diff options
| author |   Dave Jiang <dave.jiang@intel.com> | 2017-06-08 12:46:45 -0700 |
|---|---|---|
| committer |   Jon Mason <jdmason@kudzu.us> | 2017-06-19 14:24:41 -0400 |
| commit | 5eb449e15d2396785a8eb15baf42cea33db9ae13 (patch) | |
| tree | c53b7f7cfc01475bfe661fa718df936dca5f4278 /drivers/ntb | |
| parent | ntb_transport: fix bug calculating num_qps_mw (diff) | |
| download | linux-dev-5eb449e15d2396785a8eb15baf42cea33db9ae13.tar.xz linux-dev-5eb449e15d2396785a8eb15baf42cea33db9ae13.zip | |
ntb: ntb_hw_intel: Skylake doorbells should be 32bits, not 64bits
Fixing doorbell register length to 32bits per spec. On Skylake NTB, the
doorbell registers are 32bit write only registers. The source for the
doorbell is a 64bit register that shows the interrupt bits.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 783dfa6cc41b ("ntb: Adding Skylake Xeon NTB support")
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
| -rw-r--r-- | drivers/ntb/hw/intel/ntb_hw_intel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c index c00238491673..7b3b6fd63d7d 100644 --- a/drivers/ntb/hw/intel/ntb_hw_intel.c +++ b/drivers/ntb/hw/intel/ntb_hw_intel.c @@ -2878,7 +2878,7 @@ static const struct intel_ntb_reg skx_reg = { .link_is_up = xeon_link_is_up, .db_ioread = skx_db_ioread, .db_iowrite = skx_db_iowrite, - .db_size = sizeof(u64), + .db_size = sizeof(u32), .ntb_ctl = SKX_NTBCNTL_OFFSET, .mw_bar = {2, 4}, }; |