diff options
| author | Srujana Challa <schalla@marvell.com> | 2023-12-13 10:30:50 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-12-29 06:25:38 +0300 |
| commit | 9d1d5702aac831ba844d6227373c49e0ba0ec8ae (patch) | |
| tree | 6bec19ec7366bac062c3d719a0ae968442ff5126 /drivers/crypto | |
| parent | 82f89f1aa6ca33a6c1e50ddb165e2d5b882025e1 (diff) | |
| download | linux-9d1d5702aac831ba844d6227373c49e0ba0ec8ae.tar.xz | |
crypto: octeontx2 - remove errata workaround for CN10KB or CN10KA B0 chip.
Adds code to not execute CPT errata "when CPT_AF_DIAG[FLT_DIS] = 0 and a
CPT engine access to LLC/DRAM encounters a fault/poison, a rare case
may result in unpredictable data being delivered to a CPT engine"
workaround on CN10KA B0/CN10KB HW as it is fixed on these chips.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/marvell/octeontx2/otx2_cpt_common.h | 7 | ||||
| -rw-r--r-- | drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c | 10 |
2 files changed, 13 insertions, 4 deletions
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h index 746b049c6c44..ba1682a213e3 100644 --- a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h +++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h @@ -186,6 +186,13 @@ static inline void otx2_cpt_set_hw_caps(struct pci_dev *pdev, } } +static inline bool cpt_is_errata_38550_exists(struct pci_dev *pdev) +{ + if (is_dev_otx2(pdev) || is_dev_cn10ka_ax(pdev)) + return true; + + return false; +} static inline bool cpt_feature_sgv2(struct pci_dev *pdev) { diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c index 7fccc348f66e..e319aa1ff119 100644 --- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c +++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c @@ -1254,10 +1254,12 @@ int otx2_cpt_create_eng_grps(struct otx2_cptpf_dev *cptpf, * encounters a fault/poison, a rare case may result in * unpredictable data being delivered to a CPT engine. */ - otx2_cpt_read_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_DIAG, ®_val, - BLKADDR_CPT0); - otx2_cpt_write_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_DIAG, - reg_val | BIT_ULL(24), BLKADDR_CPT0); + if (cpt_is_errata_38550_exists(pdev)) { + otx2_cpt_read_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_DIAG, + ®_val, BLKADDR_CPT0); + otx2_cpt_write_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_DIAG, + reg_val | BIT_ULL(24), BLKADDR_CPT0); + } mutex_unlock(&eng_grps->lock); return 0; |