[SCSI] ipr: add error handling updates for the next generation chip

Add support for the new log data notification and overlay IDs.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 141 insertions, 19 deletions

diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index f10c57b3d215..e6e90179e45e 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -754,12 +754,29 @@ struct ipr_hostrcb_device_data_entry_enhanced {
         struct ipr_ext_vpd cfc_last_with_dev_vpd;
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb64_device_data_entry_enhanced {
+        struct ipr_ext_vpd vpd;
+        u8 ccin[4];
+        u8 res_path[8];
+        struct ipr_ext_vpd new_vpd;
+        u8 new_ccin[4];
+        struct ipr_ext_vpd ioa_last_with_dev_vpd;
+        struct ipr_ext_vpd cfc_last_with_dev_vpd;
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_array_data_entry {
         struct ipr_vpd vpd;
         struct ipr_res_addr expected_dev_res_addr;
         struct ipr_res_addr dev_res_addr;
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb64_array_data_entry {
+        struct ipr_ext_vpd vpd;
+        u8 ccin[4];
+        u8 expected_res_path[8];
+        u8 res_path[8];
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_array_data_entry_enhanced {
         struct ipr_ext_vpd vpd;
         u8 ccin[4];
@@ -811,6 +828,14 @@ struct ipr_hostrcb_type_13_error {
         struct ipr_hostrcb_device_data_entry_enhanced dev[3];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb_type_23_error {
+        struct ipr_ext_vpd ioa_vpd;
+        struct ipr_ext_vpd cfc_vpd;
+        __be32 errors_detected;
+        __be32 errors_logged;
+        struct ipr_hostrcb64_device_data_entry_enhanced dev[3];
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_type_04_error {
         struct ipr_vpd ioa_vpd;
         struct ipr_vpd cfc_vpd;
@@ -838,6 +863,22 @@ struct ipr_hostrcb_type_14_error {
         struct ipr_hostrcb_array_data_entry_enhanced array_member[18];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb_type_24_error {
+        struct ipr_ext_vpd ioa_vpd;
+        struct ipr_ext_vpd cfc_vpd;
+        u8 reserved[2];
+        u8 exposed_mode_adn;
+#define IPR_INVALID_ARRAY_DEV_NUM               0xff
+        u8 array_id;
+        u8 last_res_path[8];
+        u8 protection_level[8];
+        struct ipr_ext_vpd array_vpd;
+        u8 description[16];
+        u8 reserved2[3];
+        u8 num_entries;
+        struct ipr_hostrcb64_array_data_entry array_member[32];
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_type_07_error {
         u8 failure_reason[64];
         struct ipr_vpd vpd;
@@ -875,6 +916,22 @@ struct ipr_hostrcb_config_element {
         __be32 wwid[2];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb64_config_element {
+        __be16 length;
+        u8 descriptor_id;
+#define IPR_DESCRIPTOR_MASK             0xC0
+#define IPR_DESCRIPTOR_SIS64            0x00
+
+        u8 reserved;
+        u8 type_status;
+
+        u8 reserved2[2];
+        u8 link_rate;
+
+        u8 res_path[8];
+        __be32 wwid[2];
+}__attribute__((packed, aligned (8)));
+
 struct ipr_hostrcb_fabric_desc {
         __be16 length;
         u8 ioa_port;
@@ -896,6 +953,20 @@ struct ipr_hostrcb_fabric_desc {
         struct ipr_hostrcb_config_element elem[1];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb64_fabric_desc {
+        __be16 length;
+        u8 descriptor_id;
+
+        u8 reserved;
+        u8 path_state;
+
+        u8 reserved2[2];
+        u8 res_path[8];
+        u8 reserved3[6];
+        __be16 num_entries;
+        struct ipr_hostrcb64_config_element elem[1];
+}__attribute__((packed, aligned (8)));
+
 #define for_each_fabric_cfg(fabric, cfg) \
                 for (cfg = (fabric)->elem; \
                         cfg < ((fabric)->elem + be16_to_cpu((fabric)->num_entries)); \
@@ -908,10 +979,17 @@ struct ipr_hostrcb_type_20_error {
         struct ipr_hostrcb_fabric_desc desc[1];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb_type_30_error {
+        u8 failure_reason[64];
+        u8 reserved[3];
+        u8 num_entries;
+        struct ipr_hostrcb64_fabric_desc desc[1];
+}__attribute__((packed, aligned (4)));
+
 struct ipr_hostrcb_error {
-        __be32 failing_dev_ioasc;
-        struct ipr_res_addr failing_dev_res_addr;
-        __be32 failing_dev_res_handle;
+        __be32 fd_ioasc;
+        struct ipr_res_addr fd_res_addr;
+        __be32 fd_res_handle;
         __be32 prc;
         union {
                 struct ipr_hostrcb_type_ff_error type_ff_error;
@@ -928,6 +1006,26 @@ struct ipr_hostrcb_error {
         } u;
 }__attribute__((packed, aligned (4)));
 
