netdev - [PATCH] bna: Implement ethtool flash

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Date:	Tue, 31 Jan 2012 16:06:41 -0800
From:	<kgudipat@...cade.com>
To:	<davem@...emloft.net>, <netdev@...r.kernel.org>
CC:	<adapter_linux_open_src_team@...cade.com>, <kgudipat@...cade.com>
Subject: [PATCH] bna: Implement ethtool flash_device entry point.

From: Krishna Gudipati <kgudipat@...cade.com>

Change details:
	- Implement ethtool flash_device() entry point to write the
	  firmware image to the flash firmware partition.

Signed-off-by: Krishna Gudipati <kgudipat@...cade.com>
---
 drivers/net/ethernet/brocade/bna/bfa_defs.h     |    1 +
 drivers/net/ethernet/brocade/bna/bnad_ethtool.c |   36 +++++++++++++++++++++++
 2 files changed, 37 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/brocade/bna/bfa_defs.h b/drivers/net/ethernet/brocade/bna/bfa_defs.h
index 871c630..48f8773 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_defs.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_defs.h
@@ -297,6 +297,7 @@ enum bfa_mode {
 #define BFA_FLASH_PART_ENTRY_SIZE	32	/* partition entry size */
 #define BFA_FLASH_PART_MAX		32	/* maximal # of partitions */
 #define BFA_TOTAL_FLASH_SIZE		0x400000
+#define BFA_FLASH_PART_FWIMG		2
 #define BFA_FLASH_PART_MFG		7
 
 /*
diff --git a/drivers/net/ethernet/brocade/bna/bnad_ethtool.c b/drivers/net/ethernet/brocade/bna/bnad_ethtool.c
index 9b44ec8..3e18ee7 100644
--- a/drivers/net/ethernet/brocade/bna/bnad_ethtool.c
+++ b/drivers/net/ethernet/brocade/bna/bnad_ethtool.c
@@ -1072,6 +1072,41 @@ done:
 	return ret;
 }
 
+static int
+bnad_flash_device(struct net_device *netdev, struct ethtool_flash *eflash)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bnad_iocmd_comp fcomp;
+	const struct firmware *fw;
+	unsigned long flags = 0;
+	int ret = 0;
+
+	if (request_firmware(&fw, eflash->data, &bnad->pcidev->dev)) {
+		pr_err("Can't locate firmware %s\n", eflash->data);
+		goto out;
+	}
+
+	fcomp.bnad = bnad;
+	fcomp.comp_status = 0;
+
+	init_completion(&fcomp.comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	ret = bfa_nw_flash_update_part(&bnad->bna.flash, BFA_FLASH_PART_FWIMG,
+				bnad->id, (u8 *)fw->data, fw->size, 0,
+				bnad_cb_completion, &fcomp);
+	if (ret != BFA_STATUS_OK) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		goto out;
+	}
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&fcomp.comp);
+	ret = fcomp.comp_status;
+out:
+	release_firmware(fw);
+	return ret;
+}
+
 static const struct ethtool_ops bnad_ethtool_ops = {
 	.get_settings = bnad_get_settings,
 	.set_settings = bnad_set_settings,
@@ -1090,6 +1125,7 @@ static const struct ethtool_ops bnad_ethtool_ops = {
 	.get_eeprom_len = bnad_get_eeprom_len,
 	.get_eeprom = bnad_get_eeprom,
 	.set_eeprom = bnad_set_eeprom,
+	.flash_device = bnad_flash_device,
 };
 
 void
-- 
1.7.3.rc1

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