tree a78125a35d5a277d395003651b4241eafc7dd52d
parent f470f8d4e702593ee1d0852871ad80373bce707b
author Or Gerlitz <ogerlitz@mellanox.com> 1320358786 +0200
committer Roland Dreier <roland@purestorage.com> 1320424252 -0700

IB/iser: Use separate buffers for the login request/response

The driver counted on the transactional nature of iSCSI login/text
flows and used the same buffer for both the request and the response.
We also went further and did DMA mapping only once, with
DMA_FROM_DEVICE, which violates the DMA mapping API.  Fix that by
using different buffers, one for requests and one for responses, and
use the correct DMA mapping direction for each.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>