From e636c8d336489bf3eed5878299e6cc045bbad077 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:17:29 +0000
Subject: [PATCH] debug lk
---
kernel/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c | 126 +++++++++++++++++++----------------------
1 files changed, 58 insertions(+), 68 deletions(-)
diff --git a/kernel/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c b/kernel/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
index c8d0b10..252fe06 100644
--- a/kernel/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
+++ b/kernel/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c
@@ -1,35 +1,5 @@
-/*
- * Copyright (C) 2015-2017 Netronome Systems, Inc.
- *
- * This software is dual licensed under the GNU General License Version 2,
- * June 1991 as shown in the file COPYING in the top-level directory of this
- * source tree or the BSD 2-Clause License provided below. You have the
- * option to license this software under the complete terms of either license.
- *
- * The BSD 2-Clause License:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * 1. Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
/*
* nfp6000_pcie.c
@@ -138,6 +108,7 @@
/* The number of explicit BARs to reserve.
* Minimum is 0, maximum is 4 on the NFP6000.
+ * The NFP3800 can have only one per PF.
*/
#define NFP_PCIE_EXPLICIT_BARS 2
@@ -369,12 +340,12 @@
switch (maptype) {
case NFP_PCIE_BAR_PCIE2CPP_MapType_TARGET:
bartok = -1;
- /* FALLTHROUGH */
+ fallthrough;
case NFP_PCIE_BAR_PCIE2CPP_MapType_BULK:
baract = NFP_CPP_ACTION_RW;
if (act == 0)
act = NFP_CPP_ACTION_RW;
- /* FALLTHROUGH */
+ fallthrough;
case NFP_PCIE_BAR_PCIE2CPP_MapType_FIXED:
break;
default:
@@ -589,8 +560,8 @@
NFP_PCIE_BAR_PCIE2CPP_MapType_EXPLICIT3),
};
char status_msg[196] = {};
+ int i, err, bars_free;
struct nfp_bar *bar;
- int i, bars_free;
int expl_groups;
char *msg, *end;
@@ -640,10 +611,12 @@
/* Configure, and lock, BAR0.0 for General Target use (MSI-X SRAM) */
bar = &nfp->bar[0];
if (nfp_bar_resource_len(bar) >= NFP_PCI_MIN_MAP_SIZE)
- bar->iomem = ioremap_nocache(nfp_bar_resource_start(bar),
+ bar->iomem = ioremap(nfp_bar_resource_start(bar),
nfp_bar_resource_len(bar));
if (bar->iomem) {
- msg += snprintf(msg, end - msg, "0.0: General/MSI-X SRAM, ");
+ int pf;
+
+ msg += scnprintf(msg, end - msg, "0.0: General/MSI-X SRAM, ");
atomic_inc(&bar->refcnt);
bars_free--;
@@ -651,26 +624,44 @@
nfp->expl.data = bar->iomem + NFP_PCIE_SRAM + 0x1000;
- if (nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP4000 ||
- nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000) {
- nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(0);
- } else {
- int pf = nfp->pdev->devfn & 7;
-
+ switch (nfp->pdev->device) {
+ case PCI_DEVICE_ID_NETRONOME_NFP3800:
+ pf = nfp->pdev->devfn & 7;
nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(pf);
+ break;
+ case PCI_DEVICE_ID_NETRONOME_NFP4000:
+ case PCI_DEVICE_ID_NETRONOME_NFP5000:
+ case PCI_DEVICE_ID_NETRONOME_NFP6000:
+ nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(0);
+ break;
+ default:
+ dev_err(nfp->dev, "Unsupported device ID: %04hx!\n",
+ nfp->pdev->device);
+ err = -EINVAL;
+ goto err_unmap_bar0;
}
nfp->iomem.em = bar->iomem + NFP_PCIE_EM;
