From: Klaus Jensen <its@irrelevant.dk>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>,
qemu-block@nongnu.org, Klaus Jensen <k.jensen@samsung.com>,
Gollu Appalanaidu <anaidu.gollu@samsung.com>,
Max Reitz <mreitz@redhat.com>, Klaus Jensen <its@irrelevant.dk>,
Stefan Hajnoczi <stefanha@redhat.com>,
Keith Busch <kbusch@kernel.org>
Subject: [PULL for-6.0 5/7] hw/block/nvme: update dmsrl limit on namespace detachment
Date: Tue, 6 Apr 2021 22:46:25 +0200 [thread overview]
Message-ID: <20210406204627.140812-6-its@irrelevant.dk> (raw)
In-Reply-To: <20210406204627.140812-1-its@irrelevant.dk>
From: Klaus Jensen <k.jensen@samsung.com>
The Non-MDTS DMSRL limit must be recomputed when namespaces are
detached.
Fixes: 645ce1a70cb6 ("hw/block/nvme: support namespace attachment command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
---
hw/block/nvme.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 09c38fb35e0d..0898ece2af31 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -4868,6 +4868,21 @@ static uint16_t nvme_aer(NvmeCtrl *n, NvmeRequest *req)
return NVME_NO_COMPLETE;
}
+static void nvme_update_dmrsl(NvmeCtrl *n)
+{
+ int nsid;
+
+ for (nsid = 1; nsid <= NVME_MAX_NAMESPACES; nsid++) {
+ NvmeNamespace *ns = nvme_ns(n, nsid);
+ if (!ns) {
+ continue;
+ }
+
+ n->dmrsl = MIN_NON_ZERO(n->dmrsl,
+ BDRV_REQUEST_MAX_BYTES / nvme_l2b(ns, 1));
+ }
+}
+
static void __nvme_select_ns_iocs(NvmeCtrl *n, NvmeNamespace *ns);
static uint16_t nvme_ns_attachment(NvmeCtrl *n, NvmeRequest *req)
{
@@ -4917,6 +4932,8 @@ static uint16_t nvme_ns_attachment(NvmeCtrl *n, NvmeRequest *req)
}
nvme_ns_detach(ctrl, ns);
+
+ nvme_update_dmrsl(ctrl);
}
/*
--
2.31.1
next prev parent reply other threads:[~2021-04-06 21:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-06 20:46 [PULL for-6.0 0/7] emulated nvme fixes for -rc3 Klaus Jensen
2021-04-06 20:46 ` [PULL for-6.0 1/7] hw/block/nvme: fix pi constraint check Klaus Jensen
2021-04-06 20:46 ` [PULL for-6.0 2/7] hw/block/nvme: fix missing string representation for ns attachment Klaus Jensen
2021-04-06 20:46 ` [PULL for-6.0 3/7] hw/block/nvme: fix the nsid 'invalid' value Klaus Jensen
2021-04-06 20:46 ` [PULL for-6.0 4/7] hw/block/nvme: fix warning about legacy namespace configuration Klaus Jensen
2021-04-06 20:46 ` Klaus Jensen [this message]
2021-04-06 20:46 ` [PULL for-6.0 6/7] hw/block/nvme: fix handling of private namespaces Klaus Jensen
2021-04-06 20:46 ` [PULL for-6.0 7/7] hw/block/nvme: add missing copyright headers Klaus Jensen
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