@@ -69,7 +69,10 @@ struct coprocessor_completion_block {
#define CSB_CC_WR_PROTECTION (16)
#define CSB_CC_UNKNOWN_CODE (17)
#define CSB_CC_ABORT (18)
+#define CSB_CC_EXCEED_BYTE_COUNT (19) /* P9 or later */
#define CSB_CC_TRANSPORT (20)
+#define CSB_CC_INVALID_CRB (21) /* P9 or later */
+#define CSB_CC_INVALID_DDE (30) /* P9 or later */
#define CSB_CC_SEGMENTED_DDL (31)
#define CSB_CC_PROGRESS_POINT (32)
#define CSB_CC_DDE_OVERFLOW (33)
@@ -243,6 +243,13 @@ static int wait_for_csb(struct nx842_workmem *wmem,
case CSB_CC_TEMPL_OVERFLOW:
CSB_ERR(csb, "Compressed data template shows data past end");
return -EINVAL;
+ case CSB_CC_EXCEED_BYTE_COUNT: /* P9 or later */
+ /*
+ * DDE byte count exceeds the limit specified in Maximum
+ * byte count register.
+ */
+ CSB_ERR(csb, "DDE byte count exceeds the limit");
+ return -EINVAL;
/* these should not happen */
case CSB_CC_INVALID_ALIGN:
@@ -284,9 +291,17 @@ static int wait_for_csb(struct nx842_workmem *wmem,
CSB_ERR(csb, "Too many DDEs in DDL");
return -EINVAL;
case CSB_CC_TRANSPORT:
+ case CSB_CC_INVALID_CRB: /* P9 or later */
/* shouldn't happen, we setup CRB correctly */
CSB_ERR(csb, "Invalid CRB");
return -EINVAL;
+ case CSB_CC_INVALID_DDE: /* P9 or later */
+ /*
+ * shouldn't happen, setup_direct/indirect_dde creates
+ * DDE right
+ */
+ CSB_ERR(csb, "Invalid DDE");
+ return -EINVAL;
case CSB_CC_SEGMENTED_DDL:
/* shouldn't happen, setup_ddl creates DDL right */
CSB_ERR(csb, "Segmented DDL error");
@@ -330,6 +345,9 @@ static int wait_for_csb(struct nx842_workmem *wmem,
case CSB_CC_HW:
CSB_ERR(csb, "Correctable hardware error");
return -EPROTO;
+ case CSB_CC_HW_EXPIRED_TIMER: /* P9 or later */
+ CSB_ERR(csb, "Job did not finish within allowed time");
+ return -EPROTO;
default:
CSB_ERR(csb, "Invalid CC %d", csb->cc);
@@ -76,9 +76,17 @@
#define CSB_CC_DECRYPT_OVERFLOW (64)
/* asym crypt codes */
#define CSB_CC_MINV_OVERFLOW (128)
+/*
+ * HW error - Job did not finish in the maximum time allowed.
+ * Job terminated.
+ */
+#define CSB_CC_HW_EXPIRED_TIMER (224)
/* These are reserved for hypervisor use */
#define CSB_CC_HYP_RESERVE_START (240)
#define CSB_CC_HYP_RESERVE_END (253)
+#define CSB_CC_HYP_RESERVE_P9_END (251)
+/* No valid interrupt server (P9 or later). */
+#define CSB_CC_HYP_RESERVE_NO_INTR_SERVER (252)
#define CSB_CC_HYP_NO_HW (254)
#define CSB_CC_HYP_HANG_ABORTED (255)
This patch adds changes for checking P9 specific 842 engine error codes. These errros are reported in coprocessor status block (CSB) for failures. Signed-off-by: Haren Myneni <haren@us.ibm.com> --- arch/powerpc/include/asm/icswx.h | 3 +++ drivers/crypto/nx/nx-842-powernv.c | 18 ++++++++++++++++++ drivers/crypto/nx/nx-842.h | 8 ++++++++ 3 files changed, 29 insertions(+)