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Message-ID: <PH0PR18MB473487A5D3872C9DC05D97F0C7BAA@PH0PR18MB4734.namprd18.prod.outlook.com>
Date:   Wed, 22 Nov 2023 16:15:37 +0000
From:   Shinas Rasheed <srasheed@...vell.com>
To:     Suman Ghosh <sumang@...vell.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Haseeb Gani <hgani@...vell.com>,
        Vimlesh Kumar <vimleshk@...vell.com>,
        "egallen@...hat.com" <egallen@...hat.com>,
        "mschmidt@...hat.com" <mschmidt@...hat.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "horms@...nel.org" <horms@...nel.org>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "wizhao@...hat.com" <wizhao@...hat.com>,
        "konguyen@...hat.com" <konguyen@...hat.com>,
        Veerasenareddy Burru <vburru@...vell.com>,
        Sathesh B Edara <sedara@...vell.com>,
        Eric Dumazet <edumazet@...gle.com>
Subject: RE: [EXT] [PATCH net-next v1] octeon_ep: get max rx packet length
 from firmware

Hi Suman

> -----Original Message-----
> From: Suman Ghosh <sumang@...vell.com>
> Sent: Wednesday, November 22, 2023 10:13 AM
> To: Shinas Rasheed <srasheed@...vell.com>; netdev@...r.kernel.org;
> linux-kernel@...r.kernel.org
> Cc: Haseeb Gani <hgani@...vell.com>; Vimlesh Kumar
> <vimleshk@...vell.com>; egallen@...hat.com; mschmidt@...hat.com;
> pabeni@...hat.com; horms@...nel.org; kuba@...nel.org;
> davem@...emloft.net; wizhao@...hat.com; konguyen@...hat.com;
> Shinas Rasheed <srasheed@...vell.com>; Veerasenareddy Burru
> <vburru@...vell.com>; Sathesh B Edara <sedara@...vell.com>; Eric
> Dumazet <edumazet@...gle.com>
> Subject: RE: [EXT] [PATCH net-next v1] octeon_ep: get max rx packet length
> from firmware
> >@@ -1346,8 +1347,15 @@ static int octep_probe(struct pci_dev *pdev,
> >const struct pci_device_id *ent)
> >
> > 	netdev->hw_features = NETIF_F_SG;
> > 	netdev->features |= netdev->hw_features;
> >+
> >+	max_rx_pktlen = octep_ctrl_net_get_mtu(octep_dev,
> >OCTEP_CTRL_NET_INVALID_VFID);
> >+	if (max_rx_pktlen < 0) {
> >+		dev_err(&octep_dev->pdev->dev,
> >+			"Failed to get max receive packet size; err = %d\n",
> >max_rx_pktlen);
> >+		goto register_dev_err;
> >+	}
> [Suman] Do we need to check if max_rx_pktlen <= OCTEP_MAX_MTU as
> well? If not, then this macro is not required further after the change?

I suppose we should check this.

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