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Message-Id: <1318529518-4922-4-git-send-email-mark.einon@gmail.com>
Date: Thu, 13 Oct 2011 19:11:58 +0100
From: Mark Einon <mark.einon@...il.com>
To: gregkh@...e.de
Cc: devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
Mark Einon <mark.einon@...il.com>
Subject: [PATCH 4/4] staging: et131x: use dma_alloc... instead of pci_alloc...
Use dma_allocs instead of pci_allocs, so we can use GFP_KERNEL
allocations.
Also removed this item from the TODO list
Signed-off-by: Mark Einon <mark.einon@...il.com>
---
drivers/staging/et131x/README | 1 -
drivers/staging/et131x/et131x.c | 39 ++++++++++++++++++++++-----------------
2 files changed, 22 insertions(+), 18 deletions(-)
diff --git a/drivers/staging/et131x/README b/drivers/staging/et131x/README
index 1e0fcf4..87b9360 100644
--- a/drivers/staging/et131x/README
+++ b/drivers/staging/et131x/README
@@ -9,7 +9,6 @@ driver as they did not build properly at the time.
TODO:
- Use of kmem_cache seems a bit unusual
- - Use dma_alloc_... in place of pci_alloc_...
- It's too late stopping the tx queue when there is no room for the current packet. The condition should be detected for the next packet.
- PCI_VDEVICE ?
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 0fbb77d..06ba4a9 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -1965,9 +1965,10 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
/* Allocate an area of memory for Free Buffer Ring 1 */
bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[0]->num_entries) + 0xfff;
- rx_ring->fbr[0]->ring_virtaddr = pci_alloc_consistent(adapter->pdev,
- bufsize,
- &rx_ring->fbr[0]->ring_physaddr);
+ rx_ring->fbr[0]->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
+ bufsize,
+ &rx_ring->fbr[0]->ring_physaddr,
+ GFP_KERNEL);
if (!rx_ring->fbr[0]->ring_virtaddr) {
dev_err(&adapter->pdev->dev,
"Cannot alloc memory for Free Buffer Ring 1\n");
@@ -1995,9 +1996,10 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
#ifdef USE_FBR0
/* Allocate an area of memory for Free Buffer Ring 0 */
bufsize = (sizeof(struct fbr_desc) * rx_ring->fbr[1]->num_entries) + 0xfff;
- rx_ring->fbr[1]->ring_virtaddr = pci_alloc_consistent(adapter->pdev,
+ rx_ring->fbr[1]->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
bufsize,
- &rx_ring->fbr[1]->ring_physaddr);
+ &rx_ring->fbr[1]->ring_physaddr,
+ GFP_KERNEL);
if (!rx_ring->fbr[1]->ring_virtaddr) {
dev_err(&adapter->pdev->dev,
"Cannot alloc memory for Free Buffer Ring 0\n");
@@ -2042,8 +2044,8 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
fbr_chunksize =
(FBR_CHUNKS * rx_ring->fbr[0]->buffsize) + fbr1_align - 1;
rx_ring->fbr[0]->mem_virtaddrs[i] =
- pci_alloc_consistent(adapter->pdev, fbr_chunksize,
- &rx_ring->fbr[0]->mem_physaddrs[i]);
+ dma_alloc_coherent(&adapter->pdev->dev, fbr_chunksize,
+ &rx_ring->fbr[0]->mem_physaddrs[i], GFP_KERNEL);
if (!rx_ring->fbr[0]->mem_virtaddrs[i]) {
dev_err(&adapter->pdev->dev,
@@ -2094,8 +2096,8 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
fbr_chunksize =
((FBR_CHUNKS + 1) * rx_ring->fbr[1]->buffsize) - 1;
rx_ring->fbr[1]->mem_virtaddrs[i] =
- pci_alloc_consistent(adapter->pdev, fbr_chunksize,
- &rx_ring->fbr[1]->mem_physaddrs[i]);
+ dma_alloc_coherent(&adapter->pdev->dev, fbr_chunksize,
+ &rx_ring->fbr[1]->mem_physaddrs[i], GFP_KERNEL);
if (!rx_ring->fbr[1]->mem_virtaddrs[i]) {
dev_err(&adapter->pdev->dev,
@@ -2137,9 +2139,10 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
pktstat_ringsize =
sizeof(struct pkt_stat_desc) * adapter->rx_ring.psr_num_entries;
- rx_ring->ps_ring_virtaddr = pci_alloc_consistent(adapter->pdev,
+ rx_ring->ps_ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
pktstat_ringsize,
- &rx_ring->ps_ring_physaddr);
+ &rx_ring->ps_ring_physaddr,
+ GFP_KERNEL);
if (!rx_ring->ps_ring_virtaddr) {
dev_err(&adapter->pdev->dev,
@@ -2157,9 +2160,10 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
*/
/* Allocate an area of memory for writeback of status information */
- rx_ring->rx_status_block = pci_alloc_consistent(adapter->pdev,
+ rx_ring->rx_status_block = dma_alloc_coherent(&adapter->pdev->dev,
sizeof(struct rx_status_block),
- &rx_ring->rx_status_bus);
+ &rx_ring->rx_status_bus,
+ GFP_KERNEL);
if (!rx_ring->rx_status_block) {
dev_err(&adapter->pdev->dev,
"Cannot alloc memory for Status Block\n");
@@ -2992,8 +2996,8 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
*/
desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX) + 4096 - 1;
tx_ring->tx_desc_ring =
- (struct tx_desc *) pci_alloc_consistent(adapter->pdev, desc_size,
- &tx_ring->tx_desc_ring_pa);
+ (struct tx_desc *) dma_alloc_coherent(&adapter->pdev->dev, desc_size,
+ &tx_ring->tx_desc_ring_pa, GFP_KERNEL);
if (!adapter->tx_ring.tx_desc_ring) {
dev_err(&adapter->pdev->dev,
"Cannot alloc memory for Tx Ring\n");
@@ -3008,9 +3012,10 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
* storing the adjusted address.
*/
/* Allocate memory for the Tx status block */
- tx_ring->tx_status = pci_alloc_consistent(adapter->pdev,
+ tx_ring->tx_status = dma_alloc_coherent(&adapter->pdev->dev,
sizeof(u32),
- &tx_ring->tx_status_pa);
+ &tx_ring->tx_status_pa,
+ GFP_KERNEL);
if (!adapter->tx_ring.tx_status_pa) {
dev_err(&adapter->pdev->dev,
"Cannot alloc memory for Tx status block\n");
--
1.7.6.4
--
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