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);