Re: [PATCH 2/3] chcr: Support for Chelsio's Crypto Hardware

From: Herbert Xu
Date: Tue Jul 12 2016 - 04:36:06 EST

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

Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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