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[Qemu-devel] [PATCH 1/2] vmxnet3: iPXE compatibility fixes
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 1/2] vmxnet3: iPXE compatibility fixes |
Date: |
Mon, 8 Apr 2013 14:42:57 +0200 |
From: Dmitry Fleytman <address@hidden>
iPXE vmxnet3 driver makes a few assumptions regarding device operation
that were missed during testing with Linux and Windows drivers.
This patch adds following logic:
1. Additional GET commands processing added
2. Max number of RX chunks should be set to 1 when driver passes 0
via corresponding shared memory field
3. Enforecement for max chunks number added
Signed-off-by: Dmitry Fleytman <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
hw/vmxnet3.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/vmxnet3.c b/hw/vmxnet3.c
index bdd256e..1e18168 100644
--- a/hw/vmxnet3.c
+++ b/hw/vmxnet3.c
@@ -1033,6 +1033,7 @@ vmxnet3_indicate_packet(VMXNET3State *s)
is_head = false;
ready_rxcd_pa = new_rxcd_pa;
new_rxcd_pa = 0;
+ num_frags++;
}
if (0 != ready_rxcd_pa) {
@@ -1324,6 +1325,10 @@ static void vmxnet3_activate_device(VMXNET3State *s)
s->max_rx_frags =
VMXNET3_READ_DRV_SHARED16(s->drv_shmem, devRead.misc.maxNumRxSG);
+ if (s->max_rx_frags == 0) {
+ s->max_rx_frags = 1;
+ }
+
VMW_CFPRN("Max RX fragments is %u", s->max_rx_frags);
s->event_int_idx =
@@ -1524,6 +1529,12 @@ static uint64_t vmxnet3_get_command_status(VMXNET3State
*s)
VMW_CFPRN("Device active: %" PRIx64, ret);
break;
+ case VMXNET3_CMD_RESET_DEV:
+ case VMXNET3_CMD_QUIESCE_DEV:
+ case VMXNET3_CMD_GET_QUEUE_STATUS:
+ ret = 0;
+ break;
+
case VMXNET3_CMD_GET_LINK:
ret = s->link_status_and_speed;
VMW_CFPRN("Link and speed: %" PRIx64, ret);
--
1.8.1.4