From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Hutchings Subject: [PATCH net-next 12/22] sfc: Document current usage of efx_rx_buffer::len and efx_nic::rx_buffer_len Date: Mon, 11 Mar 2013 19:55:53 +0000 Message-ID: <1363031753.2608.49.camel@bwh-desktop.uk.solarflarecom.com> References: <1363030400.2608.37.camel@bwh-desktop.uk.solarflarecom.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: , , To: David Miller Return-path: Received: from webmail.solarflare.com ([12.187.104.25]:16782 "EHLO webmail.solarflare.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754183Ab3CKTz4 (ORCPT ); Mon, 11 Mar 2013 15:55:56 -0400 In-Reply-To: <1363030400.2608.37.camel@bwh-desktop.uk.solarflarecom.com> Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/net_driver.h | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 9e90081..f74411f 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -209,7 +209,8 @@ struct efx_tx_queue { * @page: The associated page buffer. * Will be %NULL if the buffer slot is currently free. * @page_offset: Offset within page - * @len: Buffer length, in bytes. + * @len: If pending: length for DMA descriptor. + * If completed: received length, excluding hash prefix. * @flags: Flags for buffer and packet state. */ struct efx_rx_buffer { @@ -668,7 +669,8 @@ struct vfdi_status; * @n_channels: Number of channels in use * @n_rx_channels: Number of channels used for RX (= number of RX queues) * @n_tx_channels: Number of channels used for TX - * @rx_buffer_len: RX buffer length + * @rx_buffer_len: RX buffer length, including start alignment but excluding + * any metadata * @rx_buffer_order: Order (log2) of number of pages for each RX buffer * @rx_hash_key: Toeplitz hash key for RSS * @rx_indir_table: Indirection table for RSS -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked.