From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Mugunthan V N <mugunthanvnm@ti.com>
Cc: netdev@vger.kernel.org, tglx@linutronix.de,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 3/5 v2] net/cpsw: don't rely only on netif_running() to check which device is active
Date: Mon, 22 Apr 2013 12:19:37 +0200 [thread overview]
Message-ID: <51750EB9.6090009@linutronix.de> (raw)
In-Reply-To: <51750D1B.4060600@ti.com>
On 04/22/2013 12:12 PM, Mugunthan V N wrote:
>
> Yes, when interrupt is disabled in hardware then interrupt must be
> disabled.
> In my initial days i have verified it, CPSW doesn't allow any new
> interrupts to
> propagate to arm if CPSW interrupt is disabled which is correct. CPSW irq
> signal is not directly connected to irq controller, it is connected via
> edge to
> level conversion so it is a kind of latched interrupt and so the
> interrupt has
> to be disabled in interrupt controller to disable the interrupt, else
> arm get
> blocked in CPSW ISR.
>
> This behavior is not only in AM335x CPSW, it is as is from its previous
> versions in TI814x and TI8107.
And I don't see this on ES1.0 because they forgot to add the
edge-to-level converter?
> Regards
> Mugunthan V N
Sebastian
next prev parent reply other threads:[~2013-04-22 10:19 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-17 21:52 my small cpsw queue Sebastian Andrzej Siewior
2013-04-17 21:52 ` [PATCH 1/5] net/davinci_cpdma: don't check for jiffies with interrupts Sebastian Andrzej Siewior
2013-04-18 11:49 ` Mugunthan V N
2013-04-17 21:52 ` [PATCH 2/5] net/cpsw: don't continue if we miss to allocate rx skbs Sebastian Andrzej Siewior
2013-04-18 11:50 ` Mugunthan V N
2013-04-18 12:09 ` Sebastian Andrzej Siewior
2013-04-19 10:40 ` Mugunthan V N
2013-04-22 8:05 ` Sebastian Andrzej Siewior
2013-04-17 21:52 ` [PATCH 3/5] net/cpsw: don't rely on netif_running() to check which device is active Sebastian Andrzej Siewior
2013-04-18 11:50 ` Mugunthan V N
2013-04-18 12:10 ` Sebastian Andrzej Siewior
2013-04-19 10:35 ` Mugunthan V N
2013-04-22 8:30 ` [PATCH 3/5 v2] net/cpsw: don't rely only " Sebastian Andrzej Siewior
2013-04-22 9:14 ` Mugunthan V N
2013-04-22 9:30 ` Sebastian Andrzej Siewior
2013-04-22 9:40 ` Mugunthan V N
2013-04-22 9:49 ` Sebastian Andrzej Siewior
2013-04-22 10:12 ` Mugunthan V N
2013-04-22 10:19 ` Sebastian Andrzej Siewior [this message]
2013-04-22 19:21 ` David Miller
2013-04-19 13:10 ` [PATCH 3/5] net/cpsw: don't rely " Sergei Shtylyov
2013-04-22 8:33 ` Sebastian Andrzej Siewior
2013-04-17 21:52 ` [PATCH 4/5] net/davinci_cpdma: remove unused argument in cpdma_chan_submit() Sebastian Andrzej Siewior
2013-04-18 11:51 ` Mugunthan V N
2013-04-17 21:52 ` [PATCH 5/5] net/cpsw: redo rx skb allocation in rx path Sebastian Andrzej Siewior
2013-04-18 11:50 ` Mugunthan V N
2013-04-18 12:13 ` Sebastian Andrzej Siewior
2013-04-19 10:28 ` Mugunthan V N
2013-04-18 14:59 ` Eric Dumazet
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