*
- * Assumption: 32-bit physical address of descriptor block is 8Kbyte
- * aligned. That is, bits 0-12 of the address must be zero.
+ * Assumption: 32-bit physical address of descriptor block
+ * is 8Kbyte aligned.
*/
-
- if (dfx_hw_port_ctrl_req(bp,
- PI_PCTRL_M_INIT,
- (u32) (bp->descr_block_phys | PI_PDATA_A_INIT_M_BSWAP_DATA),
- 0,
- NULL) != DFX_K_SUCCESS)
- {
- printk("%s: Could not set descriptor block address!\n", bp->dev->name);
- return(DFX_K_FAILURE);
- }
+ if (dfx_hw_port_ctrl_req(bp, PI_PCTRL_M_INIT,
+ (u32)(bp->descr_block_phys |
+ PI_PDATA_A_INIT_M_BSWAP_INIT),
+ 0, NULL) != DFX_K_SUCCESS) {
+ printk("%s: Could not set descriptor block address!\n",
+ bp->dev->name);
+ return DFX_K_FAILURE;
+ }
/* Set transmit flush timeout value */
return(DFX_K_SUCCESS);
}
-\f
+
/*
* ============
* = dfx_open =
* ============
- *
+ *
* Overview:
* Opens the adapter
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* dev - pointer to device information
*
DFX_board_t *bp = dev->priv;
DBG_printk("In dfx_open...\n");
-
+
/* Register IRQ - support shared interrupts by passing device ptr */
- ret = request_irq(dev->irq, (void *)dfx_interrupt, SA_SHIRQ, dev->name, dev);
+ ret = request_irq(dev->irq, dfx_interrupt, IRQF_SHARED, dev->name, dev);
if (ret) {
printk(KERN_ERR "%s: Requested IRQ %d is busy\n", dev->name, dev->irq);
return ret;
return(0);
}
-\f
+
/*
* =============
* = dfx_close =
* =============
- *
+ *
* Overview:
* Closes the device/module.
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* dev - pointer to device information
*
/* Clear device structure flags */
netif_stop_queue(dev);
-
+
/* Deregister (free) IRQ */
free_irq(dev->irq, dev);
-
+
return(0);
}
-\f
+
/*
* ======================
* = dfx_int_pr_halt_id =
* ======================
- *
+ *
* Overview:
* Displays halt id's in string form.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
}
}
-\f
+
/*
* ==========================
* = dfx_int_type_0_process =
* ==========================
- *
+ *
* Overview:
* Processes Type 0 interrupts.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
/* Check for adapter state change */
if (type_0_status & PI_TYPE_0_STAT_M_STATE_CHANGE)
- {
+ {
/* Get latest adapter state */
state = dfx_hw_adap_state_rd(bp); /* get adapter state */
}
}
-\f
+
/*
* ==================
* = dfx_int_common =
* ==================
- *
+ *
* Overview:
* Interrupt service routine (ISR)
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
dfx_int_type_0_process(bp); /* process Type 0 interrupts */
}
-\f
+
/*
* =================
* = dfx_interrupt =
* =================
- *
+ *
* Overview:
* Interrupt processing routine
- *
+ *
* Returns:
- * None
- *
+ * Whether a valid interrupt was seen.
+ *
* Arguments:
* irq - interrupt vector
* dev_id - pointer to device information
- * regs - pointer to registers structure
*
* Functional Description:
* This routine calls the interrupt processing routine for this adapter. It
* structure context.
*
* Return Codes:
- * None
+ * IRQ_HANDLED - an IRQ was handled.
+ * IRQ_NONE - no IRQ was handled.
*
* Assumptions:
* The interrupt acknowledgement at the hardware level (eg. ACKing the PIC
* Interrupts are disabled, then reenabled at the adapter.
