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Date: Tue, 14 Jul 2020 11:06:20 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: davem@...emloft.net, jdmason@...zu.us, ast@...nel.org,
kuba@...nel.org, daniel@...earbox.net, hawk@...nel.org,
john.fastabend@...il.com
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] net: neterion: s2io: switch from 'pci_' to 'dma_' API
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GPF_ with a correct flag.
It has been compile tested.
When memory is allocated in 'init_shared_mem()' GFP_KERNEL can be used
because this flag is already used to allocate some memory in this function.
While at it, update some debug message to match the new function names.
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
---
drivers/net/ethernet/neterion/s2io.c | 191 +++++++++++++--------------
1 file changed, 90 insertions(+), 101 deletions(-)
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index 15b8b1bf8163..bc94970bea45 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -640,11 +640,11 @@ static int init_shared_mem(struct s2io_nic *nic)
int k = 0;
dma_addr_t tmp_p;
void *tmp_v;
- tmp_v = pci_alloc_consistent(nic->pdev,
- PAGE_SIZE, &tmp_p);
+ tmp_v = dma_alloc_coherent(&nic->pdev->dev, PAGE_SIZE,
+ &tmp_p, GFP_KERNEL);
if (!tmp_v) {
DBG_PRINT(INFO_DBG,
- "pci_alloc_consistent failed for TxDL\n");
+ "dma_alloc_coherent failed for TxDL\n");
return -ENOMEM;
}
/* If we got a zero DMA address(can happen on
@@ -658,11 +658,12 @@ static int init_shared_mem(struct s2io_nic *nic)
"%s: Zero DMA address for TxDL. "
"Virtual address %p\n",
dev->name, tmp_v);
- tmp_v = pci_alloc_consistent(nic->pdev,
- PAGE_SIZE, &tmp_p);
+ tmp_v = dma_alloc_coherent(&nic->pdev->dev,
+ PAGE_SIZE, &tmp_p,
+ GFP_KERNEL);
if (!tmp_v) {
DBG_PRINT(INFO_DBG,
- "pci_alloc_consistent failed for TxDL\n");
+ "dma_alloc_coherent failed for TxDL\n");
return -ENOMEM;
}
mem_allocated += PAGE_SIZE;
@@ -734,8 +735,8 @@ static int init_shared_mem(struct s2io_nic *nic)
rx_blocks = &ring->rx_blocks[j];
size = SIZE_OF_BLOCK; /* size is always page size */
- tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
- &tmp_p_addr);
+ tmp_v_addr = dma_alloc_coherent(&nic->pdev->dev, size,
+ &tmp_p_addr, GFP_KERNEL);
if (tmp_v_addr == NULL) {
/*
* In case of failure, free_shared_mem()
@@ -835,8 +836,8 @@ static int init_shared_mem(struct s2io_nic *nic)
/* Allocation and initialization of Statistics block */
size = sizeof(struct stat_block);
mac_control->stats_mem =
- pci_alloc_consistent(nic->pdev, size,
- &mac_control->stats_mem_phy);
+ dma_alloc_coherent(&nic->pdev->dev, size,
+ &mac_control->stats_mem_phy, GFP_KERNEL);
if (!mac_control->stats_mem) {
/*
@@ -906,18 +907,18 @@ static void free_shared_mem(struct s2io_nic *nic)
fli = &fifo->list_info[mem_blks];
if (!fli->list_virt_addr)
break;
- pci_free_consistent(nic->pdev, PAGE_SIZE,
- fli->list_virt_addr,
- fli->list_phy_addr);
+ dma_free_coherent(&nic->pdev->dev, PAGE_SIZE,
+ fli->list_virt_addr,
+ fli->list_phy_addr);
swstats->mem_freed += PAGE_SIZE;
}
/* If we got a zero DMA address during allocation,
* free the page now
*/
if (mac_control->zerodma_virt_addr) {
- pci_free_consistent(nic->pdev, PAGE_SIZE,
- mac_control->zerodma_virt_addr,
- (dma_addr_t)0);
+ dma_free_coherent(&nic->pdev->dev, PAGE_SIZE,
+ mac_control->zerodma_virt_addr,
+ (dma_addr_t)0);
DBG_PRINT(INIT_DBG,
"%s: Freeing TxDL with zero DMA address. "
"Virtual address %p\n",
@@ -939,8 +940,8 @@ static void free_shared_mem(struct s2io_nic *nic)
tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
if (tmp_v_addr == NULL)
break;
- pci_free_consistent(nic->pdev, size,
- tmp_v_addr, tmp_p_addr);
+ dma_free_coherent(&nic->pdev->dev, size, tmp_v_addr,
+ tmp_p_addr);
swstats->mem_freed += size;
kfree(ring->rx_blocks[j].rxds);
swstats->mem_freed += sizeof(struct rxd_info) *
@@ -993,10 +994,9 @@ static void free_shared_mem(struct s2io_nic *nic)
if (mac_control->stats_mem) {
swstats->mem_freed += mac_control->stats_mem_sz;
- pci_free_consistent(nic->pdev,
- mac_control->stats_mem_sz,
- mac_control->stats_mem,
- mac_control->stats_mem_phy);
+ dma_free_coherent(&nic->pdev->dev, mac_control->stats_mem_sz,
+ mac_control->stats_mem,
+ mac_control->stats_mem_phy);
}
}
