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Date: Fri, 16 Oct 2009 21:31:25 +0100
From: Ben Hutchings <bhutchings@...arflare.com>
To: Rasesh Mody <rmody@...cade.com>
Cc: netdev@...r.kernel.org, amathur@...cade.com
Subject: Re: Subject: [PATCH 2/6] bna: Brocade 10Gb Ethernet device driver
On Fri, 2009-10-16 at 11:24 -0700, Rasesh Mody wrote:
> From: Rasesh Mody <rmody@...cade.com>
>
> This is patch 2/6 which contains linux driver source for
> Brocade's BR1010/BR1020 10Gb CEE capable ethernet adapter.
>
> We wish this patch to be considered for inclusion in 2.6.32
>
> Signed-off-by: Rasesh Mody <rmody@...cade.com>
> ---
> bfa_timer.c | 97 ++
> bfad_fwimg.c | 102 ++
> bna_fn.c | 1991 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> bna_queue.c | 496 ++++++++++++++
> bnad_ethtool.c | 1101 +++++++++++++++++++++++++++++++
> 5 files changed, 3787 insertions(+)
>
> diff -ruP linux-2.6.32-rc4-orig/drivers/net/bna/bfad_fwimg.c linux-2.6.32-rc4-mod/drivers/net/bna/bfad_fwimg.c
> --- linux-2.6.32-rc4-orig/drivers/net/bna/bfad_fwimg.c 1969-12-31 16:00:00.000000000 -0800
> +++ linux-2.6.32-rc4-mod/drivers/net/bna/bfad_fwimg.c 2009-10-16 10:30:53.222438000 -0700
> @@ -0,0 +1,102 @@
> +/*
> + * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
> + * All rights reserved
> + * www.brocade.com
> + *
> + * Linux network driver for Brocade Converged Network Adapter.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License (GPL) Version 2 as
> + * published by the Free Software Foundation
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +/*
> + * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
> + * All rights reserved
> + * www.brocade.com
> + *
> + * See LICENSE.bna for copyright and licensing details.
> + */
I suppose this second copyright banner refers to the firmware itself,
which you have correctly separated from the driver. You should probably
remove it to avoid confusion.
> +/**
> + * bfad_fwimg.c Linux driver PCI interface module.
> + */
> +#include <bfa_os_inc.h>
> +#include <defs/bfa_defs_version.h>
> +#include <defs/bfa_defs_pci.h>
> +#include <linux/errno.h>
> +#include <linux/sched.h>
> +#include <linux/init.h>
> +#include <linux/fs.h>
> +#include <asm/uaccess.h>
> +#include <asm/fcntl.h>
> +#include <linux/pci.h>
> +#include <linux/firmware.h>
> +#include <bfa_fwimg_priv.h>
> +
> +u32 bfi_image_ct_size;
> +u32 bfi_image_cb_size;
> +u32 *bfi_image_ct;
> +u32 *bfi_image_cb;
> +
> +
> +#define BFAD_FW_FILE_CT "ctfw.bin"
> +#define BFAD_FW_FILE_CB "cbfw.bin"
> +
> +u32 *
> +bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
> + u32 *bfi_image_size, char *fw_name)
> +{
> + const struct firmware *fw;
> +
> + if (request_firmware(&fw, fw_name, &pdev->dev)) {
> + printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
> + goto error;
> + }
> +
> + *bfi_image = vmalloc(fw->size);
> + if (NULL == *bfi_image) {
> + printk(KERN_ALERT "Fail to allocate buffer for fw image "
> + "size=%x!\n", (u32) fw->size);
> + goto error;
> + }
> +
> + memcpy(*bfi_image, fw->data, fw->size);
This makes a completely pointless copy and then leaks the original
version. Get rid of the copy and stash the struct firmware pointer to
be freed later.
[...]
> diff -ruP linux-2.6.32-rc4-orig/drivers/net/bna/bnad_ethtool.c linux-2.6.32-rc4-mod/drivers/net/bna/bnad_ethtool.c
> --- linux-2.6.32-rc4-orig/drivers/net/bna/bnad_ethtool.c 1969-12-31 16:00:00.000000000 -0800
> +++ linux-2.6.32-rc4-mod/drivers/net/bna/bnad_ethtool.c 2009-10-16 10:30:53.269441000 -0700
[...]
> +static int bnad_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
> +{
> + struct bnad *bnad = netdev_priv(netdev);
> + struct bna_port_param port_param;
> +
> + bnad_lock();
> + spin_lock_irq(&bnad->priv_lock);
> + bna_port_param_get(bnad->priv, &port_param);
> + spin_unlock_irq(&bnad->priv_lock);
> +
> + if (port_param.speed == BNA_LINK_SPEED_10Gbps) {
> + cmd->supported = SUPPORTED_10000baseT_Full;
> + cmd->advertising = ADVERTISED_10000baseT_Full;
10GBASE-R and twinax are not 10GBASE-T!
> + }
> +
> + if (port_param.autoneg) {
> + cmd->supported |= SUPPORTED_Autoneg;
> + cmd->advertising |= ADVERTISED_Autoneg;
> + cmd->autoneg = AUTONEG_ENABLE;
But you don't support autonegotiation.
[...]
> +/* XXX use get_sset_count */
> +static int bnad_get_stats_count(struct net_device *netdev)
[...]
Yes, delete this function.
I didn't look further.
Ben.
--
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.
--
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