forked from luck/tmp_suning_uos_patched
myri10ge: move the DMA test code into its own function
Move the DMA test code into its own function. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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2f76216fe0
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0d6ac257ab
@ -714,14 +714,78 @@ myri10ge_change_promisc(struct myri10ge_priv *mgp, int promisc, int atomic)
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mgp->dev->name);
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}
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static int myri10ge_dma_test(struct myri10ge_priv *mgp, int test_type)
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{
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struct myri10ge_cmd cmd;
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int status;
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u32 len;
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struct page *dmatest_page;
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dma_addr_t dmatest_bus;
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char *test = " ";
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dmatest_page = alloc_page(GFP_KERNEL);
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if (!dmatest_page)
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return -ENOMEM;
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dmatest_bus = pci_map_page(mgp->pdev, dmatest_page, 0, PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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/* Run a small DMA test.
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* The magic multipliers to the length tell the firmware
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* to do DMA read, write, or read+write tests. The
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* results are returned in cmd.data0. The upper 16
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* bits or the return is the number of transfers completed.
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* The lower 16 bits is the time in 0.5us ticks that the
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* transfers took to complete.
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*/
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len = mgp->tx.boundary;
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x10000;
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status = myri10ge_send_cmd(mgp, test_type, &cmd, 0);
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if (status != 0) {
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test = "read";
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goto abort;
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}
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mgp->read_dma = ((cmd.data0 >> 16) * len * 2) / (cmd.data0 & 0xffff);
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x1;
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status = myri10ge_send_cmd(mgp, test_type, &cmd, 0);
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if (status != 0) {
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test = "write";
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goto abort;
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}
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mgp->write_dma = ((cmd.data0 >> 16) * len * 2) / (cmd.data0 & 0xffff);
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x10001;
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status = myri10ge_send_cmd(mgp, test_type, &cmd, 0);
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if (status != 0) {
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test = "read/write";
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goto abort;
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}
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mgp->read_write_dma = ((cmd.data0 >> 16) * len * 2 * 2) /
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(cmd.data0 & 0xffff);
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abort:
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pci_unmap_page(mgp->pdev, dmatest_bus, PAGE_SIZE, DMA_BIDIRECTIONAL);
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put_page(dmatest_page);
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if (status != 0 && test_type != MXGEFW_CMD_UNALIGNED_TEST)
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dev_warn(&mgp->pdev->dev, "DMA %s benchmark failed: %d\n",
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test, status);
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return status;
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}
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static int myri10ge_reset(struct myri10ge_priv *mgp)
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{
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struct myri10ge_cmd cmd;
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int status;
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size_t bytes;
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u32 len;
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struct page *dmatest_page;
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dma_addr_t dmatest_bus;
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/* try to send a reset command to the card to see if it
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* is alive */
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@ -731,11 +795,8 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
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dev_err(&mgp->pdev->dev, "failed reset\n");
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return -ENXIO;
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}
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dmatest_page = alloc_page(GFP_KERNEL);
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if (!dmatest_page)
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return -ENOMEM;
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dmatest_bus = pci_map_page(mgp->pdev, dmatest_page, 0, PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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(void)myri10ge_dma_test(mgp, MXGEFW_DMA_TEST);
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/* Now exchange information about interrupts */
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@ -763,52 +824,6 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
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}
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put_be32(htonl(mgp->intr_coal_delay), mgp->intr_coal_delay_ptr);
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/* Run a small DMA test.
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* The magic multipliers to the length tell the firmware
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* to do DMA read, write, or read+write tests. The
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* results are returned in cmd.data0. The upper 16
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* bits or the return is the number of transfers completed.
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* The lower 16 bits is the time in 0.5us ticks that the
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* transfers took to complete.
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*/
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len = mgp->tx.boundary;
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x10000;
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status = myri10ge_send_cmd(mgp, MXGEFW_DMA_TEST, &cmd, 0);
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if (status == 0)
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mgp->read_dma = ((cmd.data0 >> 16) * len * 2) /
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(cmd.data0 & 0xffff);
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else
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dev_warn(&mgp->pdev->dev, "DMA read benchmark failed: %d\n",
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status);
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x1;
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status = myri10ge_send_cmd(mgp, MXGEFW_DMA_TEST, &cmd, 0);
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if (status == 0)
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mgp->write_dma = ((cmd.data0 >> 16) * len * 2) /
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(cmd.data0 & 0xffff);
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else
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dev_warn(&mgp->pdev->dev, "DMA write benchmark failed: %d\n",
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status);
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cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
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cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
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cmd.data2 = len * 0x10001;
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status = myri10ge_send_cmd(mgp, MXGEFW_DMA_TEST, &cmd, 0);
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if (status == 0)
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mgp->read_write_dma = ((cmd.data0 >> 16) * len * 2 * 2) /
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(cmd.data0 & 0xffff);
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else
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dev_warn(&mgp->pdev->dev,
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"DMA read/write benchmark failed: %d\n", status);
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pci_unmap_page(mgp->pdev, dmatest_bus, PAGE_SIZE, DMA_BIDIRECTIONAL);
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put_page(dmatest_page);
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memset(mgp->rx_done.entry, 0, bytes);
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/* reset mcp/driver shared state back to 0 */
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