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Commit 2f4734ea authored by Jeff Garzik's avatar Jeff Garzik
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Merge redhat.com:/garz/repo/linus-2.5 

into redhat.com:/garz/repo/net-drivers-2.5
parents 6f06499b 90447fbb
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Showing with 73 additions and 57 deletions
drivers/net/rclanmtl.c
View file @ 2f4734ea
......@@ -301,13 +301,13 @@ RCInitI2OMsgLayer (struct net_device *dev,
PPAB pPab;
U32 pciBaseAddr = dev->base_addr;
PDPA pDpa = dev->priv;
PU8 p_msgbuf = pDpa->PLanApiPA;
PU8 p_phymsgbuf = (PU8) virt_to_bus ((void *) p_msgbuf);
PU8 p_msgbuf = pDpa->msgbuf;
PU8 p_phymsgbuf = (PU8) pDpa->msgbuf_dma;
dprintk
("InitI2O: Adapter:0x%04ux ATU:0x%08ulx msgbuf:0x%08ulx phymsgbuf:0x%08ulx\n"
("InitI2O: Adapter:0x%04ux ATU:0x%08ulx msgbuf:%p phymsgbuf:0x%08ulx\n"
"TransmitCallbackFunction:0x%08ulx ReceiveCallbackFunction:0x%08ulx\n",
pDpa->id, pciBaseAddr, (u32) p_msgbuf, (u32) p_phymsgbuf,
pDpa->id, pciBaseAddr, p_msgbuf, (u32) p_phymsgbuf,
(u32) TransmitCallbackFunction, (u32) ReceiveCallbackFunction);
/* Check if this interface already initialized - if so, shut it down */
......@@ -445,7 +445,7 @@ RCI2OSendPacket (struct net_device * dev, U32 InitiatorContext,
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
size = FillI2OMsgSGLFromTCB (pMsg + 4, pTransCtrlBlock);
......@@ -502,7 +502,7 @@ RCPostRecvBuffers (struct net_device * dev, PRCTCB pTransCtrlBlock)
dprintk ("RCPostRecvBuffers(): Inbound Free Q empty!\n");
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
size = FillI2OMsgSGLFromTCB (pMsg + 4, pTransCtrlBlock);
......@@ -677,7 +677,7 @@ RCGetLinkStatistics (struct net_device *dev,
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
/*dprintk("Get82558Stats - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n", pMsg, msgOffset);*/
......@@ -751,7 +751,7 @@ RCGetLinkStatus (struct net_device * dev, PU32 ReturnAddr,
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
/*dprintk("Get82558LinkStatus - pMsg = 0x%08ulx, InQ msgOffset = 0x%08ulx\n", pMsg, msgOffset);*/
/*dprintk("Get82558LinkStatus - pMsg = 0x%08X, InQ msgOffset = 0x%08X\n", pMsg, msgOffset);*/
......@@ -1452,7 +1452,7 @@ RCResetIOP (struct net_device * dev)
pMsg[7] = 0;
pMsg[8] = 1; /* return 1 byte */
/* virual pointer to return buffer - clear first two dwords */
/* virtual pointer to return buffer - clear first two dwords */
p32 = (volatile PU32) pPab->pLinOutMsgBlock;
p32[0] = 0;
p32[1] = 0;
......@@ -1693,7 +1693,7 @@ SendI2OOutboundQInitMsg (PPAB pPab)
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
dprintk
......@@ -1711,7 +1711,7 @@ SendI2OOutboundQInitMsg (PPAB pPab)
/* phys address to return status - area right after PAB */
pMsg[7] = pPab->outMsgBlockPhyAddr;
/* virual pointer to return buffer - clear first two dwords */
/* virtual pointer to return buffer - clear first two dwords */
p32 = (PU32) pPab->pLinOutMsgBlock;
p32[0] = 0;
......@@ -1779,7 +1779,7 @@ GetI2OStatus (PPAB pPab)
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
pMsg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_0;
......@@ -1793,7 +1793,7 @@ GetI2OStatus (PPAB pPab)
pMsg[7] = 0;
pMsg[8] = 88; /* return 88 bytes */
/* virual pointer to return buffer - clear first two dwords */
/* virtual pointer to return buffer - clear first two dwords */
p32 = (volatile PU32) pPab->pLinOutMsgBlock;
p32[0] = 0;
p32[1] = 0;
......@@ -1862,7 +1862,7 @@ SendEnableSysMsg (PPAB pPab)
return RC_RTN_FREE_Q_EMPTY;
}
/* calc virual address of msg - virual already mapped to physical */
/* calc virtual address of msg - virtual already mapped to physical */
pMsg = (PU32) (pPab->pPci45LinBaseAddr + msgOffset);
dprintk
......@@ -1885,7 +1885,7 @@ SendEnableSysMsg (PPAB pPab)
