linux-kernel - Re: [PATCH net v4 4/4] tg3: Fix tx_pending checks for tg3_tso

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 28 Aug 2014 19:45:43 -0700
From:	Prashant Sreedharan <prashant@...adcom.com>
To:	Benjamin Poirier <bpoirier@...e.de>
CC:	Michael Chan <mchan@...adcom.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net v4 4/4] tg3: Fix tx_pending checks for tg3_tso_bug


>  	if (netif_running(dev)) {
> @@ -12346,8 +12380,15 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e
>  	if (tg3_flag(tp, JUMBO_RING_ENABLE))
>  		tp->rx_jumbo_pending = ering->rx_jumbo_pending;
>  
> -	for (i = 0; i < tp->irq_max; i++)
> -		tp->napi[i].tx_pending = ering->tx_pending;
> +	dev->gso_max_segs = TG3_TX_SEG_PER_DESC(ering->tx_pending - 1);
> +	for (i = 0; i < tp->irq_max; i++) {
> +		struct tg3_napi *tnapi = &tp->napi[i];
> +
> +		tnapi->tx_pending = ering->tx_pending;
> +		if (netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)) &&
> +		    tnapi->wakeup_thresh >= ering->tx_pending)
> +			tnapi->wakeup_thresh = MAX_SKB_FRAGS + 1;

To maintain consistency wakeup_thresh can be set to TG3_TX_WAKEUP_THRESH
similar to other parts of the code, except the special handling of
tg3_tso_bug() estimate.
 
> +	}
>  
>  	if (netif_running(dev)) {
>  		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
> @@ -17822,6 +17863,7 @@ static int tg3_init_one(struct pci_dev *pdev,
>  		else
>  			sndmbx += 0xc;
>  	}


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/