diff options
| author | Miao Yan <yanmiaobest@gmail.com> | 2015-12-22 22:06:08 -0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2016-01-11 11:01:34 +0800 |
| commit | c469669ef7b4ee2ec1e0db0053ada6809c5b5f98 (patch) | |
| tree | 1eb7d86ac64471767d2875538c09677e5eb58c8d /hw | |
| parent | fde58177aa112da377bbe1af71e0ec3ee7750196 (diff) | |
net/vmxnet3: return correct value for VMXNET3_CMD_GET_DID_* command
VMXNET3_CMD_GET_DID_LO should return PCI ID of the device
and VMXNET3_CMD_GET_DID_HI should return vmxnet3 revision ID.
This behavior can be observed by the following steps:
1) run a Linux distro on esxi server (5.x+)
2) modify vmxnet3 Linux driver to read DID_HI and DID_LO:
VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_DID_LO);
lo = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_DID_HI);
high = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
pr_info("vmxnet3 DID lo: 0x%x, high: 0x%x\n", lo, high);
The kernel log will have something like the following message:
[ 7005.111170] vmxnet3 DID lo: 0x7b0, high: 0x1
Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/net/vmxnet3.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c index 8a992d3244..0aff0d4658 100644 --- a/hw/net/vmxnet3.c +++ b/hw/net/vmxnet3.c @@ -1650,6 +1650,14 @@ static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd) "adaptive ring info flags"); break; + case VMXNET3_CMD_GET_DID_LO: + VMW_CBPRN("Set: Get lower part of device ID"); + break; + + case VMXNET3_CMD_GET_DID_HI: + VMW_CBPRN("Set: Get upper part of device ID"); + break; + default: VMW_CBPRN("Received unknown command: %" PRIx64, cmd); break; @@ -1693,6 +1701,14 @@ static uint64_t vmxnet3_get_command_status(VMXNET3State *s) ret = VMXNET3_DISABLE_ADAPTIVE_RING; break; + case VMXNET3_CMD_GET_DID_LO: + ret = PCI_DEVICE_ID_VMWARE_VMXNET3; + break; + + case VMXNET3_CMD_GET_DID_HI: + ret = VMXNET3_DEVICE_REVISION; + break; + default: VMW_WRPRN("Received request for unknown command: %x", s->last_command); ret = -1; |