** =========================================================================
** FillI2OMsgFromTCB()
**
** inputs pMsgU32 - virual pointer (mapped to physical) of message frame
** inputs pMsgU32 - virtual pointer (mapped to physical) of message frame
** pXmitCntrlBlock - pointer to caller buffer control block.
**
** fills in LAN SGL after Transaction Control Word or Bucket Count.
......
drivers/net/rclanmtl.h
View file @ 2f4734ea
......@@ -182,6 +182,7 @@ typedef struct {
U32 pci_addr; /* the pci address of the adapter */
U32 pci_addr_len;
struct pci_dev *pci_dev;
struct timer_list timer; /* timer */
struct net_device_stats stats; /* the statistics structure */
unsigned long numOutRcvBuffers; /* number of outstanding receive buffers */
......@@ -189,7 +190,7 @@ typedef struct {
unsigned char reboot;
unsigned char nexus;
PU8 msgbuf; /* Pointer to Lan Api Private Area */
PU8 PLanApiPA; /* Pointer to Lan Api Private Area (aligned) */
dma_addr_t msgbuf_dma;
PPAB pPab; /* Pointer to the PCI Adapter Block */
} *PDPA;
......
drivers/net/rcpci45.c
View file @ 2f4734ea
......@@ -29,6 +29,8 @@
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
** Francois Romieu, Apr 2003: Converted to pci DMA mapping API.
**
** Pete Popov, Oct 2001: Fixed a few bugs to make the driver functional
** again. Note that this card is not supported or manufactured by
** RedCreek anymore.
......@@ -47,8 +49,6 @@
**
***************************************************************************/
#error Please convert me to Documentation/DMA-mapping.txt
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
......@@ -66,7 +66,7 @@
#include <asm/uaccess.h>
static char version[] __initdata =
"RedCreek Communications PCI linux driver version 2.20\n";
"RedCreek Communications PCI linux driver version 2.21\n";
#define RC_LINUX_MODULE
#include "rclanmtl.h"
......@@ -95,6 +95,12 @@ static char version[] __initdata =
*/
#define MSG_BUF_SIZE 16384
/* 2003/04/20: I don't know about the hardware ability but the driver won't
* play safe with 64 bit addressing and DAC without NETIF_F_HIGHDMA doesn't
* really make sense anyway. Let's play safe - romieu.
*/
#define RCPCI45_DMA_MASK ((u64) 0xffffffff)
static U32 DriverControlWord;
static void rc_timer (unsigned long);
......@@ -136,8 +142,8 @@ rcpci45_remove_one (struct pci_dev *pdev)
free_irq (dev->irq, dev);
iounmap ((void *) dev->base_addr);
pci_release_regions (pdev);
if (pDpa->msgbuf)
kfree (pDpa->msgbuf);
pci_free_consistent (pdev, MSG_BUF_SIZE, pDpa->msgbuf,
pDpa->msgbuf_dma);
if (pDpa->pPab)
kfree (pDpa->pPab);
kfree (dev);
......@@ -172,6 +178,7 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
error = -ENOMEM;
goto err_out;
}
SET_MODULE_OWNER(dev);
error = pci_enable_device (pdev);
if (error) {
......@@ -180,7 +187,6 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
card_idx);
goto err_out;
}
error = -ENOMEM;
pci_start = pci_resource_start (pdev, 0);
pci_len = pci_resource_len (pdev, 0);
printk("pci_start %lx pci_len %lx\n", pci_start, pci_len);
......@@ -189,6 +195,7 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
pDpa = dev->priv;
pDpa->id = card_idx;
pDpa->pci_dev = pdev;
pDpa->pci_addr = pci_start;
if (!pci_start || !(pci_resource_flags (pdev, 0) & IORESOURCE_MEM)) {
......@@ -200,24 +207,21 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
/*
* pDpa->msgbuf is where the card will dma the I2O
* messages. Thus, we need contiguous physical pages of
* memory.
