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Date: Mon, 11 Mar 2013 19:55:53 +0000 From: Ben Hutchings <bhutchings@...arflare.com> To: David Miller <davem@...emloft.net> CC: <netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>, <scrum-linux@...arflare.com> Subject: [PATCH net-next 12/22] sfc: Document current usage of efx_rx_buffer::len and efx_nic::rx_buffer_len Signed-off-by: Ben Hutchings <bhutchings@...arflare.com> --- 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. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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