From patchwork Tue Jun 23 00:21:02 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 487441 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49FED1401AD for ; Tue, 23 Jun 2015 10:22:10 +1000 (AEST) Received: from localhost ([::1]:42606 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z7ByZ-0007Bf-Ob for incoming@patchwork.ozlabs.org; Mon, 22 Jun 2015 20:22:07 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44603) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z7Bxs-0005wm-AC for qemu-devel@nongnu.org; Mon, 22 Jun 2015 20:21:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z7Bxr-0003UZ-60 for qemu-devel@nongnu.org; Mon, 22 Jun 2015 20:21:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52534) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z7Bxo-0003TB-D4; Mon, 22 Jun 2015 20:21:20 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 1AC57A0E75; Tue, 23 Jun 2015 00:21:20 +0000 (UTC) Received: from scv.usersys.redhat.com (dhcp-17-29.bos.redhat.com [10.18.17.29]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t5N0LGBX002049; Mon, 22 Jun 2015 20:21:19 -0400 From: John Snow To: qemu-block@nongnu.org Date: Mon, 22 Jun 2015 20:21:02 -0400 Message-Id: <1435018875-22527-4-git-send-email-jsnow@redhat.com> In-Reply-To: <1435018875-22527-1-git-send-email-jsnow@redhat.com> References: <1435018875-22527-1-git-send-email-jsnow@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: kwolf@redhat.com, pbonzini@redhat.com, John Snow , qemu-devel@nongnu.org, stefanha@redhat.com Subject: [Qemu-devel] [PATCH 03/16] ahci: assert is_ncq for process_ncq X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We already checked this in the handle_cmd phase, so just change this to an assertion and simplify the error logic. (Also, fix the switch indent, because checkpatch.pl yelled.) ((Sorry for churn.)) Signed-off-by: John Snow --- hw/ide/ahci.c | 60 ++++++++++++++++++++++++++--------------------------------- 1 file changed, 26 insertions(+), 34 deletions(-) diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index ce99e81..2d70104 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -987,6 +987,7 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis, NCQTransferState *ncq_tfs = &ad->ncq_tfs[tag]; size_t size; + g_assert(is_ncq(ncq_fis->command)); if (ncq_tfs->used) { /* error - already in use */ fprintf(stderr, "%s: tag %d already used\n", __FUNCTION__, tag); @@ -1049,44 +1050,35 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis, ide_state->nb_sectors - 1); switch (ncq_tfs->cmd) { - case READ_FPDMA_QUEUED: - DPRINTF(port, "NCQ reading %d sectors from LBA %"PRId64", " - "tag %d\n", - ncq_tfs->sector_count, ncq_tfs->lba, ncq_tfs->tag); + case READ_FPDMA_QUEUED: + DPRINTF(port, "NCQ reading %d sectors from LBA %"PRId64", tag %d\n", + ncq_tfs->sector_count, ncq_tfs->lba, ncq_tfs->tag); - DPRINTF(port, "tag %d aio read %"PRId64"\n", - ncq_tfs->tag, ncq_tfs->lba); + DPRINTF(port, "tag %d aio read %"PRId64"\n", + ncq_tfs->tag, ncq_tfs->lba); - dma_acct_start(ide_state->blk, &ncq_tfs->acct, - &ncq_tfs->sglist, BLOCK_ACCT_READ); - ncq_tfs->aiocb = dma_blk_read(ide_state->blk, - &ncq_tfs->sglist, ncq_tfs->lba, - ncq_cb, ncq_tfs); - break; - case WRITE_FPDMA_QUEUED: - DPRINTF(port, "NCQ writing %d sectors to LBA %"PRId64", tag %d\n", - ncq_tfs->sector_count, ncq_tfs->lba, ncq_tfs->tag); + dma_acct_start(ide_state->blk, &ncq_tfs->acct, + &ncq_tfs->sglist, BLOCK_ACCT_READ); + ncq_tfs->aiocb = dma_blk_read(ide_state->blk, &ncq_tfs->sglist, + ncq_tfs->lba, ncq_cb, ncq_tfs); + break; + case WRITE_FPDMA_QUEUED: + DPRINTF(port, "NCQ writing %d sectors to LBA %"PRId64", tag %d\n", + ncq_tfs->sector_count, ncq_tfs->lba, ncq_tfs->tag); - DPRINTF(port, "tag %d aio write %"PRId64"\n", - ncq_tfs->tag, ncq_tfs->lba); + DPRINTF(port, "tag %d aio write %"PRId64"\n", + ncq_tfs->tag, ncq_tfs->lba); - dma_acct_start(ide_state->blk, &ncq_tfs->acct, - &ncq_tfs->sglist, BLOCK_ACCT_WRITE); - ncq_tfs->aiocb = dma_blk_write(ide_state->blk, - &ncq_tfs->sglist, ncq_tfs->lba, - ncq_cb, ncq_tfs); - break; - default: - if (is_ncq(cmd_fis[2])) { - DPRINTF(port, - "error: unsupported NCQ command (0x%02x) received\n", - cmd_fis[2]); - } else { - DPRINTF(port, - "error: tried to process non-NCQ command as NCQ\n"); - } - qemu_sglist_destroy(&ncq_tfs->sglist); - ncq_err(ncq_tfs); + dma_acct_start(ide_state->blk, &ncq_tfs->acct, + &ncq_tfs->sglist, BLOCK_ACCT_WRITE); + ncq_tfs->aiocb = dma_blk_write(ide_state->blk, &ncq_tfs->sglist, + ncq_tfs->lba, ncq_cb, ncq_tfs); + break; + default: + DPRINTF(port, "error: unsupported NCQ command (0x%02x) received\n", + ncq_tfs->cmd); + qemu_sglist_destroy(&ncq_tfs->sglist); + ncq_err(ncq_tfs); } }