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From: Herbert Xu <herbert@gondor.apana.org.au>
To: Yeshaswi M R Gowda <yeshaswi@chelsio.com>
Cc: hariprasad@chelsio.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, davem@davemloft.net,
	linux-crypto@vger.kernel.org, jlulla@chelsio.com,
	atul.gupta@chelsio.com, harsh@chelsio.com
Subject: Re: [PATCH 2/3] chcr: Support for Chelsio's Crypto Hardware
Date: Tue, 12 Jul 2016 16:35:52 +0800	[thread overview]
Message-ID: <20160712083552.GA29994@gondor.apana.org.au> (raw)
In-Reply-To: <1468261688-24525-3-git-send-email-yeshaswi@chelsio.com>

On Mon, Jul 11, 2016 at 11:28:07AM -0700, Yeshaswi M R Gowda wrote:
>
> +	u_ctx = ULD_CTX(ctx);
> +	if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], ctx->tx_channel_id))
> +		return -EBUSY;

You cannot just return -EBUSY.  If the request has the MAY_BACKLOG
bit set, it must be queued regardless, but you should return -EBUSY
in order to throttle the user and then call the completion function
with -EINPROGRESS once the queue can accept more requests from the
user.

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

  parent reply	other threads:[~2016-07-12  8:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-11 18:28 [PATCH 0/3] crypto/chcr: Add Chelsio Crypto Driver Yeshaswi M R Gowda
2016-07-11 18:28 ` [PATCH 1/3] cxgb4: Add Chelsio LLD support Chelsio Crypto ULD Yeshaswi M R Gowda
2016-07-11 18:28 ` [PATCH 2/3] chcr: Support for Chelsio's Crypto Hardware Yeshaswi M R Gowda
2016-07-11 18:57   ` Joe Perches
2016-07-12  8:35   ` Herbert Xu [this message]
2016-07-11 18:28 ` [PATCH 3/3] crypto: Added Chelsio Menu to the Kconfig file Yeshaswi M R Gowda
2016-07-11 19:30   ` kbuild test robot
2016-07-12  8:44     ` Herbert Xu
2016-07-12  0:14   ` kbuild test robot
2016-07-12  4:36   ` kbuild test robot

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