From c469669ef7b4ee2ec1e0db0053ada6809c5b5f98 Mon Sep 17 00:00:00 2001 From: Miao Yan Date: Tue, 22 Dec 2015 22:06:08 -0800 Subject: 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 Reviewed-by: Dmitry Fleytman Signed-off-by: Jason Wang --- hw/net/vmxnet3.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'hw/net/vmxnet3.c') diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c index 8a992d3..0aff0d4 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; -- cgit v1.1