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authorDmitry Fleytman2013-03-28 09:53:29 +0100
committerStefan Hajnoczi2013-04-08 14:01:14 +0200
commit3e948fd38556f872f40ac588ec9008c099010007 (patch)
treeec4c741deb363fedb81f9075dbfef9aaafeeed47 /hw/vmxnet3.c
parentMerge branch 'arm-devs.next' of git://git.linaro.org/people/pmaydell/qemu-arm (diff)
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vmxnet3: iPXE compatibility fixes
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 <dmitry@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/vmxnet3.c')
-rw-r--r--hw/vmxnet3.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/vmxnet3.c b/hw/vmxnet3.c
index bdd256e9d5..1e18168e0b 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);