diff options
| author | Govindarajulu Varadarajan <gvaradar@cisco.com> | 2018-05-23 11:17:39 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-13 16:16:41 +0200 |
| commit | fc7c872ff95799fdb5cd59a4eb879ef87fef4883 (patch) | |
| tree | f83eacd277d2c64287c915dbb889770a0b18057e | |
| parent | 3e146567d2bf55acaab38414b04cdf6506f8abc2 (diff) | |
enic: set DMA mask to 47 bit
[ Upstream commit 322eaa06d55ebc1402a4a8d140945cff536638b4 ]
In commit 624dbf55a359b ("driver/net: enic: Try DMA 64 first, then
failover to DMA") DMA mask was changed from 40 bits to 64 bits.
Hardware actually supports only 47 bits.
Fixes: 624dbf55a359b ("driver/net: enic: Try DMA 64 first, then failover to DMA")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_main.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index dda63b26e370..99f593be26e2 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -2541,11 +2541,11 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); /* Query PCI controller on system for DMA addressing - * limitation for the device. Try 64-bit first, and + * limitation for the device. Try 47-bit first, and * fail to 32-bit. */ - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { @@ -2559,10 +2559,10 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_release_regions; } } else { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { dev_err(dev, "Unable to obtain %u-bit DMA " - "for consistent allocations, aborting\n", 64); + "for consistent allocations, aborting\n", 47); goto err_out_release_regions; } using_dac = 1; |