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6d3fbf2818
These 2 trivial patches will be followed by a bigger bgmac rework so they are worth backporting in a separated patch. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
113 lines
4.2 KiB
Diff
113 lines
4.2 KiB
Diff
From a0b68486f6f680c7c0352a47c60042d7d95ffd87 Mon Sep 17 00:00:00 2001
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From: Jon Mason <jon.mason@broadcom.com>
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Date: Thu, 7 Jul 2016 19:08:54 -0400
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Subject: [PATCH 2/5] net: ethernet: bgmac: add dma_dev pointer
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The dma buffer allocation, etc references a dma_dev device pointer from
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the bcma core. In anticipation of removing the bcma requirement for
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this driver, these must be changed to not reference that struct. Add a
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dma_dev device pointer to the bgmac stuct and reference that instead.
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Signed-off-by: Jon Mason <jon.mason@broadcom.com>
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Acked-by: Arnd Bergmann <arnd@arndb.de>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Tested-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/broadcom/bgmac.c | 17 +++++++++--------
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drivers/net/ethernet/broadcom/bgmac.h | 1 +
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2 files changed, 10 insertions(+), 8 deletions(-)
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--- a/drivers/net/ethernet/broadcom/bgmac.c
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+++ b/drivers/net/ethernet/broadcom/bgmac.c
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@@ -152,7 +152,7 @@ static netdev_tx_t bgmac_dma_tx_add(stru
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struct bgmac_dma_ring *ring,
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struct sk_buff *skb)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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struct net_device *net_dev = bgmac->net_dev;
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int index = ring->end % BGMAC_TX_RING_SLOTS;
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struct bgmac_slot_info *slot = &ring->slots[index];
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@@ -254,7 +254,7 @@ err_drop:
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/* Free transmitted packets */
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static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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int empty_slot;
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bool freed = false;
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unsigned bytes_compl = 0, pkts_compl = 0;
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@@ -352,7 +352,7 @@ static void bgmac_dma_rx_enable(struct b
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static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
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struct bgmac_slot_info *slot)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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dma_addr_t dma_addr;
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struct bgmac_rx_header *rx;
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void *buf;
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@@ -441,7 +441,7 @@ static int bgmac_dma_rx_read(struct bgma
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end_slot /= sizeof(struct bgmac_dma_desc);
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while (ring->start != end_slot) {
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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struct bgmac_slot_info *slot = &ring->slots[ring->start];
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struct bgmac_rx_header *rx = slot->buf + BGMAC_RX_BUF_OFFSET;
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struct sk_buff *skb;
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@@ -544,7 +544,7 @@ static bool bgmac_dma_unaligned(struct b
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static void bgmac_dma_tx_ring_free(struct bgmac *bgmac,
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struct bgmac_dma_ring *ring)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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struct bgmac_dma_desc *dma_desc = ring->cpu_base;
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struct bgmac_slot_info *slot;
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int i;
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@@ -570,7 +570,7 @@ static void bgmac_dma_tx_ring_free(struc
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static void bgmac_dma_rx_ring_free(struct bgmac *bgmac,
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struct bgmac_dma_ring *ring)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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struct bgmac_slot_info *slot;
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int i;
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@@ -591,7 +591,7 @@ static void bgmac_dma_ring_desc_free(str
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struct bgmac_dma_ring *ring,
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int num_slots)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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int size;
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if (!ring->cpu_base)
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@@ -629,7 +629,7 @@ static void bgmac_dma_free(struct bgmac
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static int bgmac_dma_alloc(struct bgmac *bgmac)
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{
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- struct device *dma_dev = bgmac->core->dma_dev;
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+ struct device *dma_dev = bgmac->dma_dev;
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struct bgmac_dma_ring *ring;
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static const u16 ring_base[] = { BGMAC_DMA_BASE0, BGMAC_DMA_BASE1,
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BGMAC_DMA_BASE2, BGMAC_DMA_BASE3, };
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@@ -1730,6 +1730,7 @@ static int bgmac_probe(struct bcma_devic
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net_dev->ethtool_ops = &bgmac_ethtool_ops;
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bgmac = netdev_priv(net_dev);
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bgmac->dev = &core->dev;
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+ bgmac->dma_dev = core->dma_dev;
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bgmac->net_dev = net_dev;
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bgmac->core = core;
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bcma_set_drvdata(core, bgmac);
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--- a/drivers/net/ethernet/broadcom/bgmac.h
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+++ b/drivers/net/ethernet/broadcom/bgmac.h
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@@ -429,6 +429,7 @@ struct bgmac {
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struct bcma_device *cmn; /* Reference to CMN core for BCM4706 */
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struct device *dev;
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+ struct device *dma_dev;
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struct net_device *net_dev;
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struct napi_struct napi;
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struct mii_bus *mii_bus;
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