diff options
Diffstat (limited to 'drivers/net/e100.c')
| -rw-r--r-- | drivers/net/e100.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/drivers/net/e100.c b/drivers/net/e100.c index 3c29a20b751e..929701ca07d3 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -157,6 +157,7 @@ #include <linux/init.h> #include <linux/pci.h> #include <linux/dma-mapping.h> +#include <linux/dmapool.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/mii.h> @@ -602,6 +603,7 @@ struct nic { struct mem *mem; dma_addr_t dma_addr; + struct pci_pool *cbs_pool; dma_addr_t cbs_dma_addr; u8 adaptive_ifs; u8 tx_threshold; @@ -622,6 +624,7 @@ struct nic { u16 eeprom_wc; __le16 eeprom[256]; spinlock_t mdio_lock; + const struct firmware *fw; }; static inline void e100_write_flush(struct nic *nic) @@ -1223,9 +1226,9 @@ static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb) static const struct firmware *e100_request_firmware(struct nic *nic) { const char *fw_name; - const struct firmware *fw; + const struct firmware *fw = nic->fw; u8 timer, bundle, min_size; - int err; + int err = 0; /* do not load u-code for ICH devices */ if (nic->flags & ich) @@ -1241,12 +1244,20 @@ static const struct firmware *e100_request_firmware(struct nic *nic) else /* No ucode on other devices */ return NULL; - err = request_firmware(&fw, fw_name, &nic->pdev->dev); + /* If the firmware has not previously been loaded, request a pointer + * to it. If it was previously loaded, we are reinitializing the + * adapter, possibly in a resume from hibernate, in which case + * request_firmware() cannot be used. + */ + if (!fw) + err = request_firmware(&fw, fw_name, &nic->pdev->dev); + if (err) { DPRINTK(PROBE, ERR, "Failed to load firmware \"%s\": %d\n", fw_name, err); return ERR_PTR(err); } + /* Firmware should be precisely UCODE_SIZE (words) plus three bytes indicating the offsets for BUNDLESMALL, BUNDLEMAX, INTDELAY */ if (fw->size != UCODE_SIZE * 4 + 3) { @@ -1269,7 +1280,10 @@ static const struct firmware *e100_request_firmware(struct nic *nic) release_firmware(fw); return ERR_PTR(-EINVAL); } - /* OK, firmware is validated and ready to use... */ + + /* OK, firmware is validated and ready to use. Save a pointer + * to it in the nic */ + nic->fw = fw; return fw; } @@ -1793,9 +1807,7 @@ static void e100_clean_cbs(struct nic *nic) nic->cb_to_clean = nic->cb_to_clean->next; nic->cbs_avail++; } - pci_free_consistent(nic->pdev, - sizeof(struct cb) * nic->params.cbs.count, - nic->cbs, nic->cbs_dma_addr); + pci_pool_free(nic->cbs_pool, nic->cbs, nic->cbs_dma_addr); nic->cbs = NULL; nic->cbs_avail = 0; } @@ -1813,8 +1825,8 @@ static int e100_alloc_cbs(struct nic *nic) nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = NULL; nic->cbs_avail = 0; - nic->cbs = pci_alloc_consistent(nic->pdev, - sizeof(struct cb) * count, &nic->cbs_dma_addr); + nic->cbs = pci_pool_alloc(nic->cbs_pool, GFP_KERNEL, + &nic->cbs_dma_addr); if (!nic->cbs) return -ENOMEM; @@ -1852,11 +1864,10 @@ static inline void e100_start_receiver(struct nic *nic, struct rx *rx) #define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN) static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx) { - if (!(rx->skb = netdev_alloc_skb(nic->netdev, RFD_BUF_LEN + NET_IP_ALIGN))) + if (!(rx->skb = netdev_alloc_skb_ip_align(nic->netdev, RFD_BUF_LEN))) return -ENOMEM; - /* Align, init, and map the RFD. */ - skb_reserve(rx->skb, NET_IP_ALIGN); + /* Init, and map the RFD. */ skb_copy_to_linear_data(rx->skb, &nic->blank_rfd, sizeof(struct rfd)); rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data, RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); @@ -2841,7 +2852,11 @@ static int __devinit e100_probe(struct pci_dev *pdev, DPRINTK(PROBE, ERR, "Cannot register net device, aborting.\n"); goto err_out_free; } - + nic->cbs_pool = pci_pool_create(netdev->name, + nic->pdev, + nic->params.cbs.count * sizeof(struct cb), + sizeof(u32), + 0); DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, MAC addr %pM\n", (unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0), pdev->irq, netdev->dev_addr); @@ -2871,6 +2886,7 @@ static void __devexit e100_remove(struct pci_dev *pdev) unregister_netdev(netdev); e100_free(nic); pci_iounmap(pdev, nic->csr); + pci_pool_destroy(nic->cbs_pool); free_netdev(netdev); pci_release_regions(pdev); pci_disable_device(pdev); |