SOURCES (LINUX_2_6_20): kernel-bcm43xx-combined_2.6.20.2.patch - s...
mguevara
mguevara at pld-linux.org
Wed Mar 14 00:20:14 CET 2007
Author: mguevara Date: Tue Mar 13 23:20:14 2007 GMT
Module: SOURCES Tag: LINUX_2_6_20
---- Log message:
- some of the changes are applied in 2.6.20.3
---- Files affected:
SOURCES:
kernel-bcm43xx-combined_2.6.20.2.patch (1.1 -> 1.1.2.1)
---- Diffs:
================================================================
Index: SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch
diff -u SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch:1.1 SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch:1.1.2.1
--- SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch:1.1 Sun Mar 11 16:46:24 2007
+++ SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch Wed Mar 14 00:20:09 2007
@@ -72,285 +72,6 @@
dprintk(KERN_INFO PFX "Device resumed.\n");
return 0;
-Index: linux-2.6.20/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
-===================================================================
---- linux-2.6.20.orig/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
-+++ linux-2.6.20/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
-@@ -145,16 +145,14 @@ dma_addr_t map_descbuffer(struct bcm43xx
- int tx)
- {
- dma_addr_t dmaaddr;
-+ int direction = PCI_DMA_FROMDEVICE;
-
-- if (tx) {
-- dmaaddr = dma_map_single(&ring->bcm->pci_dev->dev,
-- buf, len,
-- DMA_TO_DEVICE);
-- } else {
-- dmaaddr = dma_map_single(&ring->bcm->pci_dev->dev,
-+ if (tx)
-+ direction = PCI_DMA_TODEVICE;
-+
-+ dmaaddr = pci_map_single(ring->bcm->pci_dev,
- buf, len,
-- DMA_FROM_DEVICE);
-- }
-+ direction);
-
- return dmaaddr;
- }
-@@ -166,13 +164,13 @@ void unmap_descbuffer(struct bcm43xx_dma
- int tx)
- {
- if (tx) {
-- dma_unmap_single(&ring->bcm->pci_dev->dev,
-+ pci_unmap_single(ring->bcm->pci_dev,
- addr, len,
-- DMA_TO_DEVICE);
-+ PCI_DMA_TODEVICE);
- } else {
-- dma_unmap_single(&ring->bcm->pci_dev->dev,
-+ pci_unmap_single(ring->bcm->pci_dev,
- addr, len,
-- DMA_FROM_DEVICE);
-+ PCI_DMA_FROMDEVICE);
- }
- }
-
-@@ -183,8 +181,8 @@ void sync_descbuffer_for_cpu(struct bcm4
- {
- assert(!ring->tx);
-
-- dma_sync_single_for_cpu(&ring->bcm->pci_dev->dev,
-- addr, len, DMA_FROM_DEVICE);
-+ pci_dma_sync_single_for_cpu(ring->bcm->pci_dev,
-+ addr, len, PCI_DMA_FROMDEVICE);
- }
-
- static inline
-@@ -194,8 +192,8 @@ void sync_descbuffer_for_device(struct b
- {
- assert(!ring->tx);
-
-- dma_sync_single_for_device(&ring->bcm->pci_dev->dev,
-- addr, len, DMA_FROM_DEVICE);
-+ pci_dma_sync_single_for_cpu(ring->bcm->pci_dev,
-+ addr, len, PCI_DMA_TODEVICE);
- }
-
- /* Unmap and free a descriptor buffer. */
-@@ -214,17 +212,53 @@ void free_descriptor_buffer(struct bcm43
-
- static int alloc_ringmemory(struct bcm43xx_dmaring *ring)
- {
-- struct device *dev = &(ring->bcm->pci_dev->dev);
--
-- ring->descbase = dma_alloc_coherent(dev, BCM43xx_DMA_RINGMEMSIZE,
-- &(ring->dmabase), GFP_KERNEL);
-+ ring->descbase = pci_alloc_consistent(ring->bcm->pci_dev, BCM43xx_DMA_RINGMEMSIZE,
-+ &(ring->dmabase));
- if (!ring->descbase) {
-- printk(KERN_ERR PFX "DMA ringmemory allocation failed\n");
-- return -ENOMEM;
-+ /* Allocation may have failed due to pci_alloc_consistent
-+ insisting on use of GFP_DMA, which is more restrictive
