linux-kernel - RE: [PATCH net-next 2/4] net: mana: Report OS info to the PF driver

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Message-ID: <BYAPR21MB127031948D2C6E22F8EC805ABF8A9@BYAPR21MB1270.namprd21.prod.outlook.com>
Date:   Mon, 1 Nov 2021 06:07:22 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Haiyang Zhang <haiyangz@...rosoft.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "gustavoars@...nel.org" <gustavoars@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     KY Srinivasan <kys@...rosoft.com>,
        "stephen@...workplumber.org" <stephen@...workplumber.org>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        Shachar Raindel <shacharr@...rosoft.com>,
        Paul Rosswurm <paulros@...rosoft.com>,
        "olaf@...fle.de" <olaf@...fle.de>, vkuznets <vkuznets@...hat.com>
Subject: RE: [PATCH net-next 2/4] net: mana: Report OS info to the PF driver

> From: Haiyang Zhang <haiyangz@...rosoft.com>
> Sent: Saturday, October 30, 2021 8:36 AM
> > @@ -848,6 +850,15 @@ int mana_gd_verify_vf_version(struct pci_dev
> *pdev)
> >  	req.gd_drv_cap_flags3 = GDMA_DRV_CAP_FLAGS3;
> >  	req.gd_drv_cap_flags4 = GDMA_DRV_CAP_FLAGS4;
> >
> > +	req.drv_ver = 0;	/* Unused*/
> > +	req.os_type = 0x10;	/* Linux */
> 
> Instead of a magic number, could you define it as a macro?
> 
> Other parts look fine.
> 
> Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>

Ok, I'll apply the below change in v2.

@@ -497,6 +497,7 @@ enum {

 #define GDMA_DRV_CAP_FLAGS4 0

+#define GDMA_OS_TYPE_LINUX      0x10
 struct gdma_verify_ver_req {
        struct gdma_req_hdr hdr;

diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index c96ac81212f7..bea218c5c043 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -851,7 +851,7 @@ int mana_gd_verify_vf_version(struct pci_dev *pdev)
        req.gd_drv_cap_flags4 = GDMA_DRV_CAP_FLAGS4;

        req.drv_ver = 0;        /* Unused*/
-       req.os_type = 0x10;     /* Linux */
+       req.os_type = GDMA_OS_TYPE_LINUX;
        req.os_ver_major = LINUX_VERSION_MAJOR;
        req.os_ver_minor = LINUX_VERSION_PATCHLEVEL;
        req.os_ver_build = LINUX_VERSION_SUBLEVEL;