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[Qemu-devel] [PATCH 18/60] e1000: flush queue whenever can_receive can g
From: |
Michael Tokarev |
Subject: |
[Qemu-devel] [PATCH 18/60] e1000: flush queue whenever can_receive can go from false to true |
Date: |
Mon, 4 Feb 2013 14:40:28 +0400 |
From: Paolo Bonzini <address@hidden>
When the guests replenish the receive ring buffer, the network device
should flush its queue of pending packets. This is done with
qemu_flush_queued_packets.
e1000's can_receive can go from false to true when RCTL or RDT are
modified.
Reported-by: Luigi Rizzo <address@hidden>
Cc: Stefan Hajnoczi <address@hidden>
Cc: Jan Kiszka <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
Reviewed-by: Amos Kong <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
(cherry picked from commit e8b4c680b41bd960ecccd9ff076b7b058e0afcd4)
Signed-off-by: Michael Tokarev <address@hidden>
---
hw/e1000.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/e1000.c b/hw/e1000.c
index 4573f13..43d933a 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -295,6 +295,7 @@ set_rx_control(E1000State *s, int index, uint32_t val)
s->rxbuf_min_shift = ((val / E1000_RCTL_RDMTS_QUAT) & 3) + 1;
DBGOUT(RX, "RCTL: %d, mac_reg[RCTL] = 0x%x\n", s->mac_reg[RDT],
s->mac_reg[RCTL]);
+ qemu_flush_queued_packets(&s->nic->nc);
}
static void
@@ -926,6 +927,9 @@ set_rdt(E1000State *s, int index, uint32_t val)
{
s->check_rxov = 0;
s->mac_reg[index] = val & 0xffff;
+ if (e1000_has_rxbufs(s, 1)) {
+ qemu_flush_queued_packets(&s->nic->nc);
+ }
}
static void
--
1.7.10.4
- [Qemu-devel] [PATCH 26/60] target-i386: Allow tsc-frequency to be larger then 2.147G, (continued)
- [Qemu-devel] [PATCH 26/60] target-i386: Allow tsc-frequency to be larger then 2.147G, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 57/60] buffered_file: do not send more than s->bytes_xfer bytes per tick, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 42/60] target-mips: fix wrong microMIPS opcode encoding, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 11/60] net: add -netdev options to man page, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 30/60] MIPS: Correct FCR0 initialization, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 25/60] hw: Fix return value check for bdrv_read, bdrv_write, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 58/60] qxl: save qemu_create_displaysurface_from result, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 50/60] slirp: Don't crash on packets from 0.0.0.0/8., Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 27/60] x86: Fixed incorrect segment base address addition in 64-bits mode, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 49/60] tap: reset vnet header size on open, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 18/60] e1000: flush queue whenever can_receive can go from false to true,
Michael Tokarev <=
- [Qemu-devel] [PATCH 19/60] fix entry pointer for ELF kernels loaded with -kernel option, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 31/60] linux-user: fix emulation of getdents, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 12/60] intel_hda: do not call msi_reset when only device state needs resetting, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 44/60] qcow2: Fix refcount table size calculation, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 43/60] qcow2: Fix avail_sectors in cluster allocation code, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 13/60] usb-audio: fix usb version, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 14/60] fpu/softfloat.c: Return correctly signed values from uint64_to_float32, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 40/60] nbd: fixes to read-only handling, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 60/60] migration: Fix madvise breakage if host and guest have different page sizes, Michael Tokarev, 2013/02/04
- [Qemu-devel] [PATCH 39/60] m68k: Return semihosting errno values correctly, Michael Tokarev, 2013/02/04