*/
-static void dfx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
+static irqreturn_t dfx_interrupt(int irq, void *dev_id)
+{
struct net_device *dev = dev_id;
DFX_board_t *bp; /* private board structure pointer */
- u8 tmp; /* used for disabling/enabling ints */
/* Get board pointer only if device structure is valid */
bp = dev->priv;
- spin_lock(&bp->lock);
-
/* See if we're already servicing an interrupt */
/* Service adapter interrupts */
- if (bp->bus_type == DFX_BUS_TYPE_PCI)
- {
- /* Disable PDQ-PFI interrupts at PFI */
+ if (bp->bus_type == DFX_BUS_TYPE_PCI) {
+ u32 status;
- dfx_port_write_long(bp, PFI_K_REG_MODE_CTRL, PFI_MODE_M_DMA_ENB);
+ dfx_port_read_long(bp, PFI_K_REG_STATUS, &status);
+ if (!(status & PFI_STATUS_M_PDQ_INT))
+ return IRQ_NONE;
- /* Call interrupt service routine for this adapter */
+ spin_lock(&bp->lock);
+
+ /* Disable PDQ-PFI interrupts at PFI */
+ dfx_port_write_long(bp, PFI_K_REG_MODE_CTRL,
+ PFI_MODE_M_DMA_ENB);
+ /* Call interrupt service routine for this adapter */
dfx_int_common(dev);
/* Clear PDQ interrupt status bit and reenable interrupts */
-
- dfx_port_write_long(bp, PFI_K_REG_STATUS, PFI_STATUS_M_PDQ_INT);
+ dfx_port_write_long(bp, PFI_K_REG_STATUS,
+ PFI_STATUS_M_PDQ_INT);
dfx_port_write_long(bp, PFI_K_REG_MODE_CTRL,
- (PFI_MODE_M_PDQ_INT_ENB + PFI_MODE_M_DMA_ENB));
- }
- else
- {
- /* Disable interrupts at the ESIC */
+ (PFI_MODE_M_PDQ_INT_ENB |
+ PFI_MODE_M_DMA_ENB));
- dfx_port_read_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, &tmp);
- tmp &= ~PI_CONFIG_STAT_0_M_INT_ENB;
- dfx_port_write_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, tmp);
+ spin_unlock(&bp->lock);
+ } else {
+ u8 status;
- /* Call interrupt service routine for this adapter */
+ dfx_port_read_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, &status);
+ if (!(status & PI_CONFIG_STAT_0_M_PEND))
+ return IRQ_NONE;
+
+ spin_lock(&bp->lock);
+
+ /* Disable interrupts at the ESIC */
+ status &= ~PI_CONFIG_STAT_0_M_INT_ENB;
+ dfx_port_write_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, status);
+ /* Call interrupt service routine for this adapter */
dfx_int_common(dev);
/* Reenable interrupts at the ESIC */
+ dfx_port_read_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, &status);
+ status |= PI_CONFIG_STAT_0_M_INT_ENB;
+ dfx_port_write_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, status);
- dfx_port_read_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, &tmp);
- tmp |= PI_CONFIG_STAT_0_M_INT_ENB;
- dfx_port_write_byte(bp, PI_ESIC_K_IO_CONFIG_STAT_0, tmp);
- }
-
- spin_unlock(&bp->lock);
+ spin_unlock(&bp->lock);
}
-\f
+ return IRQ_HANDLED;
+}
+
+
/*
* =====================
* = dfx_ctl_get_stats =
* =====================
- *
+ *
* Overview:
* Get statistics for FDDI adapter
- *
+ *
* Returns:
* Pointer to FDDI statistics structure
- *
+ *
* Arguments:
* dev - pointer to device information
*
return((struct net_device_stats *) &bp->stats);
}
-\f
+
/*
* ==============================
* = dfx_ctl_set_multicast_list =
* ==============================
- *
+ *
* Overview:
* Enable/Disable LLC frame promiscuous mode reception
* on the adapter and/or update multicast address table.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* dev - pointer to device information
*
}
}
-\f
+
/*
* ===========================
* = dfx_ctl_set_mac_address =
* ===========================
- *
+ *
* Overview:
* Add node address override (unicast address) to adapter
* CAM and update dev_addr field in device table.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* dev - pointer to device information
* addr - pointer to sockaddr structure containing unicast address to add
return(0); /* always return zero */
}
-\f
+
/*
* ======================
* = dfx_ctl_update_cam =
return(DFX_K_SUCCESS);
}
-\f
+
/*
* ==========================
* = dfx_ctl_update_filters =
* Overview:
* Procedure to update adapter filters with desired
* filter settings.