* messages. Thus, we need contiguous physical pages of memory.
* 2003/04/20: pci_alloc_consistent() provides well over the needed
* alignment on a 256 bytes boundary for the LAN API private area.
* Thus it isn't needed anymore to align it by hand.
*/
pDpa->msgbuf = kmalloc (MSG_BUF_SIZE, GFP_DMA | GFP_KERNEL);
pDpa->msgbuf = pci_alloc_consistent (pdev, MSG_BUF_SIZE,
&pDpa->msgbuf_dma);
if (!pDpa->msgbuf) {
printk (KERN_ERR "(rcpci45 driver:) \
Could not allocate %d byte memory for the \
private msgbuf!\n", MSG_BUF_SIZE);
error = -ENOMEM;
goto err_out_free_dev;
}
/*
* Save the starting address of the LAN API private area. We'll
* pass that to RCInitI2OMsgLayer().
*
*/
pDpa->PLanApiPA = (void *) (((long) pDpa->msgbuf + 0xff) & ~0xff);
/* The adapter is accessible through memory-access read/write, not
* I/O read/write. Thus, we need to map it to some virtual address
* area in order to access the registers as normal memory.
......@@ -226,12 +230,20 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (error)
goto err_out_free_msgbuf;
error = pci_set_dma_mask (pdev, RCPCI45_DMA_MASK);
if (error) {
printk (KERN_ERR
"(rcpci45 driver:) pci_set_dma_mask failed!\n");
goto err_out_free_region;
}
vaddr = (ulong *) ioremap (pci_start, pci_len);
if (!vaddr) {
printk (KERN_ERR
"(rcpci45 driver:) \
Unable to remap address range from %lu to %lu\n",
pci_start, pci_start + pci_len);
error = -EIO;
goto err_out_free_region;
}
......@@ -249,13 +261,14 @@ rcpci45_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
err_out_free_region:
pci_release_regions (pdev);
err_out_free_msgbuf:
kfree (pDpa->msgbuf);
pci_free_consistent (pdev, MSG_BUF_SIZE, pDpa->msgbuf,
pDpa->msgbuf_dma);
err_out_free_dev:
unregister_netdev (dev);
kfree (dev);
err_out:
card_idx--;
return -ENODEV;
return error;
}
static struct pci_driver rcpci45_driver = {
......@@ -283,7 +296,6 @@ RCopen (struct net_device *dev)
int requested = 0;
int error;
MOD_INC_USE_COUNT;
if (pDpa->nexus) {
/* This is not the first time RCopen is called. Thus,
* the interface was previously opened and later closed
......@@ -365,7 +377,6 @@ RCopen (struct net_device *dev)
err_out_free_irq:
free_irq (dev->irq, dev);
err_out:
MOD_DEC_USE_COUNT;
return error;
}
......@@ -402,7 +413,8 @@ RC_xmit_packet (struct sk_buff *skb, struct net_device *dev)
ptcb->b.context = (U32) skb;
ptcb->b.scount = 1;
ptcb->b.size = skb->len;
ptcb->b.addr = virt_to_bus ((void *) skb->data);
ptcb->b.addr = pci_map_single(pDpa->pci_dev, skb->data, skb->len,
PCI_DMA_TODEVICE);
if ((status = RCI2OSendPacket (dev, (U32) NULL, (PRCTCB) ptcb))
!= RC_RTN_NO_ERROR) {
......@@ -451,6 +463,8 @@ RCxmit_callback (U32 Status,
while (PcktCount--) {
