Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

1 files changed, 67 insertions, 53 deletions

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 6dcac73b4d29..f593fbbb4e52 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -2874,45 +2874,27 @@ static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
         return 0;
 }
 
-static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
-                                 u32 src_phys, u32 dest_address, u32 length)
+static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address,
+                                 int nr, u32 dest_address, u32 len)
 {
-        u32 bytes_left = length;
-        u32 src_offset = 0;
-        u32 dest_offset = 0;
-        int status = 0;
+        int ret, i;
+        u32 size;
+
         IPW_DEBUG_FW(">> \n");
-        IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
-                          src_phys, dest_address, length);
-        while (bytes_left > CB_MAX_LENGTH) {
-                status = ipw_fw_dma_add_command_block(priv,
-                                                      src_phys + src_offset,
-                                                      dest_address +
-                                                      dest_offset,
-                                                      CB_MAX_LENGTH, 0, 0);
-                if (status) {
+        IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n",
+                          nr, dest_address, len);
+
+        for (i = 0; i < nr; i++) {
+                size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH);
+                ret = ipw_fw_dma_add_command_block(priv, src_address[i],
+                                                   dest_address +
+                                                   i * CB_MAX_LENGTH, size,
+                                                   0, 0);
+                if (ret) {
                         IPW_DEBUG_FW_INFO(": Failed\n");
                         return -1;
                 } else
                         IPW_DEBUG_FW_INFO(": Added new cb\n");
-
-                src_offset += CB_MAX_LENGTH;
-                dest_offset += CB_MAX_LENGTH;
-                bytes_left -= CB_MAX_LENGTH;
-        }
-
-        /* add the buffer tail */
-        if (bytes_left > 0) {
-                status =
-                    ipw_fw_dma_add_command_block(priv, src_phys + src_offset,
-                                                 dest_address + dest_offset,
-                                                 bytes_left, 0, 0);
-                if (status) {
-                        IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
-                        return -1;
-                } else
-                        IPW_DEBUG_FW_INFO
-                            (": Adding new cb - the buffer tail\n");
         }
 
         IPW_DEBUG_FW("<< \n");
@@ -3160,59 +3142,91 @@ static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
 
 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
 {
-        int rc = -1;
+        int ret = -1;
         int offset = 0;
         struct fw_chunk *chunk;
-        dma_addr_t shared_phys;
-        u8 *shared_virt;
+        int total_nr = 0;
+        int i;
+        struct pci_pool *pool;
+        u32 *virts[CB_NUMBER_OF_ELEMENTS_SMALL];
+        dma_addr_t phys[CB_NUMBER_OF_ELEMENTS_SMALL];
 
         IPW_DEBUG_TRACE("<< : \n");
-        shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
 
-        if (!shared_virt)
+        pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0);
+        if (!pool) {
+                IPW_ERROR("pci_pool_create failed\n");
                 return -ENOMEM;
-
-        memmove(shared_virt, data, len);
+        }
 
         /* Start the Dma */
-        rc = ipw_fw_dma_enable(priv);
+        ret = ipw_fw_dma_enable(priv);
 
         /* the DMA is already ready this would be a bug. */
         BUG_ON(priv->sram_desc.last_cb_index > 0);
 
         do {
+                u32 chunk_len;
+                u8 *start;
+                int size;
+                int nr = 0;
+
                 chunk = (struct fw_chunk *)(data + offset);
                 offset += sizeof(struct fw_chunk);
+                chunk_len = le32_to_cpu(chunk->length);
+                start = data + offset;
+
+                nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH;
+                for (i = 0; i < nr; i++) {
+                        virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL,
+                                                         &phys[total_nr]);
+                        if (!virts[total_nr]) {
+                                ret = -ENOMEM;
+                                goto out;
+                        }
+                        size = min_t(u32, chunk_len - i * CB_MAX_LENGTH,
+                                     CB_MAX_LENGTH);
+                        memcpy(virts[total_nr], start, size);
+                        start += size;
+                        total_nr++;
+                        /* We don't support fw chunk larger than 64*8K */
+                        BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL);
+                }
+
                 /* build DMA packet and queue up for sending */
                 /* dma to chunk->address, the chunk->length bytes from data +
                  * offeset*/
                 /* Dma loading */
-                rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
-                                           le32_to_cpu(chunk->address),
-                                           le32_to_cpu(chunk->length));
-                if (rc) {
+                ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr],
+                                            nr, le32_to_cpu(chunk->address),
+                                            chunk_len);
+                if (ret) {
                         IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
                         goto out;
                 }
 
-                offset += le32_to_cpu(chunk->length);
+                offset += chunk_len;
         } while (offset < len);
 
         /* Run the DMA and wait for the answer */
-        rc = ipw_fw_dma_kick(priv);
-        if (rc) {
+        ret = ipw_fw_dma_kick(priv);
+        if (ret) {
                 IPW_ERROR("dmaKick Failed\n");
                 goto out;
         }
 
-        rc = ipw_fw_dma_wait(priv);
-        if (rc) {
+        ret = ipw_fw_dma_wait(priv);
+        if (ret) {
                 IPW_ERROR("dmaWaitSync Failed\n");
                 goto out;
         }
-      out:
-        pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys);
-        return rc;
+ out:
+        for (i = 0; i < total_nr; i++)
+                pci_pool_free(pool, virts[i], phys[i]);
+
+        pci_pool_destroy(pool);
+
+        return ret;
 }
 
 /* stop nic */