diff options
Diffstat (limited to 'drivers/net/cassini.c')
| -rw-r--r-- | drivers/net/cassini.c | 68 |
1 files changed, 61 insertions, 7 deletions
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 83768df..86909cf 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -74,6 +74,7 @@ #include <linux/slab.h> #include <linux/delay.h> #include <linux/init.h> +#include <linux/vmalloc.h> #include <linux/ioport.h> #include <linux/pci.h> #include <linux/mm.h> @@ -91,6 +92,7 @@ #include <linux/ip.h> #include <linux/tcp.h> #include <linux/mutex.h> +#include <linux/firmware.h> #include <net/checksum.h> @@ -197,6 +199,7 @@ static int link_mode; MODULE_AUTHOR("Adrian Sun (asun@darksunrising.com)"); MODULE_DESCRIPTION("Sun Cassini(+) ethernet driver"); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("sun/cassini.bin"); module_param(cassini_debug, int, 0); MODULE_PARM_DESC(cassini_debug, "Cassini bitmapped debugging message enable value"); module_param(link_mode, int, 0); @@ -576,6 +579,18 @@ static void cas_spare_recover(struct cas *cp, const gfp_t flags) list_for_each_safe(elem, tmp, &list) { cas_page_t *page = list_entry(elem, cas_page_t, list); + /* + * With the lockless pagecache, cassini buffering scheme gets + * slightly less accurate: we might find that a page has an + * elevated reference count here, due to a speculative ref, + * and skip it as in-use. Ideally we would be able to reclaim + * it. However this would be such a rare case, it doesn't + * matter too much as we should pick it up the next time round. + * + * Importantly, if we find that the page has a refcount of 1 + * here (our refcount), then we know it is definitely not inuse + * so we can reuse it. + */ if (page_count(page->buffer) > 1) continue; @@ -800,9 +815,44 @@ static int cas_reset_mii_phy(struct cas *cp) return (limit <= 0); } +static int cas_saturn_firmware_init(struct cas *cp) +{ + const struct firmware *fw; + const char fw_name[] = "sun/cassini.bin"; + int err; + + if (PHY_NS_DP83065 != cp->phy_id) + return 0; + + err = request_firmware(&fw, fw_name, &cp->pdev->dev); + if (err) { + printk(KERN_ERR "cassini: Failed to load firmware \"%s\"\n", + fw_name); + return err; + } + if (fw->size < 2) { + printk(KERN_ERR "cassini: bogus length %zu in \"%s\"\n", + fw->size, fw_name); + err = -EINVAL; + goto out; + } + cp->fw_load_addr= fw->data[1] << 8 | fw->data[0]; + cp->fw_size = fw->size - 2; + cp->fw_data = vmalloc(cp->fw_size); + if (!cp->fw_data) { + err = -ENOMEM; + printk(KERN_ERR "cassini: \"%s\" Failed %d\n", fw_name, err); + goto out; + } + memcpy(cp->fw_data, &fw->data[2], cp->fw_size); +out: + release_firmware(fw); + return err; +} + static void cas_saturn_firmware_load(struct cas *cp) { - cas_saturn_patch_t *patch = cas_saturn_patch; + int i; cas_phy_powerdown(cp); @@ -821,11 +871,9 @@ static void cas_saturn_firmware_load(struct cas *cp) /* download new firmware */ cas_phy_write(cp, DP83065_MII_MEM, 0x1); - cas_phy_write(cp, DP83065_MII_REGE, patch->addr); - while (patch->addr) { - cas_phy_write(cp, DP83065_MII_REGD, patch->val); - patch++; - } + cas_phy_write(cp, DP83065_MII_REGE, cp->fw_load_addr); + for (i = 0; i < cp->fw_size; i++) + cas_phy_write(cp, DP83065_MII_REGD, cp->fw_data[i]); /* enable firmware */ cas_phy_write(cp, DP83065_MII_REGE, 0x8ff8); @@ -2170,7 +2218,7 @@ static inline void cas_rx_flow_pkt(struct cas *cp, const u64 *words, * do any additional locking here. stick the buffer * at the end. */ - __skb_insert(skb, flow->prev, (struct sk_buff *) flow, flow); + __skb_queue_tail(flow, skb); if (words[0] & RX_COMP1_RELEASE_FLOW) { while ((skb = __skb_dequeue(flow))) { cas_skb_release(skb); @@ -5096,6 +5144,9 @@ static int __devinit cas_init_one(struct pci_dev *pdev, cas_reset(cp, 0); if (cas_check_invariants(cp)) goto err_out_iounmap; + if (cp->cas_flags & CAS_FLAG_SATURN) + if (cas_saturn_firmware_init(cp)) + goto err_out_iounmap; cp->init_block = (struct cas_init_block *) pci_alloc_consistent(pdev, sizeof(struct cas_init_block), @@ -5205,6 +5256,9 @@ static void __devexit cas_remove_one(struct pci_dev *pdev) cp = netdev_priv(dev); unregister_netdev(dev); + if (cp->fw_data) + vfree(cp->fw_data); + mutex_lock(&cp->pm_mutex); flush_scheduled_work(); if (cp->hw_running) |
