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authorHareshx Sankar Raj <hareshx.sankar.raj@intel.com>2024-06-25 17:41:19 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2024-07-06 03:20:00 +0300
commitf0622894c59458fceb33c4197462bc2006f3fc6b (patch)
treee73137ec487b829b0ebfce5eea121bbc781d87e3
parent6424da7d8b938fe66e7e771eaa949bc7b6c29c00 (diff)
downloadlinux-f0622894c59458fceb33c4197462bc2006f3fc6b.tar.xz
crypto: qat - fix unintentional re-enabling of error interrupts
The logic that detects pending VF2PF interrupts unintentionally clears the section of the error mask register(s) not related to VF2PF. This might cause interrupts unrelated to VF2PF, reported through errsou3 and errsou5, to be reported again after the execution of the function disable_pending_vf2pf_interrupts() in dh895xcc and GEN2 devices. Fix by updating only section of errmsk3 and errmsk5 related to VF2PF. Signed-off-by: Hareshx Sankar Raj <hareshx.sankar.raj@intel.com> Reviewed-by: Damian Muszynski <damian.muszynski@intel.com> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/intel/qat/qat_common/adf_gen2_pfvf.c4
-rw-r--r--drivers/crypto/intel/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c8
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen2_pfvf.c b/drivers/crypto/intel/qat/qat_common/adf_gen2_pfvf.c
index 70ef11963938..43af81fcab86 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_gen2_pfvf.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_gen2_pfvf.c
@@ -100,7 +100,9 @@ static u32 adf_gen2_disable_pending_vf2pf_interrupts(void __iomem *pmisc_addr)
errmsk3 |= ADF_GEN2_ERR_MSK_VF2PF(ADF_GEN2_VF_MSK);
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK3, errmsk3);
- errmsk3 &= ADF_GEN2_ERR_MSK_VF2PF(sources | disabled);
+ /* Update only section of errmsk3 related to VF2PF */
+ errmsk3 &= ~ADF_GEN2_ERR_MSK_VF2PF(ADF_GEN2_VF_MSK);
+ errmsk3 |= ADF_GEN2_ERR_MSK_VF2PF(sources | disabled);
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK3, errmsk3);
/* Return the sources of the (new) interrupt(s) */
diff --git a/drivers/crypto/intel/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c b/drivers/crypto/intel/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c
index 6e24d57e6b98..c0661ff5e929 100644
--- a/drivers/crypto/intel/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c
+++ b/drivers/crypto/intel/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c
@@ -193,8 +193,12 @@ static u32 disable_pending_vf2pf_interrupts(void __iomem *pmisc_addr)
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK3, errmsk3);
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK5, errmsk5);
- errmsk3 &= ADF_DH895XCC_ERR_MSK_VF2PF_L(sources | disabled);
- errmsk5 &= ADF_DH895XCC_ERR_MSK_VF2PF_U(sources | disabled);
+ /* Update only section of errmsk3 and errmsk5 related to VF2PF */
+ errmsk3 &= ~ADF_DH895XCC_ERR_MSK_VF2PF_L(ADF_DH895XCC_VF_MSK);
+ errmsk5 &= ~ADF_DH895XCC_ERR_MSK_VF2PF_U(ADF_DH895XCC_VF_MSK);
+
+ errmsk3 |= ADF_DH895XCC_ERR_MSK_VF2PF_L(sources | disabled);
+ errmsk5 |= ADF_DH895XCC_ERR_MSK_VF2PF_U(sources | disabled);
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK3, errmsk3);
ADF_CSR_WR(pmisc_addr, ADF_GEN2_ERRMSK5, errmsk5);