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[PATCH 12/15] block/nvme: Simplify device reset
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH 12/15] block/nvme: Simplify device reset |
Date: |
Wed, 14 Oct 2020 17:58:07 +0200 |
Avoid multiple endianess conversion by using device endianess.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
block/nvme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/nvme.c b/block/nvme.c
index fad727416ee..299fc82f40f 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -747,7 +747,7 @@ static int nvme_init(BlockDriverState *bs, const char
*device, int namespace,
timeout_ms = MIN(500 * NVME_CAP_TO(cap), 30000);
/* Reset device to get a clean state. */
- regs->cc = cpu_to_le32(le32_to_cpu(regs->cc) & 0xFE);
+ regs->cc &= const_le32(0xFE);
/* Wait for CSTS.RDY = 0. */
deadline = qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + timeout_ms * SCALE_MS;
while (NVME_CSTS_RDY(le32_to_cpu(regs->csts))) {
--
2.26.2
- [PATCH 02/15] block/nvme: Trace nvme_poll_queue() per queue, (continued)
- [PATCH 02/15] block/nvme: Trace nvme_poll_queue() per queue, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 01/15] block/nvme: Move nvme_poll_cb() earlier, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 03/15] block/nvme: Use unsigned integer for queue counter/size, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 04/15] block/nvme: Improve nvme_free_req_queue_wait() trace information, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 05/15] block/nvme: Trace queue pair creation/deletion, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 06/15] block/nvme: Make nvme_identify() return boolean indicating error, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 07/15] block/nvme: Make nvme_init_queue() return boolean indicating error, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 09/15] block/nvme: Introduce Completion Queue definitions, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 10/15] block/nvme: Use definitions instead of magic values in add_io_queue(), Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 08/15] block/nvme: Pass AioContext argument to nvme_add_io_queue(), Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 12/15] block/nvme: Simplify device reset,
Philippe Mathieu-Daudé <=
- [PATCH 11/15] block/nvme: Trace controller capabilities, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 13/15] block/nvme: Simplify ADMIN queue access, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 15/15] block/nvme: Set request_alignment at initialization, Philippe Mathieu-Daudé, 2020/10/14
- [PATCH 14/15] block/nvme: Report warning with warn_report(), Philippe Mathieu-Daudé, 2020/10/14