Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa...

[pandora-kernel.git] / drivers / net / e100.c

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 3c29a20..929701c 100644 (file)
--- 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);