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ntb: ntb_hw_intel: Skylake doorbells should be 32bits, not 64bits

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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: 783dfa6cc4 ("ntb: Adding Skylake Xeon NTB support")
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Dave Jiang 2017-06-08 12:46:45 -07:00 committed by Jon Mason
parent 8e8496e0e9
commit 5eb449e15d
1 changed files with 1 additions and 1 deletions
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drivers/ntb/hw/intel/ntb_hw_intel.c
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@ -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},
};