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authorBrice Goglin <brice@myri.com>2006-07-30 00:14:09 -0400
committerJeff Garzik <jeff@garzik.org>2006-08-03 17:31:10 -0400
commite454358ace657af953b5b289f49cf733973f41e4 (patch)
tree62ab274bead7523e8402e7ee9d15a55e10a0914a /drivers/net
parent817acf5ebd9ea21f134fc90064b0f6686c5b169d (diff)
[PATCH] myri10ge - Write the firmware in 256-bytes chunks
When writing the firmware to the NIC, the FIFO is 256-bytes long, so we use 256-bytes chunks and a read to wait until the previous write is done. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/myri10ge/myri10ge.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index c3e52c806b1..198c6f0e010 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -448,6 +448,7 @@ static int myri10ge_load_hotplug_firmware(struct myri10ge_priv *mgp, u32 * size)
struct mcp_gen_header *hdr;
size_t hdr_offset;
int status;
+ unsigned i;
if ((status = request_firmware(&fw, mgp->fw_name, dev)) < 0) {
dev_err(dev, "Unable to load %s firmware image via hotplug\n",
@@ -479,18 +480,12 @@ static int myri10ge_load_hotplug_firmware(struct myri10ge_priv *mgp, u32 * size)
goto abort_with_fw;
crc = crc32(~0, fw->data, fw->size);
- if (mgp->tx.boundary == 2048) {
- /* Avoid PCI burst on chipset with unaligned completions. */
- int i;
- __iomem u32 *ptr = (__iomem u32 *) (mgp->sram +
- MYRI10GE_FW_OFFSET);
- for (i = 0; i < fw->size / 4; i++) {
- __raw_writel(((u32 *) fw->data)[i], ptr + i);
- wmb();
- }
- } else {
- myri10ge_pio_copy(mgp->sram + MYRI10GE_FW_OFFSET, fw->data,
- fw->size);
+ for (i = 0; i < fw->size; i += 256) {
+ myri10ge_pio_copy(mgp->sram + MYRI10GE_FW_OFFSET + i,
+ fw->data + i,
+ min(256U, (unsigned)(fw->size - i)));
+ mb();
+ readb(mgp->sram);
}
/* corruption checking is good for parity recovery and buggy chipset */
memcpy_fromio(fw->data, mgp->sram + MYRI10GE_FW_OFFSET, fw->size);