From: Klaus Jensen <its@irrelevant.dk>
To: 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>,
Max Reitz <mreitz@redhat.com>, Klaus Jensen <its@irrelevant.dk>,
Stefan Hajnoczi <stefanha@redhat.com>,
Keith Busch <kbusch@kernel.org>
Subject: [PATCH v2 00/12] hw/block/nvme: misc cmb/pmr patches and bump to v1.4
Date: Mon, 18 Jan 2021 10:46:53 +0100 [thread overview]
Message-ID: <20210118094705.56772-1-its@irrelevant.dk> (raw)
From: Klaus Jensen <k.jensen@samsung.com>
This is a resend of "hw/block/nvme: allow cmb and pmr to coexist" with
some more PMR work added (PMR RDS/WDS support).
This includes a resurrection of Andrzej's series[1] from back July.
Andrzej's main patch basically moved the CMB from BAR 2 into an offset
in BAR 4 (located after the MSI-X table and PBA). Having an offset on
the CMB causes a bunch of calculations related to address mapping to
change.
So, since I couldn't get the patch to apply cleanly I took a stab at
implementing the suggestion I originally came up with: simply move the
MSI-X table and PBA from BAR 4 into BAR 0 (up-aligned to a 4 KiB
boundary after the main NVMe controller registers). This way we can keep
the CMB at offset zero in its own BAR and free up BAR 4 for use by PMR.
This makes the patch simpler and does not impact any of the existing
address mapping code.
[1]: https://lore.kernel.org/qemu-devel/20200729220107.37758-1-andrzej.jakowski@linux.intel.com/
Changes for v2
~~~~~~~~~~~~~~
- Rebased on nvme-next
- Added a fix for 64 bit register hi/lo split writes
- Added the patches from "hw/block/nvme: cmb enhancements and bump to
v1.4" to the back of this.
- As suggested by Keith, I removed "legacy CMB" support - the patch
now exclusively bumps the support to the "v1.4 variant", so the
linux kernel nvme gang have to get their game on ;)
Andrzej Jakowski (1):
hw/block/nvme: indicate CMB support through controller capabilities
register
Klaus Jensen (9):
hw/block/nvme: add size to mmio read/write trace events
hw/block/nvme: fix 64 bit register hi/lo split writes
hw/block/nvme: move msix table and pba to BAR 0
hw/block/nvme: allow cmb and pmr to coexist
hw/block/nvme: rename PMR/CMB shift/mask fields
hw/block/nvme: remove redundant zeroing of PMR registers
hw/block/nvme: disable PMR at boot up
hw/block/nvme: bump to v1.4
hw/block/nvme: lift cmb restrictions
Naveen Nagar (1):
hw/block/nvme: add PMR RDS/WDS support
Padmakar Kalghatgi (1):
hw/block/nvme: move cmb logic to v1.4
hw/block/nvme.h | 3 +
include/block/nvme.h | 125 ++++++++++++++---
hw/block/nvme.c | 307 +++++++++++++++++++++++++++---------------
hw/block/trace-events | 6 +-
4 files changed, 314 insertions(+), 127 deletions(-)
--
2.30.0
next reply other threads:[~2021-01-18 9:50 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 9:46 Klaus Jensen [this message]
2021-01-18 9:46 ` [PATCH v2 01/12] hw/block/nvme: add size to mmio read/write trace events Klaus Jensen
2021-01-18 12:29 ` Minwoo Im
2021-01-18 9:46 ` [PATCH v2 02/12] hw/block/nvme: fix 64 bit register hi/lo split writes Klaus Jensen
2021-01-18 12:41 ` Minwoo Im
2021-01-18 12:53 ` Klaus Jensen
2021-01-18 12:59 ` Minwoo Im
2021-01-18 19:53 ` Klaus Jensen
2021-01-19 2:09 ` Minwoo Im
2021-01-19 18:58 ` Keith Busch
2021-01-18 9:46 ` [PATCH v2 03/12] hw/block/nvme: indicate CMB support through controller capabilities register Klaus Jensen
2021-01-18 12:42 ` Minwoo Im
2021-01-18 9:46 ` [PATCH v2 04/12] hw/block/nvme: move msix table and pba to BAR 0 Klaus Jensen
2021-01-18 12:48 ` Minwoo Im
2021-01-18 9:46 ` [PATCH v2 05/12] hw/block/nvme: allow cmb and pmr to coexist Klaus Jensen
2021-01-18 12:50 ` Minwoo Im
2021-01-18 9:46 ` [PATCH v2 06/12] hw/block/nvme: rename PMR/CMB shift/mask fields Klaus Jensen
2021-01-18 12:52 ` Minwoo Im
2021-01-18 9:47 ` [PATCH v2 07/12] hw/block/nvme: remove redundant zeroing of PMR registers Klaus Jensen
2021-01-18 12:55 ` Minwoo Im
2021-01-18 13:02 ` Klaus Jensen
2021-01-18 9:47 ` [PATCH v2 08/12] hw/block/nvme: disable PMR at boot up Klaus Jensen
2021-01-18 9:47 ` [PATCH v2 09/12] hw/block/nvme: add PMR RDS/WDS support Klaus Jensen
2021-01-18 9:47 ` [PATCH v2 10/12] hw/block/nvme: move cmb logic to v1.4 Klaus Jensen
2021-01-18 12:58 ` Minwoo Im
2021-01-18 13:04 ` Klaus Jensen
2021-01-18 13:09 ` Minwoo Im
2021-01-18 13:10 ` Klaus Jensen
2021-01-18 13:12 ` Minwoo Im
2021-01-18 13:22 ` Klaus Jensen
2021-01-18 19:23 ` Klaus Jensen
2021-01-19 2:11 ` Minwoo Im
2021-01-18 9:47 ` [PATCH v2 11/12] hw/block/nvme: bump " Klaus Jensen
2021-01-18 9:47 ` [PATCH v2 12/12] hw/block/nvme: lift cmb restrictions Klaus Jensen
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