skb = (struct sk_buff *) (BufferContext[0]);
BufferContext++;
pci_unmap_single(pDpa->pci_dev, BufferContext[1], skb->len,
PCI_DMA_TODEVICE);
dev_kfree_skb_irq (skb);
}
netif_wake_queue (dev);
......@@ -706,6 +720,7 @@ rc_timer (unsigned long data)
RCDisableI2OInterrupts (dev);
dev->flags &= ~IFF_UP;
MOD_DEC_USE_COUNT;
/* FIXME: kill MOD_DEC_USE_COUNT, use dev_put */
} else {
printk (KERN_INFO "%s: rescheduling timer...\n",
dev->name);
......@@ -731,7 +746,6 @@ RCclose (struct net_device *dev)
printk (KERN_INFO "%s skipping reset -- adapter already in reboot mode\n", dev->name);
dev->flags &= ~IFF_UP;
pDpa->shutdown = 1;
MOD_DEC_USE_COUNT;
return 0;
}
......@@ -749,7 +763,6 @@ RCclose (struct net_device *dev)
(PFNCALLBACK) RCreset_callback);
dev->flags &= ~IFF_UP;
MOD_DEC_USE_COUNT;
return 0;
}
......@@ -984,8 +997,9 @@ RC_allocate_and_post_buffers (struct net_device *dev, int numBuffers)
PU32 p;
psingleB pB;
struct sk_buff *skb;
PDPA pDpa = dev->priv;
RC_RETURN status;
U32 res;
U32 res = 0;
if (!numBuffers)
return 0;
......@@ -1001,7 +1015,7 @@ RC_allocate_and_post_buffers (struct net_device *dev, int numBuffers)
if (!p) {
printk (KERN_WARNING "%s unable to allocate TCB\n",
dev->name);
return 0;
goto out;
}
p[0] = 0; /* Buffer Count */
......@@ -1013,18 +1027,14 @@ RC_allocate_and_post_buffers (struct net_device *dev, int numBuffers)
printk (KERN_WARNING
"%s: unable to allocate enough skbs!\n",
dev->name);
if (*p != 0) { /* did we allocate any buffers */
break;
} else {
kfree (p); /* Free the TCB */
return 0;
}
goto err_out_unmap;
}
skb_reserve (skb, 2); /* Align IP on 16 byte boundaries */
pB->context = (U32) skb;
pB->scount = 1; /* segment count */
pB->size = MAX_ETHER_SIZE;
pB->addr = virt_to_bus ((void *) skb->data);
pB->addr = pci_map_single(pDpa->pci_dev, skb->data,
MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
p[0]++;
pB++;
}
......@@ -1032,16 +1042,21 @@ RC_allocate_and_post_buffers (struct net_device *dev, int numBuffers)
if ((status = RCPostRecvBuffers (dev, (PRCTCB) p)) != RC_RTN_NO_ERROR) {
printk (KERN_WARNING "%s: Post buffer failed, error 0x%x\n",
dev->name, status);
/* point to the first buffer */
pB = (psingleB) ((U32) p + sizeof (U32));
while (p[0]) {
skb = (struct sk_buff *) pB->context;
dev_kfree_skb (skb);
p[0]--;
pB++;
}
goto err_out_unmap;
}
out_free:
res = p[0];
kfree (p);
out:
return (res); /* return the number of posted buffers */
err_out_unmap:
for (; p[0] > 0; p[0]--) {
--pB;
skb = (struct sk_buff *) pB->context;
pci_unmap_single(pDpa->pci_dev, pB->addr, MAX_ETHER_SIZE,
PCI_DMA_FROMDEVICE);
dev_kfree_skb (skb);
}
goto out_free;
}
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