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Re: [Qemu-devel] [PATCH] e1000e: remove internal interrupt flag
From: |
Dmitry Fleytman |
Subject: |
Re: [Qemu-devel] [PATCH] e1000e: remove internal interrupt flag |
Date: |
Thu, 18 Aug 2016 18:31:41 +0300 |
> On 18 Aug 2016, at 17:15, Cao jin <address@hidden> wrote:
>
> Commit 66bf7d58 removed internal msi state flag E1000E_USE_MSI,
> E1000E_USE_MSIX
> is not necessary too, remove it now. And interrupt flag field intr_state also
> can be removed now.
>
> CC: Dmitry Fleytman <address@hidden>
> CC: Jason Wang <address@hidden>
> CC: Markus Armbruster <address@hidden>
> CC: Marcel Apfelbaum <address@hidden>
> CC: Michael S. Tsirkin <address@hidden>
> CC: Paolo Bonzini <address@hidden>
> Signed-off-by: Cao jin <address@hidden>
> ---
> hw/net/e1000e.c | 8 +-------
> 1 file changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c
> index 82a7be1..72aad21 100644
> --- a/hw/net/e1000e.c
> +++ b/hw/net/e1000e.c
> @@ -69,7 +69,6 @@ typedef struct E1000EState {
> uint16_t subsys_ven_used;
> uint16_t subsys_used;
>
> - uint32_t intr_state;
> bool disable_vnet;
>
> E1000ECore core;
> @@ -89,8 +88,6 @@ typedef struct E1000EState {
> #define E1000E_MSIX_TABLE (0x0000)
> #define E1000E_MSIX_PBA (0x2000)
>
> -#define E1000E_USE_MSIX BIT(0)
> -
> static uint64_t
> e1000e_mmio_read(void *opaque, hwaddr addr, unsigned size)
> {
> @@ -302,8 +299,6 @@ e1000e_init_msix(E1000EState *s)
> } else {
> if (!e1000e_use_msix_vectors(s, E1000E_MSIX_VEC_NUM)) {
> msix_uninit(d, &s->msix, &s->msix);
> - } else {
> - s->intr_state |= E1000E_USE_MSIX;
So you are removing error handling here. But what if e1000e_use_msix_vectors
fails?
> }
> }
> }
> @@ -311,7 +306,7 @@ e1000e_init_msix(E1000EState *s)
> static void
> e1000e_cleanup_msix(E1000EState *s)
> {
> - if (s->intr_state & E1000E_USE_MSIX) {
> + if (msix_enabled(PCI_DEVICE(s))) {
> e1000e_unuse_msix_vectors(s, E1000E_MSIX_VEC_NUM);
> msix_uninit(PCI_DEVICE(s), &s->msix, &s->msix);
> }
> @@ -601,7 +596,6 @@ static const VMStateDescription e1000e_vmstate = {
> VMSTATE_MSIX(parent_obj, E1000EState),
>
> VMSTATE_UINT32(ioaddr, E1000EState),
> - VMSTATE_UINT32(intr_state, E1000EState),
> VMSTATE_UINT32(core.rxbuf_min_shift, E1000EState),
> VMSTATE_UINT8(core.rx_desc_len, E1000EState),
> VMSTATE_UINT32_ARRAY(core.rxbuf_sizes, E1000EState,
> --
> 2.1.0
>
>
>