From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/net/ethernet/tehuti/tehuti.c | 94 +++++++++++++++++++++--------------------------
1 files changed, 42 insertions(+), 52 deletions(-)
diff --git a/kernel/drivers/net/ethernet/tehuti/tehuti.c b/kernel/drivers/net/ethernet/tehuti/tehuti.c
index 358f911..d054c6e 100644
--- a/kernel/drivers/net/ethernet/tehuti/tehuti.c
+++ b/kernel/drivers/net/ethernet/tehuti/tehuti.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Tehuti Networks(R) Network Driver
* ethtool interface implementation
* Copyright (C) 2007 Tehuti Networks Ltd. All rights reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
/*
@@ -142,7 +138,10 @@
* @priv: NIC private structure
* @f: fifo to initialize
* @fsz_type: fifo size type: 0-4KB, 1-8KB, 2-16KB, 3-32KB
- * @reg_XXX: offsets of registers relative to base address
+ * @reg_CFG0: offsets of registers relative to base address
+ * @reg_CFG1: offsets of registers relative to base address
+ * @reg_RPTR: offsets of registers relative to base address
+ * @reg_WPTR: offsets of registers relative to base address
*
* 1K extra space is allocated at the end of the fifo to simplify
* processing of descriptors that wraps around fifo's end
@@ -157,11 +156,11 @@
u16 memsz = FIFO_SIZE * (1 << fsz_type);
memset(f, 0, sizeof(struct fifo));
- /* pci_alloc_consistent gives us 4k-aligned memory */
- f->va = pci_alloc_consistent(priv->pdev,
- memsz + FIFO_EXTRA_SPACE, &f->da);
+ /* dma_alloc_coherent gives us 4k-aligned memory */
+ f->va = dma_alloc_coherent(&priv->pdev->dev, memsz + FIFO_EXTRA_SPACE,
+ &f->da, GFP_ATOMIC);
if (!f->va) {
- pr_err("pci_alloc_consistent failed\n");
+ pr_err("dma_alloc_coherent failed\n");
RET(-ENOMEM);
}
f->reg_CFG0 = reg_CFG0;
@@ -187,8 +186,8 @@
{
ENTER;
if (f->va) {
- pci_free_consistent(priv->pdev,
- f->memsz + FIFO_EXTRA_SPACE, f->va, f->da);
+ dma_free_coherent(&priv->pdev->dev,
+ f->memsz + FIFO_EXTRA_SPACE, f->va, f->da);
f->va = NULL;
}
RET();
@@ -562,7 +561,7 @@
/**
* bdx_close - Disables a network interface
- * @netdev: network interface device structure
+ * @ndev: network interface device structure
*
* Returns 0, this is not allowed to fail
*
@@ -589,7 +588,7 @@
/**
* bdx_open - Called when a network interface is made active
- * @netdev: network interface device structure
+ * @ndev: network interface device structure
*
* Returns 0 on success, negative value on failure
*
@@ -702,7 +701,7 @@
* __bdx_vlan_rx_vid - private helper for adding/killing VLAN vid
* @ndev: network device
* @vid: VLAN vid
- * @op: add or kill operation
+ * @enable: enable or disable vlan
*
* Passes VLAN filter table to hardware
*/
@@ -733,6 +732,7 @@
/**
* bdx_vlan_rx_add_vid - kernel hook for adding VLAN vid to hw filtering table
* @ndev: network device
+ * @proto: unused
* @vid: VLAN vid to add
*/
static int bdx_vlan_rx_add_vid(struct net_device *ndev, __be16 proto, u16 vid)
@@ -744,6 +744,7 @@
/**
* bdx_vlan_rx_kill_vid - kernel hook for killing VLAN vid in hw filtering table
* @ndev: network device
+ * @proto: unused
* @vid: VLAN vid to kill
*/
static int bdx_vlan_rx_kill_vid(struct net_device *ndev, __be16 proto, u16 vid)
@@ -754,7 +755,7 @@
/**
* bdx_change_mtu - Change the Maximum Transfer Unit
- * @netdev: network interface device structure
+ * @ndev: network interface device structure
* @new_mtu: new value for maximum frame size
*
* Returns 0 on success, negative on failure
@@ -1037,9 +1038,8 @@
for (i = 0; i < db->nelem; i++) {
dm = bdx_rxdb_addr_elem(db, i);
if (dm->dma) {
- pci_unmap_single(priv->pdev,
- dm->dma, f->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pdev->dev, dm->dma,
+ f->m.pktsz, DMA_FROM_DEVICE);
dev_kfree_skb(dm->skb);
}
}
@@ -1101,9 +1101,8 @@
idx = bdx_rxdb_alloc_elem(db);
dm = bdx_rxdb_addr_elem(db, idx);
- dm->dma = pci_map_single(priv->pdev,
- skb->data, f->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dm->dma = dma_map_single(&priv->pdev->dev, skb->data,
+ f->m.pktsz, DMA_FROM_DEVICE);
dm->skb = skb;
rxfd = (struct rxf_desc *)(f->m.va + f->m.wptr);
rxfd->info = CPU_CHIP_SWAP32(0x10003); /* INFO=1 BC=3 */
@@ -1263,16 +1262,15 @@
(skb2 = netdev_alloc_skb(priv->ndev, len + NET_IP_ALIGN))) {
skb_reserve(skb2, NET_IP_ALIGN);
/*skb_put(skb2, len); */
- pci_dma_sync_single_for_cpu(priv->pdev,
- dm->dma, rxf_fifo->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_sync_single_for_cpu(&priv->pdev->dev, dm->dma,
+ rxf_fifo->m.pktsz,
+ DMA_FROM_DEVICE);
memcpy(skb2->data, skb->data, len);
bdx_recycle_skb(priv, rxdd);
skb = skb2;
} else {
- pci_unmap_single(priv->pdev,
- dm->dma, rxf_fifo->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pdev->dev, dm->dma,
+ rxf_fifo->m.pktsz, DMA_FROM_DEVICE);
bdx_rxdb_free_elem(db, rxdd->va_lo);
}
@@ -1365,18 +1363,6 @@
* This technique avoids eccessive reading of RPTR and WPTR registers.
