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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: 783dfa6cc4 ("ntb: Adding Skylake Xeon NTB support")
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
hifive-unleashed-5.1
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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2
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},
};