From patchwork Mon Oct 13 20:13:10 2008 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: stephen hemminger X-Patchwork-Id: 4345 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id D4C7BDDEE7 for ; Tue, 14 Oct 2008 08:04:14 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755576AbYJMVD5 (ORCPT ); Mon, 13 Oct 2008 17:03:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755543AbYJMVD4 (ORCPT ); Mon, 13 Oct 2008 17:03:56 -0400 Received: from suva.vyatta.com ([76.74.103.44]:40284 "EHLO suva.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755415AbYJMVDv (ORCPT ); Mon, 13 Oct 2008 17:03:51 -0400 Received: from suva.vyatta.com (suva [127.0.0.1]) by suva.vyatta.com (8.13.7/8.13.7) with ESMTP id m9DL3d5t010577; Mon, 13 Oct 2008 14:03:39 -0700 Received: (from shemminger@localhost) by suva.vyatta.com (8.13.7/8.13.7/Submit) id m9DL3dXo010576; Mon, 13 Oct 2008 14:03:39 -0700 Message-Id: <20081013201453.344338423@vyatta.com> References: <20081013201302.899587376@vyatta.com> User-Agent: quilt/0.46-1 Date: Mon, 13 Oct 2008 13:13:10 -0700 From: Stephen Hemminger To: David Miller , Jeff Garzik Cc: netdev@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH 8/9] skge: add VPD display into debug interface Content-Disposition: inline; filename=skge-vpd-debug.patch Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The VPD stuff has more data and useful only when debugging. Signed-off-by: Stephen Hemminger --- a/drivers/net/skge.c 2008-10-13 13:04:10.000000000 -0700 +++ b/drivers/net/skge.c 2008-10-13 13:04:16.000000000 -0700 @@ -3670,19 +3670,102 @@ static int skge_reset(struct skge_hw *hw static struct dentry *skge_debug; +/* + * Read and parse the first part of Vital Product Data + */ +#define VPD_SIZE 128 +#define VPD_MAGIC 0x82 + +static const struct vpd_tag { + char tag[2]; + char *label; +} vpd_tags[] = { + { "PN", "Part Number" }, + { "EC", "Engineering Level" }, + { "MN", "Manufacturer" }, + { "SN", "Serial Number" }, + { "YA", "Asset Tag" }, + { "VL", "First Error Log Message" }, + { "VF", "Second Error Log Message" }, + { "VB", "Boot Agent ROM Configuration" }, + { "VE", "EFI UNDI Configuration" }, +}; + +static void skge_show_vpd(struct seq_file *seq, struct skge_hw *hw) +{ + size_t vpd_size; + loff_t offs; + u8 len; + unsigned char *buf; + u32 reg2; + + pci_read_config_dword(hw->pdev, PCI_DEV_REG2, ®2); + vpd_size = 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); + + seq_printf(seq, "%s Product Data\n", pci_name(hw->pdev)); + buf = kmalloc(vpd_size, GFP_KERNEL); + if (!buf) { + seq_puts(seq, "no memory!\n"); + return; + } + + if (pci_read_vpd(hw->pdev, 0, vpd_size, buf) < 0) { + seq_puts(seq, "VPD read failed\n"); + goto out; + } + + if (buf[0] != VPD_MAGIC) { + seq_printf(seq, "VPD tag mismatch: %#x\n", buf[0]); + goto out; + } + len = buf[1]; + if (len == 0 || len > vpd_size - 4) { + seq_printf(seq, "Invalid id length: %d\n", len); + goto out; + } + + seq_printf(seq, "%.*s\n", len, buf + 3); + offs = len + 3; + + while (offs < vpd_size - 4) { + int i; + + if (!memcmp("RW", buf + offs, 2)) /* end marker */ + break; + len = buf[offs + 2]; + if (offs + len + 3 >= vpd_size) + break; + + for (i = 0; i < ARRAY_SIZE(vpd_tags); i++) { + if (!memcmp(vpd_tags[i].tag, buf + offs, 2)) { + seq_printf(seq, " %s: %.*s\n", + vpd_tags[i].label, len, buf + offs + 3); + break; + } + } + offs += len + 3; + } +out: + kfree(buf); +} + static int skge_debug_show(struct seq_file *seq, void *v) { struct net_device *dev = seq->private; const struct skge_port *skge = netdev_priv(dev); - const struct skge_hw *hw = skge->hw; + struct skge_hw *hw = skge->hw; const struct skge_element *e; - if (!netif_running(dev)) - return -ENETDOWN; + skge_show_vpd(seq, hw); seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC), skge_read32(hw, B0_IMSK)); + if (!netif_running(dev)) { + seq_printf(seq, "network not running\n"); + return 0; + } + seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring)); for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { const struct skge_tx_desc *t = e->desc;