-+ than necessary... */
-+ struct dma_desc *rx_ring;
-+ dma_addr_t rx_ring_dma;
-+
-+ rx_ring = kzalloc(BCM43xx_DMA_RINGMEMSIZE, GFP_KERNEL);
-+ if (!rx_ring)
-+ goto out_err;
-+
-+ rx_ring_dma = pci_map_single(ring->bcm->pci_dev, rx_ring,
-+ BCM43xx_DMA_RINGMEMSIZE,
-+ PCI_DMA_BIDIRECTIONAL);
-+
-+ if (pci_dma_mapping_error(rx_ring_dma) ||
-+ rx_ring_dma + BCM43xx_DMA_RINGMEMSIZE > ring->bcm->dma_mask) {
-+ /* Sigh... */
-+ if (!pci_dma_mapping_error(rx_ring_dma))
-+ pci_unmap_single(ring->bcm->pci_dev,
-+ rx_ring_dma, BCM43xx_DMA_RINGMEMSIZE,
-+ PCI_DMA_BIDIRECTIONAL);
-+ rx_ring_dma = pci_map_single(ring->bcm->pci_dev,
-+ rx_ring, BCM43xx_DMA_RINGMEMSIZE,
-+ PCI_DMA_BIDIRECTIONAL);
-+ if (pci_dma_mapping_error(rx_ring_dma) ||
-+ rx_ring_dma + BCM43xx_DMA_RINGMEMSIZE > ring->bcm->dma_mask) {
-+ assert(0);
-+ if (!pci_dma_mapping_error(rx_ring_dma))
-+ pci_unmap_single(ring->bcm->pci_dev,
-+ rx_ring_dma, BCM43xx_DMA_RINGMEMSIZE,
-+ PCI_DMA_BIDIRECTIONAL);
-+ goto out_err;
-+ }
-+ }
-+
-+ ring->descbase = rx_ring;
-+ ring->dmabase = rx_ring_dma;
- }
- memset(ring->descbase, 0, BCM43xx_DMA_RINGMEMSIZE);
-
- return 0;
-+out_err:
-+ printk(KERN_ERR PFX "DMA ringmemory allocation failed\n");
-+ return -ENOMEM;
- }
-
- static void free_ringmemory(struct bcm43xx_dmaring *ring)
-@@ -407,6 +441,29 @@ static int setup_rx_descbuffer(struct bc
- if (unlikely(!skb))
- return -ENOMEM;
- dmaaddr = map_descbuffer(ring, skb->data, ring->rx_buffersize, 0);
-+ /* This hardware bug work-around adapted from the b44 driver.
-+ The chip may be unable to do PCI DMA to/from anything above 1GB */
-+ if (pci_dma_mapping_error(dmaaddr) ||
-+ dmaaddr + ring->rx_buffersize > ring->bcm->dma_mask) {
-+ /* This one has 30-bit addressing... */
-+ if (!pci_dma_mapping_error(dmaaddr))
-+ pci_unmap_single(ring->bcm->pci_dev,
-+ dmaaddr, ring->rx_buffersize,
-+ PCI_DMA_FROMDEVICE);
-+ dev_kfree_skb_any(skb);
-+ skb = __dev_alloc_skb(ring->rx_buffersize,GFP_DMA);
-+ if (skb == NULL)
-+ return -ENOMEM;
-+ dmaaddr = pci_map_single(ring->bcm->pci_dev,
-+ skb->data, ring->rx_buffersize,
-+ PCI_DMA_FROMDEVICE);
-+ if (pci_dma_mapping_error(dmaaddr) ||
-+ dmaaddr + ring->rx_buffersize > ring->bcm->dma_mask) {
-+ assert(0);
-+ dev_kfree_skb_any(skb);
-+ return -ENOMEM;
-+ }
-+ }
- meta->skb = skb;
- meta->dmaaddr = dmaaddr;
- skb->dev = ring->bcm->net_dev;
-@@ -636,8 +693,10 @@ struct bcm43xx_dmaring * bcm43xx_setup_d
- err = dmacontroller_setup(ring);
- if (err)
- goto err_free_ringmemory;
-+ return ring;
-
- out:
-+ printk(KERN_ERR PFX "Error in bcm43xx_setup_dmaring\n");
- return ring;
-
- err_free_ringmemory:
-@@ -705,30 +764,16 @@ int bcm43xx_dma_init(struct bcm43xx_priv
- struct bcm43xx_dmaring *ring;
- int err = -ENOMEM;
- int dma64 = 0;
-- u64 mask = bcm43xx_get_supported_dma_mask(bcm);
-- int nobits;
-
-- if (mask == DMA_64BIT_MASK) {
-+ bcm->dma_mask = bcm43xx_get_supported_dma_mask(bcm);
-+ if (bcm->dma_mask == DMA_64BIT_MASK)
- dma64 = 1;
-- nobits = 64;
-- } else if (mask == DMA_32BIT_MASK)
-- nobits = 32;
-- else
-- nobits = 30;
-- err = pci_set_dma_mask(bcm->pci_dev, mask);
-- err |= pci_set_consistent_dma_mask(bcm->pci_dev, mask);
-- if (err) {
--#ifdef CONFIG_BCM43XX_PIO
-- printk(KERN_WARNING PFX "DMA not supported on this device."
