From owner-dev-commits-src-all@freebsd.org Wed Feb 24 18:13:00 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 0C0575652D0; Wed, 24 Feb 2021 18:13:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Dm3tg6qsxz3vtw; Wed, 24 Feb 2021 18:12:59 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id DA80CAFB; Wed, 24 Feb 2021 18:12:59 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 11OICxUI063706; Wed, 24 Feb 2021 18:12:59 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 11OICxi7063705; Wed, 24 Feb 2021 18:12:59 GMT (envelope-from git) Date: Wed, 24 Feb 2021 18:12:59 GMT Message-Id: <202102241812.11OICxi7063705@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Warner Losh Subject: git: 4f4f44f70fb8 - stable/13 - nvme: use NVME_GONE rather than hard-coded 0xffffffff MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: imp X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 4f4f44f70fb87d2456e0a9955b66ae7f3cbc1997 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Feb 2021 18:13:00 -0000 The branch stable/13 has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=4f4f44f70fb87d2456e0a9955b66ae7f3cbc1997 commit 4f4f44f70fb87d2456e0a9955b66ae7f3cbc1997 Author: Warner Losh AuthorDate: 2021-02-08 20:08:48 +0000 Commit: Warner Losh CommitDate: 2021-02-24 18:10:45 +0000 nvme: use NVME_GONE rather than hard-coded 0xffffffff Make it clearer that the value 0xfffffff is being used to detect the device is gone. We use it other places in the driver for other meanings. (cherry picked from commit 9600aa31aa633bbb9e8a56d91a781d5a7ce2bff6) --- sys/dev/nvme/nvme_ctrlr.c | 6 +++--- sys/dev/nvme/nvme_private.h | 2 ++ sys/dev/nvme/nvme_qpair.c | 2 +- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/sys/dev/nvme/nvme_ctrlr.c b/sys/dev/nvme/nvme_ctrlr.c index 2bd7074ee378..c0e6c408ab56 100644 --- a/sys/dev/nvme/nvme_ctrlr.c +++ b/sys/dev/nvme/nvme_ctrlr.c @@ -261,7 +261,7 @@ nvme_ctrlr_wait_for_ready(struct nvme_controller *ctrlr, int desired_val) ms_waited = 0; while (1) { csts = nvme_mmio_read_4(ctrlr, csts); - if (csts == 0xffffffff) /* Hot unplug. */ + if (csts == NVME_GONE) /* Hot unplug. */ return (ENXIO); if (((csts >> NVME_CSTS_REG_RDY_SHIFT) & NVME_CSTS_REG_RDY_MASK) == desired_val) @@ -1471,7 +1471,7 @@ nvme_ctrlr_destruct(struct nvme_controller *ctrlr, device_t dev) * Check whether it is a hot unplug or a clean driver detach. * If device is not there any more, skip any shutdown commands. */ - gone = (nvme_mmio_read_4(ctrlr, csts) == 0xffffffff); + gone = (nvme_mmio_read_4(ctrlr, csts) == NVME_GONE); if (gone) nvme_ctrlr_fail(ctrlr); else @@ -1549,7 +1549,7 @@ nvme_ctrlr_shutdown(struct nvme_controller *ctrlr) ((uint64_t)ctrlr->cdata.rtd3e * hz + 999999) / 1000000; while (1) { csts = nvme_mmio_read_4(ctrlr, csts); - if (csts == 0xffffffff) /* Hot unplug. */ + if (csts == NVME_GONE) /* Hot unplug. */ break; if (NVME_CSTS_GET_SHST(csts) == NVME_SHST_COMPLETE) break; diff --git a/sys/dev/nvme/nvme_private.h b/sys/dev/nvme/nvme_private.h index d44f1989dd71..6c1d293f047d 100644 --- a/sys/dev/nvme/nvme_private.h +++ b/sys/dev/nvme/nvme_private.h @@ -104,6 +104,8 @@ MALLOC_DECLARE(M_NVME); #define CACHE_LINE_SIZE (64) #endif +#define NVME_GONE 0xfffffffful + extern int32_t nvme_retry_count; extern bool nvme_verbose_cmd_dump; diff --git a/sys/dev/nvme/nvme_qpair.c b/sys/dev/nvme/nvme_qpair.c index 45b1568a4c5a..0726ca248442 100644 --- a/sys/dev/nvme/nvme_qpair.c +++ b/sys/dev/nvme/nvme_qpair.c @@ -945,7 +945,7 @@ nvme_timeout(void *arg) nvme_abort_complete, tr); } else { nvme_printf(ctrlr, "Resetting controller due to a timeout%s.\n", - (csts == 0xffffffff) ? " and possible hot unplug" : + (csts == NVME_GONE) ? " and possible hot unplug" : (cfs ? " and fatal error status" : "")); nvme_ctrlr_reset(ctrlr); }