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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
chelsio: 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 GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'free_rx_resources()' and 'alloc_tx_resources()' (sge.c) GFP_KERNEL can be used because it is already used in these functions. Moreover, they can only be called from a .ndo_open function. So it is guarded by the 'rtnl_lock()', which is a mutex. While at it, a pr_err message in 'init_one()' has been updated accordingly (s/consistent/coherent). @@ @@ - 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@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
f6d89dc51e
commit
9ab9017948
2 changed files with 39 additions and 35 deletions
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@ -997,17 +997,17 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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goto out_disable_pdev;
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}
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if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
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if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
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pci_using_dac = 1;
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if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
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pr_err("%s: unable to obtain 64-bit DMA for "
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"consistent allocations\n", pci_name(pdev));
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if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
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pr_err("%s: unable to obtain 64-bit DMA for coherent allocations\n",
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pci_name(pdev));
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err = -ENODEV;
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goto out_disable_pdev;
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}
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} else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
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} else if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) != 0) {
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pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
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goto out_disable_pdev;
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}
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@ -509,9 +509,8 @@ static void free_freelQ_buffers(struct pci_dev *pdev, struct freelQ *q)
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while (q->credits--) {
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struct freelQ_ce *ce = &q->centries[cidx];
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pci_unmap_single(pdev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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PCI_DMA_FROMDEVICE);
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dma_unmap_single(&pdev->dev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len), DMA_FROM_DEVICE);
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dev_kfree_skb(ce->skb);
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ce->skb = NULL;
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if (++cidx == q->size)
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@ -529,8 +528,8 @@ static void free_rx_resources(struct sge *sge)
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if (sge->respQ.entries) {
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size = sizeof(struct respQ_e) * sge->respQ.size;
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pci_free_consistent(pdev, size, sge->respQ.entries,
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sge->respQ.dma_addr);
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dma_free_coherent(&pdev->dev, size, sge->respQ.entries,
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sge->respQ.dma_addr);
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}
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for (i = 0; i < SGE_FREELQ_N; i++) {
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@ -542,8 +541,8 @@ static void free_rx_resources(struct sge *sge)
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}
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if (q->entries) {
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size = sizeof(struct freelQ_e) * q->size;
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pci_free_consistent(pdev, size, q->entries,
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q->dma_addr);
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dma_free_coherent(&pdev->dev, size, q->entries,
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q->dma_addr);
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}
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}
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}
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@ -564,7 +563,8 @@ static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
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q->size = p->freelQ_size[i];
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q->dma_offset = sge->rx_pkt_pad ? 0 : NET_IP_ALIGN;
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size = sizeof(struct freelQ_e) * q->size;
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q->entries = pci_alloc_consistent(pdev, size, &q->dma_addr);
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q->entries = dma_alloc_coherent(&pdev->dev, size,
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&q->dma_addr, GFP_KERNEL);
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if (!q->entries)
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goto err_no_mem;
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@ -601,7 +601,8 @@ static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
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sge->respQ.credits = 0;
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size = sizeof(struct respQ_e) * sge->respQ.size;
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sge->respQ.entries =
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pci_alloc_consistent(pdev, size, &sge->respQ.dma_addr);
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dma_alloc_coherent(&pdev->dev, size, &sge->respQ.dma_addr,
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GFP_KERNEL);
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if (!sge->respQ.entries)
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goto err_no_mem;
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return 0;
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@ -624,9 +625,10 @@ static void free_cmdQ_buffers(struct sge *sge, struct cmdQ *q, unsigned int n)
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ce = &q->centries[cidx];
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while (n--) {
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if (likely(dma_unmap_len(ce, dma_len))) {
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pci_unmap_single(pdev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_single(&pdev->dev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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PCI_DMA_TODEVICE);
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DMA_TO_DEVICE);
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if (q->sop)
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q->sop = 0;
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}
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@ -663,8 +665,8 @@ static void free_tx_resources(struct sge *sge)
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}
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if (q->entries) {
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size = sizeof(struct cmdQ_e) * q->size;
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pci_free_consistent(pdev, size, q->entries,
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q->dma_addr);
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dma_free_coherent(&pdev->dev, size, q->entries,
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q->dma_addr);
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}
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}
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}
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@ -689,7 +691,8 @@ static int alloc_tx_resources(struct sge *sge, struct sge_params *p)
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q->stop_thres = 0;
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spin_lock_init(&q->lock);
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size = sizeof(struct cmdQ_e) * q->size;
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q->entries = pci_alloc_consistent(pdev, size, &q->dma_addr);
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q->entries = dma_alloc_coherent(&pdev->dev, size,
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&q->dma_addr, GFP_KERNEL);
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if (!q->entries)
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goto err_no_mem;
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@ -837,8 +840,8 @@ static void refill_free_list(struct sge *sge, struct freelQ *q)
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break;
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skb_reserve(skb, q->dma_offset);
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mapping = pci_map_single(pdev, skb->data, dma_len,
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PCI_DMA_FROMDEVICE);
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mapping = dma_map_single(&pdev->dev, skb->data, dma_len,
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DMA_FROM_DEVICE);
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skb_reserve(skb, sge->rx_pkt_pad);
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ce->skb = skb;
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@ -1049,15 +1052,15 @@ static inline struct sk_buff *get_packet(struct adapter *adapter,
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goto use_orig_buf;
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skb_put(skb, len);
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pci_dma_sync_single_for_cpu(pdev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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PCI_DMA_FROMDEVICE);
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dma_sync_single_for_cpu(&pdev->dev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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DMA_FROM_DEVICE);
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skb_copy_from_linear_data(ce->skb, skb->data, len);
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pci_dma_sync_single_for_device(pdev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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PCI_DMA_FROMDEVICE);
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dma_sync_single_for_device(&pdev->dev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len),
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DMA_FROM_DEVICE);
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recycle_fl_buf(fl, fl->cidx);
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return skb;
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}
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@ -1068,8 +1071,8 @@ static inline struct sk_buff *get_packet(struct adapter *adapter,
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return NULL;
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}
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pci_unmap_single(pdev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
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dma_unmap_single(&pdev->dev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len), DMA_FROM_DEVICE);
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skb = ce->skb;
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prefetch(skb->data);
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@ -1091,8 +1094,9 @@ static void unexpected_offload(struct adapter *adapter, struct freelQ *fl)
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struct freelQ_ce *ce = &fl->centries[fl->cidx];
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struct sk_buff *skb = ce->skb;
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pci_dma_sync_single_for_cpu(adapter->pdev, dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
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dma_sync_single_for_cpu(&adapter->pdev->dev,
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dma_unmap_addr(ce, dma_addr),
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dma_unmap_len(ce, dma_len), DMA_FROM_DEVICE);
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pr_err("%s: unexpected offload packet, cmd %u\n",
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adapter->name, *skb->data);
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recycle_fl_buf(fl, fl->cidx);
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@ -1209,8 +1213,8 @@ static inline void write_tx_descs(struct adapter *adapter, struct sk_buff *skb,
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e = e1 = &q->entries[pidx];
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ce = &q->centries[pidx];
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mapping = pci_map_single(adapter->pdev, skb->data,
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skb_headlen(skb), PCI_DMA_TODEVICE);
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mapping = dma_map_single(&adapter->pdev->dev, skb->data,
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skb_headlen(skb), DMA_TO_DEVICE);
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desc_mapping = mapping;
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desc_len = skb_headlen(skb);
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