-- " Falling back to PIO.\n");
-- bcm->__using_pio = 1;
-- return -ENOSYS;
--#else
-- printk(KERN_ERR PFX "FATAL: DMA not supported and PIO not configured. "
-- "Please recompile the driver with PIO support.\n");
-- return -ENODEV;
--#endif /* CONFIG_BCM43XX_PIO */
-- }
-+ err = pci_set_dma_mask(bcm->pci_dev, bcm->dma_mask);
-+ if (err)
-+ goto no_dma;
-+ err = pci_set_consistent_dma_mask(bcm->pci_dev, bcm->dma_mask);
-+ if (err)
-+ goto no_dma;
-
- /* setup TX DMA channels. */
- ring = bcm43xx_setup_dmaring(bcm, 0, 1, dma64);
-@@ -774,9 +819,12 @@ int bcm43xx_dma_init(struct bcm43xx_priv
- dma->rx_ring3 = ring;
- }
-
-- dprintk(KERN_INFO PFX "%d-bit DMA initialized\n", nobits);
-+ dprintk(KERN_INFO PFX "%d-bit DMA initialized\n",
-+ (bcm->dma_mask == DMA_64BIT_MASK) ? 64 :
-+ (bcm->dma_mask == DMA_32BIT_MASK) ? 32 : 30);
- err = 0;
- out:
-+ if(err)BUG();
- return err;
-
- err_destroy_rx0:
-@@ -800,7 +848,18 @@ err_destroy_tx1:
- err_destroy_tx0:
- bcm43xx_destroy_dmaring(dma->tx_ring0);
- dma->tx_ring0 = NULL;
-- goto out;
-+no_dma:
-+#ifdef CONFIG_BCM43XX_PIO
-+ printk(KERN_WARNING PFX "DMA not supported on this device."
-+ " Falling back to PIO.\n");
-+ bcm->__using_pio = 1;
-+ BUG();
-+ return -ENOSYS;
-+#else
-+ printk(KERN_ERR PFX "FATAL: DMA not supported and PIO not configured. "
-+ "Please recompile the driver with PIO support.\n");
-+ return -ENODEV;
-+#endif /* CONFIG_BCM43XX_PIO */
- }
-
- /* Generate a cookie for the TX header. */
-@@ -905,6 +964,7 @@ static void dma_tx_fragment(struct bcm43
- struct bcm43xx_dmadesc_generic *desc;
- struct bcm43xx_dmadesc_meta *meta;
- dma_addr_t dmaaddr;
-+ struct sk_buff *bounce_skb;
-
- assert(skb_shinfo(skb)->nr_frags == 0);
-
-@@ -924,9 +984,28 @@ static void dma_tx_fragment(struct bcm43
- skb->len - sizeof(struct bcm43xx_txhdr),
- (cur_frag == 0),
- generate_cookie(ring, slot));
-+ dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
-+ if (dma_mapping_error(dmaaddr) || dmaaddr + skb->len > ring->bcm->dma_mask) {
-+ /* chip cannot handle DMA to/from > 1GB, use bounce buffer (copied from b44 driver) */
-+ if (!dma_mapping_error(dmaaddr))
-+ unmap_descbuffer(ring, dmaaddr, skb->len, 1);
-+ bounce_skb = __dev_alloc_skb(skb->len, GFP_ATOMIC|GFP_DMA);
-+ if (!bounce_skb)
-+ return;
-+ dmaaddr = map_descbuffer(ring, bounce_skb->data, bounce_skb->len, 1);
-+ if (dma_mapping_error(dmaaddr) || dmaaddr + skb->len > ring->bcm->dma_mask) {
-+ if (!dma_mapping_error(dmaaddr))
-+ unmap_descbuffer(ring, dmaaddr, skb->len, 1);
-+ dev_kfree_skb_any(bounce_skb);
-+ assert(0);
-+ return;
-+ }
-+ memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len);
-+ dev_kfree_skb_any(skb);
-+ skb = bounce_skb;
-+ }
-
- meta->skb = skb;
-- dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
- meta->dmaaddr = dmaaddr;
-
- fill_descriptor(ring, desc, dmaaddr,
Index: linux-2.6.20/drivers/net/wireless/bcm43xx/bcm43xx.h
===================================================================
--- linux-2.6.20.orig/drivers/net/wireless/bcm43xx/bcm43xx.h
@@ -373,14 +94,6 @@
u8 type;
u8 rev;
u16 antenna_diversity;
-@@ -766,6 +766,7 @@ struct bcm43xx_private {
- * This is currently always BCM43xx_BUSTYPE_PCI
- */
- u8 bustype;
-+ u64 dma_mask;
-
- u16 board_vendor;
- u16 board_type;
Index: linux-2.6.20/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
===================================================================
--- linux-2.6.20.orig/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
================================================================
---- CVS-web:
http://cvs.pld-linux.org/SOURCES/kernel-bcm43xx-combined_2.6.20.2.patch?r1=1.1&r2=1.1.2.1&f=u
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