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* bp - pointer to board information
*
return(DFX_K_SUCCESS);
}
-\f
+
/*
* ======================
* = dfx_hw_dma_cmd_req =
* ======================
- *
+ *
* Overview:
* Sends PDQ DMA command to adapter firmware
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* bp - pointer to board information
*
{
int status; /* adapter status */
int timeout_cnt; /* used in for loops */
-
+
/* Make sure the adapter is in a state that we can issue the DMA command in */
-
+
status = dfx_hw_adap_state_rd(bp);
if ((status == PI_STATE_K_RESET) ||
(status == PI_STATE_K_HALTED) ||
dfx_port_write_long(bp, PI_PDQ_K_REG_CMD_RSP_PROD, bp->cmd_rsp_reg.lword);
/* Put request buffer on the command request queue */
-
+
bp->descr_block_virt->cmd_req[bp->cmd_req_reg.index.prod].long_0 = (u32) (PI_XMT_DESCR_M_SOP |
PI_XMT_DESCR_M_EOP | (PI_CMD_REQ_K_SIZE_MAX << PI_XMT_DESCR_V_SEG_LEN));
bp->descr_block_virt->cmd_req[bp->cmd_req_reg.index.prod].long_1 = bp->cmd_req_phys;
break;
udelay(100); /* wait for 100 microseconds */
}
- if (timeout_cnt == 0)
+ if (timeout_cnt == 0)
return(DFX_K_HW_TIMEOUT);
/* Bump (and wrap) the completion index and write out to register */
break;
udelay(100); /* wait for 100 microseconds */
}
- if (timeout_cnt == 0)
+ if (timeout_cnt == 0)
return(DFX_K_HW_TIMEOUT);
/* Bump (and wrap) the completion index and write out to register */
return(DFX_K_SUCCESS);
}
-\f
+
/*
* ========================
* = dfx_hw_port_ctrl_req =
* ========================
- *
+ *
* Overview:
* Sends PDQ port control command to adapter firmware
- *
+ *
* Returns:
* Host data register value in host_data if ptr is not NULL
- *
+ *
* Arguments:
* bp - pointer to board information
* command - port control command
int timeout_cnt; /* used in for loops */
/* Set Command Error bit in command longword */
-
+
port_cmd = (PI_UINT32) (command | PI_PCTRL_M_CMD_ERROR);
/* Issue port command to the adapter */
break;
udelay(100); /* wait for 100 microseconds */
}
- if (timeout_cnt == 0)
+ if (timeout_cnt == 0)
return(DFX_K_HW_TIMEOUT);
/*
- * If the address of host_data is non-zero, assume caller has supplied a
- * non NULL pointer, and return the contents of the HOST_DATA register in
+ * If the address of host_data is non-zero, assume caller has supplied a
+ * non NULL pointer, and return the contents of the HOST_DATA register in
* it.
*/
return(DFX_K_SUCCESS);
}
-\f
+
/*
* =====================
* = dfx_hw_adap_reset =
* =====================
- *
+ *
* Overview:
* Resets adapter
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
* type - type of reset to perform
dfx_port_write_long(bp, PI_PDQ_K_REG_PORT_RESET, 0);
}
-\f
+
/*
* ========================
* = dfx_hw_adap_state_rd =
* ========================
- *
+ *
* Overview:
* Returns current adapter state
- *
+ *
* Returns:
* Adapter state per PDQ Port Specification
- *
+ *
* Arguments:
* bp - pointer to board information
*
return((port_status & PI_PSTATUS_M_STATE) >> PI_PSTATUS_V_STATE);
}
-\f
+
/*
* =====================
* = dfx_hw_dma_uninit =
* =====================
- *
+ *
* Overview:
* Brings adapter to DMA_UNAVAILABLE state
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* bp - pointer to board information
* type - type of reset to perform
break;
udelay(100); /* wait for 100 microseconds */
}
- if (timeout_cnt == 0)
+ if (timeout_cnt == 0)
return(DFX_K_HW_TIMEOUT);
return(DFX_K_SUCCESS);
}
-\f
+
/*
* Align an sk_buff to a boundary power of 2
*
*/
-
+
static void my_skb_align(struct sk_buff *skb, int n)
{
unsigned long x = (unsigned long)skb->data;
unsigned long v;
-
+
v = ALIGN(x, n); /* Where we want to be */
-
+
skb_reserve(skb, v - x);
}
-\f
+
/*
* ================
* = dfx_rcv_init =
* ================
- *
+ *
* Overview:
* Produces buffers to adapter LLC Host receive descriptor block
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
* get_buffers - non-zero if buffers to be allocated
* align to 128 bytes for compatibility with
* the old EISA boards.
