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Re: [Qemu-devel] [PATCH v3 6/8] megasas: remove unnecessary megasas_use_
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v3 6/8] megasas: remove unnecessary megasas_use_msix() |
Date: |
Thu, 29 Sep 2016 16:35:17 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Cao jin <address@hidden> writes:
> CC: Hannes Reinecke <address@hidden>
> CC: Paolo Bonzini <address@hidden>
> CC: Markus Armbruster <address@hidden>
> CC: Marcel Apfelbaum <address@hidden>
> CC: Michael S. Tsirkin <address@hidden>
> Signed-off-by: Cao jin <address@hidden>
> ---
> hw/scsi/megasas.c | 21 +++++++--------------
> 1 file changed, 7 insertions(+), 14 deletions(-)
>
> diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
> index d801dd0..90cd873 100644
> --- a/hw/scsi/megasas.c
> +++ b/hw/scsi/megasas.c
> @@ -155,11 +155,6 @@ static bool megasas_use_queue64(MegasasState *s)
> return s->flags & MEGASAS_MASK_USE_QUEUE64;
> }
>
> -static bool megasas_use_msix(MegasasState *s)
> -{
> - return s->msix != ON_OFF_AUTO_OFF;
> -}
> -
> static bool megasas_is_jbod(MegasasState *s)
> {
> return s->flags & MEGASAS_MASK_USE_JBOD;
> @@ -2295,9 +2290,7 @@ static void megasas_scsi_uninit(PCIDevice *d)
> {
> MegasasState *s = MEGASAS(d);
>
> - if (megasas_use_msix(s)) {
> - msix_uninit(d, &s->mmio_io, &s->mmio_io);
> - }
> + msix_uninit(d, &s->mmio_io, &s->mmio_io);
> msi_uninit(d);
> }
>
> @@ -2349,7 +2342,7 @@ static void megasas_scsi_realize(PCIDevice *dev, Error
> **errp)
>
> memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s,
> "megasas-mmio", 0x4000);
> - if (megasas_use_msix(s)) {
> + if (s->msix != ON_OFF_AUTO_OFF) {
> ret = msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000,
> &s->mmio_io, b->mmio_bar, 0x3800, 0x68, &err);
> /* Any error other than -ENOTSUP(board's MSI support is broken)
> @@ -2364,11 +2357,15 @@ static void megasas_scsi_realize(PCIDevice *dev,
> Error **errp)
> error_propagate(errp, err);
> return;
> }
> - assert(!err || d->msix == ON_OFF_AUTO_AUTO);
> + assert(!err || s->msix == ON_OFF_AUTO_AUTO);
You add this line in PATCH 4. Could it use s->msix from the start?
> /* With msix=auto, we fall back to MSI off silently */
> error_free(err);
> }
>
> + if (msix_enabled(dev)) {
> + msix_vector_use(dev, 0);
> + }
> +
> memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s,
> "megasas-io", 256);
> memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s,
> @@ -2384,10 +2381,6 @@ static void megasas_scsi_realize(PCIDevice *dev, Error
> **errp)
> pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io);
> pci_register_bar(dev, 3, bar_type, &s->queue_io);
>
> - if (megasas_use_msix(s)) {
> - msix_vector_use(dev, 0);
> - }
> -
> s->fw_state = MFI_FWSTATE_READY;
> if (!s->sas_addr) {
> s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) |
Can you explain why you move the code?
- [Qemu-devel] [PATCH v3 0/8] Convert msix_init() to error, Cao jin, 2016/09/14
- [Qemu-devel] [PATCH v3 4/8] megasas: change behaviour of msix switch, Cao jin, 2016/09/14
- [Qemu-devel] [PATCH v3 5/8] hcd-xhci: change behaviour of msix switch, Cao jin, 2016/09/14
- [Qemu-devel] [PATCH v3 2/8] hcd-xhci: check & correct param before using it, Cao jin, 2016/09/14
- [Qemu-devel] [PATCH v3 7/8] megasas: undo the overwrites of msi user configuration, Cao jin, 2016/09/14