}
- if (nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP4000 ||
- nfp->pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000)
- expl_groups = 4;
- else
+ switch (nfp->pdev->device) {
+ case PCI_DEVICE_ID_NETRONOME_NFP3800:
expl_groups = 1;
+ break;
+ case PCI_DEVICE_ID_NETRONOME_NFP4000:
+ case PCI_DEVICE_ID_NETRONOME_NFP5000:
+ case PCI_DEVICE_ID_NETRONOME_NFP6000:
+ expl_groups = 4;
+ break;
+ default:
+ dev_err(nfp->dev, "Unsupported device ID: %04hx!\n",
+ nfp->pdev->device);
+ err = -EINVAL;
+ goto err_unmap_bar0;
+ }
/* Configure, and lock, BAR0.1 for PCIe XPB (MSI-X PBA) */
bar = &nfp->bar[1];
- msg += snprintf(msg, end - msg, "0.1: PCIe XPB/MSI-X PBA, ");
+ msg += scnprintf(msg, end - msg, "0.1: PCIe XPB/MSI-X PBA, ");
atomic_inc(&bar->refcnt);
bars_free--;
@@ -686,11 +677,11 @@
}
bar = &nfp->bar[4 + i];
- bar->iomem = ioremap_nocache(nfp_bar_resource_start(bar),
+ bar->iomem = ioremap(nfp_bar_resource_start(bar),
nfp_bar_resource_len(bar));
if (bar->iomem) {
- msg += snprintf(msg, end - msg,
- "0.%d: Explicit%d, ", 4 + i, i);
+ msg += scnprintf(msg, end - msg,
+ "0.%d: Explicit%d, ", 4 + i, i);
atomic_inc(&bar->refcnt);
bars_free--;
@@ -711,6 +702,11 @@
dev_info(nfp->dev, "%sfree: %d/%d\n", status_msg, bars_free, nfp->bars);
return 0;
+
+err_unmap_bar0:
+ if (nfp->bar[0].iomem)
+ iounmap(nfp->bar[0].iomem);
+ return err;
}
static void disable_bars(struct nfp6000_pcie *nfp)
@@ -862,7 +858,7 @@
priv->iomem = priv->bar->iomem + priv->bar_offset;
else
/* Must have been too big. Sub-allocate. */
- priv->iomem = ioremap_nocache(priv->phys, priv->size);
+ priv->iomem = ioremap(priv->phys, priv->size);
if (IS_ERR_OR_NULL(priv->iomem)) {
dev_err(nfp->dev, "Can't ioremap() a %d byte region of BAR %d\n",
@@ -1251,19 +1247,16 @@
static int nfp6000_read_serial(struct device *dev, u8 *serial)
{
struct pci_dev *pdev = to_pci_dev(dev);
- int pos;
- u32 reg;
+ u64 dsn;
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN);
- if (!pos) {
+ dsn = pci_get_dsn(pdev);
+ if (!dsn) {
dev_err(dev, "can't find PCIe Serial Number Capability\n");
return -EINVAL;
}
- pci_read_config_dword(pdev, pos + 4, ®);
- put_unaligned_be16(reg >> 16, serial + 4);
- pci_read_config_dword(pdev, pos + 8, ®);
- put_unaligned_be32(reg, serial);
+ put_unaligned_be32((u32)(dsn >> 32), serial);
+ put_unaligned_be16((u16)(dsn >> 16), serial + 4);
return 0;
}
@@ -1271,18 +1264,15 @@
static int nfp6000_get_interface(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
- int pos;
- u32 reg;
+ u64 dsn;
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DSN);
- if (!pos) {
+ dsn = pci_get_dsn(pdev);
+ if (!dsn) {
dev_err(dev, "can't find PCIe Serial Number Capability\n");
return -EINVAL;
}
- pci_read_config_dword(pdev, pos + 4, ®);
-
- return reg & 0xffff;
+ return dsn & 0xffff;
}
static const struct nfp_cpp_operations nfp6000_pcie_ops = {
@@ -1327,7 +1317,7 @@
/* Finished with card initialization. */
dev_info(&pdev->dev,
- "Netronome Flow Processor NFP4000/NFP6000 PCIe Card Probe\n");
+ "Netronome Flow Processor NFP4000/NFP5000/NFP6000 PCIe Card Probe\n");
pcie_print_link_status(pdev);
nfp = kzalloc(sizeof(*nfp), GFP_KERNEL);
--
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