From e454358ace657af953b5b289f49cf733973f41e4 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Sun, 30 Jul 2006 00:14:09 -0400 Subject: [PATCH] [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 Signed-off-by: Jeff Garzik --- drivers/net/myri10ge/myri10ge.c | 19 +++++++------------ 1 file 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); -- 2.41.0