diff options
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_driver.c | 11 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_iba6110.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_init_chip.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_intr.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_kernel.h | 1 |
5 files changed, 10 insertions, 16 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index f130652cfaa..5a9dc317f40 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1340,14 +1340,9 @@ static void ipath_update_pio_bufs(struct ipath_devdata *dd) /* * Chip Errata: bug 6641; even and odd qwords>3 are swapped */ - if (i > 3) { - if (i & 1) - piov = le64_to_cpu( - dd->ipath_pioavailregs_dma[i - 1]); - else - piov = le64_to_cpu( - dd->ipath_pioavailregs_dma[i + 1]); - } else + if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) + piov = le64_to_cpu(dd->ipath_pioavailregs_dma[i ^ 1]); + else piov = le64_to_cpu(dd->ipath_pioavailregs_dma[i]); pchg = _IPATH_ALL_CHECKBITS & ~(dd->ipath_pioavailshadow[i] ^ piov); diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 0c900c51e53..3bfaf04a214 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -1043,6 +1043,8 @@ static int ipath_setup_ht_config(struct ipath_devdata *dd, } while ((pos = pci_find_next_capability(pdev, pos, PCI_CAP_ID_HT))); + dd->ipath_flags |= IPATH_SWAP_PIOBUFS; + bail: return ret; } diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 3174c315999..4471674975c 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -528,12 +528,8 @@ static void enable_chip(struct ipath_devdata *dd, /* * Chip Errata bug 6641; even and odd qwords>3 are swapped. */ - if (i > 3) { - if (i & 1) - val = dd->ipath_pioavailregs_dma[i - 1]; - else - val = dd->ipath_pioavailregs_dma[i + 1]; - } + if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) + val = dd->ipath_pioavailregs_dma[i ^ 1]; else val = dd->ipath_pioavailregs_dma[i]; dd->ipath_pioavailshadow[i] = le64_to_cpu(val); diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index e2ce5314504..ddc0a19c5ee 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -831,8 +831,8 @@ void ipath_clear_freeze(struct ipath_devdata *dd) */ for (i = 0; i < dd->ipath_pioavregs; i++) { /* deal with 6110 chip bug */ - im = i > 3 ? ((i&1) ? i-1 : i+1) : i; - val = ipath_read_kreg64(dd, (0x1000/sizeof(u64))+im); + im = i > 3 ? i ^ 1 : i; + val = ipath_read_kreg64(dd, (0x1000 / sizeof(u64)) + im); dd->ipath_pioavailregs_dma[i] = dd->ipath_pioavailshadow[i] = le64_to_cpu(val); } diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index b9cca840323..e07df006831 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -756,6 +756,7 @@ int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv); #define IPATH_DISABLED 0x80000 /* administratively disabled */ /* Use GPIO interrupts for new counters */ #define IPATH_GPIO_ERRINTRS 0x100000 +#define IPATH_SWAP_PIOBUFS 0x200000 /* Bits in GPIO for the added interrupts */ #define IPATH_GPIO_PORT0_BIT 2 |