linux-kernel - RE: [PATCH v3] hv_netvsc: Allocate rx indirection table size dynamically

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Message-ID: <PH7PR21MB3116EB7385703A79CB81580DCA4BA@PH7PR21MB3116.namprd21.prod.outlook.com>
Date:   Tue, 30 May 2023 20:57:54 +0000
From:   Haiyang Zhang <haiyangz@...rosoft.com>
To:     Shradha Gupta <shradhagupta@...ux.microsoft.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
        Long Li <longli@...rosoft.com>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "David S. Miller" <davem@...emloft.net>,
        Steen Hegelund <steen.hegelund@...rochip.com>,
        Simon Horman <simon.horman@...igine.com>
Subject: RE: [PATCH v3] hv_netvsc: Allocate rx indirection table size
 dynamically



> -----Original Message-----
> From: Shradha Gupta <shradhagupta@...ux.microsoft.com>
> Sent: Friday, May 26, 2023 2:02 AM
> To: linux-kernel@...r.kernel.org; linux-hyperv@...r.kernel.org;
> netdev@...r.kernel.org
> Cc: Shradha Gupta <shradhagupta@...ux.microsoft.com>; Eric Dumazet
> <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni
> <pabeni@...hat.com>; KY Srinivasan <kys@...rosoft.com>; Haiyang Zhang
> <haiyangz@...rosoft.com>; Wei Liu <wei.liu@...nel.org>; Dexuan Cui
> <decui@...rosoft.com>; Long Li <longli@...rosoft.com>; Michael Kelley
> (LINUX) <mikelley@...rosoft.com>; David S. Miller <davem@...emloft.net>;
> Steen Hegelund <steen.hegelund@...rochip.com>; Simon Horman
> <simon.horman@...igine.com>
> Subject: [PATCH v3] hv_netvsc: Allocate rx indirection table size dynamically
> 
> Allocate the size of rx indirection table dynamically in netvsc
> from the value of size provided by OID_GEN_RECEIVE_SCALE_CAPABILITIES
> query instead of using a constant value of ITAB_NUM.
> 
> Signed-off-by: Shradha Gupta <shradhagupta@...ux.microsoft.com>
> Tested-on: Ubuntu22 (azure VM, SKU size: Standard_F72s_v2)
> Testcases:
> 1. ethtool -x eth0 output
> 2. LISA testcase:PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-
> NTTTCP-Synthetic
> 3. LISA testcase:PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-
> NTTTCP-SRIOV

Thank you!

Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>