@@ -2316,8 +2316,9 @@ static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
txds = txdlp;
if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) {
- pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
- sizeof(u64), PCI_DMA_TODEVICE);
+ dma_unmap_single(&nic->pdev->dev,
+ (dma_addr_t)txds->Buffer_Pointer,
+ sizeof(u64), DMA_TO_DEVICE);
txds++;
}
@@ -2326,8 +2327,8 @@ static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
return NULL;
}
- pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
- skb_headlen(skb), PCI_DMA_TODEVICE);
+ dma_unmap_single(&nic->pdev->dev, (dma_addr_t)txds->Buffer_Pointer,
+ skb_headlen(skb), DMA_TO_DEVICE);
frg_cnt = skb_shinfo(skb)->nr_frags;
if (frg_cnt) {
txds++;
@@ -2335,9 +2336,9 @@ static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
const skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
if (!txds->Buffer_Pointer)
break;
- pci_unmap_page(nic->pdev,
+ dma_unmap_page(&nic->pdev->dev,
(dma_addr_t)txds->Buffer_Pointer,
- skb_frag_size(frag), PCI_DMA_TODEVICE);
+ skb_frag_size(frag), DMA_TO_DEVICE);
}
}
memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
@@ -2521,11 +2522,10 @@ static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
memset(rxdp, 0, sizeof(struct RxD1));
skb_reserve(skb, NET_IP_ALIGN);
rxdp1->Buffer0_ptr =
- pci_map_single(ring->pdev, skb->data,
+ dma_map_single(&ring->pdev->dev, skb->data,
size - NET_IP_ALIGN,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(nic->pdev,
- rxdp1->Buffer0_ptr))
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&nic->pdev->dev, rxdp1->Buffer0_ptr))
goto pci_map_failed;
rxdp->Control_2 =
@@ -2557,17 +2557,16 @@ static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
if (from_card_up) {
rxdp3->Buffer0_ptr =
- pci_map_single(ring->pdev, ba->ba_0,
- BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(nic->pdev,
- rxdp3->Buffer0_ptr))
+ dma_map_single(&ring->pdev->dev,
+ ba->ba_0, BUF0_LEN,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&nic->pdev->dev, rxdp3->Buffer0_ptr))
goto pci_map_failed;
} else
- pci_dma_sync_single_for_device(ring->pdev,
- (dma_addr_t)rxdp3->Buffer0_ptr,
- BUF0_LEN,
- PCI_DMA_FROMDEVICE);
+ dma_sync_single_for_device(&ring->pdev->dev,
+ (dma_addr_t)rxdp3->Buffer0_ptr,
+ BUF0_LEN,
+ DMA_FROM_DEVICE);
rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
if (ring->rxd_mode == RXD_MODE_3B) {
@@ -2577,29 +2576,28 @@ static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
* Buffer2 will have L3/L4 header plus
* L4 payload
*/
- rxdp3->Buffer2_ptr = pci_map_single(ring->pdev,
+ rxdp3->Buffer2_ptr = dma_map_single(&ring->pdev->dev,
skb->data,
ring->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
- if (pci_dma_mapping_error(nic->pdev,
- rxdp3->Buffer2_ptr))
+ if (dma_mapping_error(&nic->pdev->dev, rxdp3->Buffer2_ptr))
goto pci_map_failed;
if (from_card_up) {
rxdp3->Buffer1_ptr =
- pci_map_single(ring->pdev,
+ dma_map_single(&ring->pdev->dev,
ba->ba_1,
BUF1_LEN,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
- if (pci_dma_mapping_error(nic->pdev,
- rxdp3->Buffer1_ptr)) {
- pci_unmap_single(ring->pdev,
+ if (dma_mapping_error(&nic->pdev->dev,
+ rxdp3->Buffer1_ptr)) {
+ dma_unmap_single(&ring->pdev->dev,
(dma_addr_t)(unsigned long)
skb->data,
ring->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
goto pci_map_failed;
}
}
@@ -2668,27 +2666,24 @@ static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
continue;
if (sp->rxd_mode == RXD_MODE_1) {
rxdp1 = (struct RxD1 *)rxdp;
- pci_unmap_single(sp->pdev,
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp1->Buffer0_ptr,
dev->mtu +
HEADER_ETHERNET_II_802_3_SIZE +
HEADER_802_2_SIZE + HEADER_SNAP_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
memset(rxdp, 0, sizeof(struct RxD1));
} else if (sp->rxd_mode == RXD_MODE_3B) {
rxdp3 = (struct RxD3 *)rxdp;
- pci_unmap_single(sp->pdev,
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer0_ptr,
- BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(sp->pdev,
+ BUF0_LEN, DMA_FROM_DEVICE);
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer1_ptr,
- BUF1_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(sp->pdev,
+ BUF1_LEN, DMA_FROM_DEVICE);
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer2_ptr,
- dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ dev->mtu + 4, DMA_FROM_DEVICE);
memset(rxdp, 0, sizeof(struct RxD3));
}
swstats->mem_freed += skb->truesize;
@@ -2919,23 +2914,21 @@ static int rx_intr_handler(struct ring_info *ring_data, int budget)
}
if (ring_data->rxd_mode == RXD_MODE_1) {
rxdp1 = (struct RxD1 *)rxdp;
- pci_unmap_single(ring_data->pdev, (dma_addr_t)
- rxdp1->Buffer0_ptr,
+ dma_unmap_single(&ring_data->pdev->dev,
+ (dma_addr_t)rxdp1->Buffer0_ptr,
ring_data->mtu +
HEADER_ETHERNET_II_802_3_SIZE +
HEADER_802_2_SIZE +
HEADER_SNAP_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
} else if (ring_data->rxd_mode == RXD_MODE_3B) {
rxdp3 = (struct RxD3 *)rxdp;
- pci_dma_sync_single_for_cpu(ring_data->pdev,
- (dma_addr_t)rxdp3->Buffer0_ptr,
- BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- pci_unmap_single(ring_data->pdev,
+ dma_sync_single_for_cpu(&ring_data->pdev->dev,
+ (dma_addr_t)rxdp3->Buffer0_ptr,
+ BUF0_LEN, DMA_FROM_DEVICE);
+ dma_unmap_single(&ring_data->pdev->dev,
(dma_addr_t)rxdp3->Buffer2_ptr,
- ring_data->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ ring_data->mtu + 4, DMA_FROM_DEVICE);
}
prefetch(skb->data);
rx_osm_handler(ring_data, rxdp);
@@ -4117,9 +4110,9 @@ static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
}
frg_len = skb_headlen(skb);
- txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
- frg_len, PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
+ txdp->Buffer_Pointer = dma_map_single(&sp->pdev->dev, skb->data,
+ frg_len, DMA_TO_DEVICE);
+ if (dma_mapping_error(&sp->pdev->dev, txdp->Buffer_Pointer))
goto pci_map_failed;
txdp->Host_Control = (unsigned long)skb;
@@ -6772,10 +6765,10 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
* Host Control is NULL
*/
rxdp1->Buffer0_ptr = *temp0 =
- pci_map_single(sp->pdev, (*skb)->data,
+ dma_map_single(&sp->pdev->dev, (*skb)->data,
size - NET_IP_ALIGN,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&sp->pdev->dev, rxdp1->Buffer0_ptr))
goto memalloc_failed;
rxdp->Host_Control = (unsigned long) (*skb);
}
@@ -6798,37 +6791,34 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
}
stats->mem_allocated += (*skb)->truesize;
rxdp3->Buffer2_ptr = *temp2 =
- pci_map_single(sp->pdev, (*skb)->data,
- dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
+ dma_map_single(&sp->pdev->dev, (*skb)->data,
+ dev->mtu + 4, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&sp->pdev->dev, rxdp3->Buffer2_ptr))
goto memalloc_failed;
rxdp3->Buffer0_ptr = *temp0 =
- pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(sp->pdev,
- rxdp3->Buffer0_ptr)) {
- pci_unmap_single(sp->pdev,
+ dma_map_single(&sp->pdev->dev, ba->ba_0,
+ BUF0_LEN, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&sp->pdev->dev, rxdp3->Buffer0_ptr)) {
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer2_ptr,
dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
goto memalloc_failed;
}
rxdp->Host_Control = (unsigned long) (*skb);
/* Buffer-1 will be dummy buffer not used */
rxdp3->Buffer1_ptr = *temp1 =
- pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(sp->pdev,
- rxdp3->Buffer1_ptr)) {
- pci_unmap_single(sp->pdev,
+ dma_map_single(&sp->pdev->dev, ba->ba_1,
+ BUF1_LEN, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&sp->pdev->dev, rxdp3->Buffer1_ptr)) {
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer0_ptr,
- BUF0_LEN, PCI_DMA_FROMDEVICE);
- pci_unmap_single(sp->pdev,
+ BUF0_LEN, DMA_FROM_DEVICE);
+ dma_unmap_single(&sp->pdev->dev,
(dma_addr_t)rxdp3->Buffer2_ptr,
dev->mtu + 4,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
goto memalloc_failed;
}
}
@@ -7675,17 +7665,16 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
return ret;
}
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
dma_flag = true;
- if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
DBG_PRINT(ERR_DBG,
- "Unable to obtain 64bit DMA "
- "for consistent allocations\n");
+ "Unable to obtain 64bit DMA for coherent allocations\n");
pci_disable_device(pdev);
return -ENOMEM;
}
- } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ } else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
} else {
pci_disable_device(pdev);
--
2.25.1
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