*/
-
+
my_skb_align(newskb, 128);
bp->descr_block_virt->rcv_data[i + j].long_1 =
(u32)pci_map_single(bp->pci_dev, newskb->data,
return 0;
}
-\f
+
/*
* =========================
* = dfx_rcv_queue_process =
* =========================
- *
+ *
* Overview:
* Process received LLC frames.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
newskb = dev_alloc_skb(NEW_SKB_SIZE);
if (newskb){
rx_in_place = 1;
-
+
my_skb_align(newskb, 128);
skb = (struct sk_buff *)bp->p_rcv_buff_va[entry];
pci_unmap_single(bp->pci_dev,
memcpy(skb->data, p_buff + RCV_BUFF_K_PADDING, pkt_len+3);
}
-
+
skb_reserve(skb,3); /* adjust data field so that it points to FC byte */
skb_put(skb, pkt_len); /* pass up packet length, NOT including CRC */
skb->dev = bp->dev; /* pass up device pointer */
}
}
-\f
+
/*
* =====================
* = dfx_xmt_queue_pkt =
* =====================
- *
+ *
* Overview:
* Queues packets for transmission
- *
+ *
* Returns:
* Condition code
- *
+ *
* Arguments:
* skb - pointer to sk_buff to queue for transmission
* dev - pointer to device information
unsigned long flags;
netif_stop_queue(dev);
-
+
/*
* Verify that incoming transmit request is OK
*
if (!IN_RANGE(skb->len, FDDI_K_LLC_ZLEN, FDDI_K_LLC_LEN))
{
- printk("%s: Invalid packet length - %u bytes\n",
+ printk("%s: Invalid packet length - %u bytes\n",
dev->name, skb->len);
bp->xmt_length_errors++; /* bump error counter */
netif_wake_queue(dev);
}
spin_lock_irqsave(&bp->lock, flags);
-
+
/* Get the current producer and the next free xmt data descriptor */
prod = bp->rcv_xmt_reg.index.xmt_prod;
return(0); /* packet queued to adapter */
}
-\f
+
/*
* ================
* = dfx_xmt_done =
* ================
- *
+ *
* Overview:
* Processes all frames that have been transmitted.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
return freed;
}
-\f
+
/*
* =================
* = dfx_rcv_flush =
* =================
- *
+ *
* Overview:
* Remove all skb's in the receive ring.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
* =================
* = dfx_xmt_flush =
* =================
- *
+ *
* Overview:
* Processes all frames whether they've been transmitted
* or not.
- *
+ *
* Returns:
* None
- *
+ *
* Arguments:
* bp - pointer to board information
*
{
int rc_pci, rc_eisa;
- rc_pci = pci_module_init(&dfx_driver);
+ rc_pci = pci_register_driver(&dfx_driver);
if (rc_pci >= 0) dfx_have_pci = 1;
-
+
rc_eisa = dfx_eisa_init();
if (rc_eisa >= 0) dfx_have_eisa = 1;
- return ((rc_eisa < 0) ? 0 : rc_eisa) + ((rc_pci < 0) ? 0 : rc_pci);
+ return ((rc_eisa < 0) ? 0 : rc_eisa) + ((rc_pci < 0) ? 0 : rc_pci);
}
static void __exit dfx_cleanup(void)
pci_unregister_driver(&dfx_driver);
if (dfx_have_eisa)
dfx_eisa_cleanup();
-
-}
+
+}
module_init(dfx_init);
module_exit(dfx_cleanup);
DRV_VERSION " " DRV_RELDATE);
MODULE_LICENSE("GPL");
-\f
+
/*
* Local variables:
* kernel-compile-command: "gcc -D__KERNEL__ -I/root/linux/include -Wall -Wstrict-prototypes -O2 -pipe -fomit-frame-pointer -fno-strength-reduce -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2 -c defxx.c"
git://git.onelab.eu / linux-2.6.git / blobdiff