* As our benchmarks shows, it adds 1.5 Gbit/sec to NIS's throuput.
*/
-
-/*************************************************************************
- * Tx DB *
- *************************************************************************/
-static inline int bdx_tx_db_size(struct txdb *db)
-{
- int taken = db->wptr - db->rptr;
- if (taken < 0)
- taken = db->size + 1 + taken; /* (size + 1) equals memsz */
-
- return db->size - taken;
-}
/**
* __bdx_tx_db_ptr_next - helper function, increment read/write pointer + wrap
@@ -1494,8 +1480,8 @@
int i;
db->wptr->len = skb_headlen(skb);
- db->wptr->addr.dma = pci_map_single(priv->pdev, skb->data,
- db->wptr->len, PCI_DMA_TODEVICE);
+ db->wptr->addr.dma = dma_map_single(&priv->pdev->dev, skb->data,
+ db->wptr->len, DMA_TO_DEVICE);
pbl->len = CPU_CHIP_SWAP32(db->wptr->len);
pbl->pa_lo = CPU_CHIP_SWAP32(L32_64(db->wptr->addr.dma));
pbl->pa_hi = CPU_CHIP_SWAP32(H32_64(db->wptr->addr.dma));
@@ -1505,7 +1491,7 @@
bdx_tx_db_inc_wptr(db);
for (i = 0; i < nr_frags; i++) {
- const struct skb_frag_struct *frag;
+ const skb_frag_t *frag;
frag = &skb_shinfo(skb)->frags[i];
db->wptr->len = skb_frag_size(frag);
@@ -1732,14 +1718,14 @@
BDX_ASSERT(db->rptr->len == 0);
do {
BDX_ASSERT(db->rptr->addr.dma == 0);
- pci_unmap_page(priv->pdev, db->rptr->addr.dma,
- db->rptr->len, PCI_DMA_TODEVICE);
+ dma_unmap_page(&priv->pdev->dev, db->rptr->addr.dma,
+ db->rptr->len, DMA_TO_DEVICE);
bdx_tx_db_inc_rptr(db);
} while (db->rptr->len > 0);
tx_level -= db->rptr->len; /* '-' koz len is negative */
/* now should come skb pointer - free it */
- dev_kfree_skb_irq(db->rptr->addr.skb);
+ dev_consume_skb_irq(db->rptr->addr.skb);
bdx_tx_db_inc_rptr(db);
}
@@ -1772,6 +1758,8 @@
/**
* bdx_tx_free_skbs - frees all skbs from TXD fifo.
+ * @priv: NIC private structure
+ *
* It gets called when OS stops this dev, eg upon "ifconfig down" or rmmod
*/
static void bdx_tx_free_skbs(struct bdx_priv *priv)
@@ -1781,8 +1769,8 @@
ENTER;
while (db->rptr != db->wptr) {
if (likely(db->rptr->len))
- pci_unmap_page(priv->pdev, db->rptr->addr.dma,
- db->rptr->len, PCI_DMA_TODEVICE);
+ dma_unmap_page(&priv->pdev->dev, db->rptr->addr.dma,
+ db->rptr->len, DMA_TO_DEVICE);
else
dev_kfree_skb(db->rptr->addr.skb);
bdx_tx_db_inc_rptr(db);
@@ -1918,12 +1906,12 @@
if (err) /* it triggers interrupt, dunno why. */
goto err_pci; /* it's not a problem though */
- if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) &&
- !(err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))) {
+ if (!(err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) &&
+ !(err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)))) {
pci_using_dac = 1;
} else {
- if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
- (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
+ if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) ||
+ (err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)))) {
pr_err("No usable DMA configuration, aborting\n");
goto err_dma;
}
@@ -2378,6 +2366,8 @@
static void bdx_set_ethtool_ops(struct net_device *netdev)
{
static const struct ethtool_ops bdx_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+ ETHTOOL_COALESCE_MAX_FRAMES,
.get_drvinfo = bdx_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_coalesce = bdx_get_coalesce,
--
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