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| author | Nikita Shubin <n.shubin@yadro.com> | 2024-06-06 11:15:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:33:40 +0200 |
| commit | 8d78931a1500aa4c4f5dfefe4c948fcd05910746 (patch) | |
| tree | debaf92f78674484630ff1c84b37c1e2a3da7016 /drivers | |
| parent | 7ed22f8d8be26225a78cf5e85b2036421a6bf2d5 (diff) | |
| download | linux-8d78931a1500aa4c4f5dfefe4c948fcd05910746.tar.gz linux-8d78931a1500aa4c4f5dfefe4c948fcd05910746.tar.bz2 linux-8d78931a1500aa4c4f5dfefe4c948fcd05910746.zip | |
ntb: intel: Fix using link status DB's
[ Upstream commit 8144e9c8f30fb23bb736a5d24d5c9d46965563c4 ]
Make sure we are not using DB's which were remapped for link status.
Fixes: f6e51c354b60 ("ntb: intel: split out the gen3 code")
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ntb/hw/intel/ntb_hw_gen3.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ntb/hw/intel/ntb_hw_gen3.c b/drivers/ntb/hw/intel/ntb_hw_gen3.c index ffcfc3e02c35..a5aa96a31f4a 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen3.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen3.c @@ -215,6 +215,9 @@ static int gen3_init_ntb(struct intel_ntb_dev *ndev) } ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1; + /* Make sure we are not using DB's used for link status */ + if (ndev->hwerr_flags & NTB_HWERR_MSIX_VECTOR32_BAD) + ndev->db_valid_mask &= ~ndev->db_link_mask; ndev->reg->db_iowrite(ndev->db_valid_mask, ndev->self_mmio + |