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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/net/ethernet/broadcom/bnx2.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/net/ethernet/broadcom/bnx2.c')
-rw-r--r--kernel/drivers/net/ethernet/broadcom/bnx2.c81
1 files changed, 54 insertions, 27 deletions
diff --git a/kernel/drivers/net/ethernet/broadcom/bnx2.c b/kernel/drivers/net/ethernet/broadcom/bnx2.c
index 2b66ef3d8..8fc3f3c13 100644
--- a/kernel/drivers/net/ethernet/broadcom/bnx2.c
+++ b/kernel/drivers/net/ethernet/broadcom/bnx2.c
@@ -813,6 +813,46 @@ bnx2_alloc_rx_mem(struct bnx2 *bp)
}
static void
+bnx2_free_stats_blk(struct net_device *dev)
+{
+ struct bnx2 *bp = netdev_priv(dev);
+
+ if (bp->status_blk) {
+ dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
+ bp->status_blk,
+ bp->status_blk_mapping);
+ bp->status_blk = NULL;
+ bp->stats_blk = NULL;
+ }
+}
+
+static int
+bnx2_alloc_stats_blk(struct net_device *dev)
+{
+ int status_blk_size;
+ void *status_blk;
+ struct bnx2 *bp = netdev_priv(dev);
+
+ /* Combine status and statistics blocks into one allocation. */
+ status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));
+ if (bp->flags & BNX2_FLAG_MSIX_CAP)
+ status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *
+ BNX2_SBLK_MSIX_ALIGN_SIZE);
+ bp->status_stats_size = status_blk_size +
+ sizeof(struct statistics_block);
+ status_blk = dma_zalloc_coherent(&bp->pdev->dev, bp->status_stats_size,
+ &bp->status_blk_mapping, GFP_KERNEL);
+ if (status_blk == NULL)
+ return -ENOMEM;
+
+ bp->status_blk = status_blk;
+ bp->stats_blk = status_blk + status_blk_size;
+ bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;
+
+ return 0;
+}
+
+static void
bnx2_free_mem(struct bnx2 *bp)
{
int i;
@@ -829,37 +869,19 @@ bnx2_free_mem(struct bnx2 *bp)
bp->ctx_blk[i] = NULL;
}
}
- if (bnapi->status_blk.msi) {
- dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
- bnapi->status_blk.msi,
- bp->status_blk_mapping);
+
+ if (bnapi->status_blk.msi)
bnapi->status_blk.msi = NULL;
- bp->stats_blk = NULL;
- }
}
static int
bnx2_alloc_mem(struct bnx2 *bp)
{
- int i, status_blk_size, err;
+ int i, err;
struct bnx2_napi *bnapi;
- void *status_blk;
-
- /* Combine status and statistics blocks into one allocation. */
- status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));
- if (bp->flags & BNX2_FLAG_MSIX_CAP)
- status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *
- BNX2_SBLK_MSIX_ALIGN_SIZE);
- bp->status_stats_size = status_blk_size +
- sizeof(struct statistics_block);
-
- status_blk = dma_zalloc_coherent(&bp->pdev->dev, bp->status_stats_size,
- &bp->status_blk_mapping, GFP_KERNEL);
- if (status_blk == NULL)
- goto alloc_mem_err;
bnapi = &bp->bnx2_napi[0];
- bnapi->status_blk.msi = status_blk;
+ bnapi->status_blk.msi = bp->status_blk;
bnapi->hw_tx_cons_ptr =
&bnapi->status_blk.msi->status_tx_quick_consumer_index0;
bnapi->hw_rx_cons_ptr =
@@ -870,7 +892,7 @@ bnx2_alloc_mem(struct bnx2 *bp)
bnapi = &bp->bnx2_napi[i];
- sblk = (status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);
+ sblk = (bp->status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);
bnapi->status_blk.msix = sblk;
bnapi->hw_tx_cons_ptr =
&sblk->status_tx_quick_consumer_index;
@@ -880,10 +902,6 @@ bnx2_alloc_mem(struct bnx2 *bp)
}
}
- bp->stats_blk = status_blk + status_blk_size;
-
- bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;
-
if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
bp->ctx_pages = 0x2000 / BNX2_PAGE_SIZE;
if (bp->ctx_pages == 0)
@@ -8330,6 +8348,11 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
bp->phy_addr = 1;
+ /* allocate stats_blk */
+ rc = bnx2_alloc_stats_blk(dev);
+ if (rc)
+ goto err_out_unmap;
+
/* Disable WOL support if we are running on a SERDES chip. */
if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
bnx2_get_5709_media(bp);
@@ -8453,6 +8476,8 @@ err_out_disable:
pci_disable_device(pdev);
err_out:
+ kfree(bp->temp_stats_blk);
+
return rc;
}
@@ -8586,6 +8611,7 @@ error:
pci_release_regions(pdev);
pci_disable_device(pdev);
err_free:
+ bnx2_free_stats_blk(dev);
free_netdev(dev);
return rc;
}
@@ -8603,6 +8629,7 @@ bnx2_remove_one(struct pci_dev *pdev)
pci_iounmap(bp->pdev, bp->regview);
+ bnx2_free_stats_blk(dev);
kfree(bp->temp_stats_blk);
if (bp->flags & BNX2_FLAG_AER_ENABLED) {