+struct ipr_hostrcb64_error {
+        __be32 fd_ioasc;
+        __be32 ioa_fw_level;
+        __be32 fd_res_handle;
+        __be32 prc;
+        __be64 fd_dev_id;
+        __be64 fd_lun;
+        u8 fd_res_path[8];
+        __be64 time_stamp;
+        u8 reserved[2];
+        union {
+                struct ipr_hostrcb_type_ff_error type_ff_error;
+                struct ipr_hostrcb_type_12_error type_12_error;
+                struct ipr_hostrcb_type_17_error type_17_error;
+                struct ipr_hostrcb_type_23_error type_23_error;
+                struct ipr_hostrcb_type_24_error type_24_error;
+                struct ipr_hostrcb_type_30_error type_30_error;
+        } u;
+}__attribute__((packed, aligned (8)));
+
 struct ipr_hostrcb_raw {
         __be32 data[sizeof(struct ipr_hostrcb_error)/sizeof(__be32)];
 }__attribute__((packed, aligned (4)));
@@ -965,7 +1063,11 @@ struct ipr_hcam {
 #define IPR_HOST_RCB_OVERLAY_ID_16                              0x16
 #define IPR_HOST_RCB_OVERLAY_ID_17                              0x17
 #define IPR_HOST_RCB_OVERLAY_ID_20                              0x20
-#define IPR_HOST_RCB_OVERLAY_ID_DEFAULT                 0xFF
+#define IPR_HOST_RCB_OVERLAY_ID_23                              0x23
+#define IPR_HOST_RCB_OVERLAY_ID_24                              0x24
+#define IPR_HOST_RCB_OVERLAY_ID_26                              0x26
+#define IPR_HOST_RCB_OVERLAY_ID_30                              0x30
+#define IPR_HOST_RCB_OVERLAY_ID_DEFAULT                         0xFF
 
         u8 reserved1[3];
         __be32 ilid;
@@ -975,6 +1077,7 @@ struct ipr_hcam {
 
         union {
                 struct ipr_hostrcb_error error;
+                struct ipr_hostrcb64_error error64;
                 struct ipr_hostrcb_cfg_ch_not ccn;
                 struct ipr_hostrcb_raw raw;
         } u;
@@ -985,6 +1088,7 @@ struct ipr_hostrcb {
         dma_addr_t hostrcb_dma;
         struct list_head queue;
         struct ipr_ioa_cfg *ioa_cfg;
+        char rp_buffer[IPR_MAX_RES_PATH_LENGTH];
 };
 
 /* IPR smart dump table structures */
@@ -1521,14 +1625,21 @@ struct ipr_ucode_image_header {
 }
 
 #define ipr_hcam_err(hostrcb, fmt, ...)                                 \
-{                                                                                                       \
-        if (ipr_is_device(&(hostrcb)->hcam.u.error.failing_dev_res_addr)) {             \
-                ipr_ra_err((hostrcb)->ioa_cfg,                                                  \
-                                (hostrcb)->hcam.u.error.failing_dev_res_addr,                   \
-                                fmt, ##__VA_ARGS__);                                                    \
-        } else {                                                                                        \
-                dev_err(&(hostrcb)->ioa_cfg->pdev->dev, fmt, ##__VA_ARGS__);            \
-        }                                                                                               \
+{                                                                       \
+        if (ipr_is_device(hostrcb)) {                                   \
+                if ((hostrcb)->ioa_cfg->sis64) {                        \
+                        printk(KERN_ERR IPR_NAME ": %s: " fmt,          \
+                                ipr_format_resource_path(&hostrcb->hcam.u.error64.fd_res_path[0], \
+                                        &hostrcb->rp_buffer[0]),        \
+                                __VA_ARGS__);                           \
+                } else {                                                \
+                        ipr_ra_err((hostrcb)->ioa_cfg,                  \
+                                (hostrcb)->hcam.u.error.fd_res_addr,    \
+                                fmt, __VA_ARGS__);                      \
+                }                                                       \
+        } else {                                                        \
+                dev_err(&(hostrcb)->ioa_cfg->pdev->dev, fmt, __VA_ARGS__); \
+        }                                                               \
 }
 
 #define ipr_trace ipr_dbg("%s: %s: Line: %d\n",\
@@ -1637,18 +1748,29 @@ static inline int ipr_is_naca_model(struct ipr_resource_entry *res)
 }
 
 /**
- * ipr_is_device - Determine if resource address is that of a device
- * @res_addr:   resource address struct
+ * ipr_is_device - Determine if the hostrcb structure is related to a device
+ * @hostrcb:    host resource control blocks struct
  *
  * Return value:
  *      1 if AF / 0 if not AF
  **/
-static inline int ipr_is_device(struct ipr_res_addr *res_addr)
+static inline int ipr_is_device(struct ipr_hostrcb *hostrcb)
 {
-        if ((res_addr->bus < IPR_MAX_NUM_BUSES) &&
-            (res_addr->target < (IPR_MAX_NUM_TARGETS_PER_BUS - 1)))
-                return 1;
-
+        struct ipr_res_addr *res_addr;
+        u8 *res_path;
+
+        if (hostrcb->ioa_cfg->sis64) {
+                res_path = &hostrcb->hcam.u.error64.fd_res_path[0];
+                if ((res_path[0] == 0x00 || res_path[0] == 0x80 ||
+                    res_path[0] == 0x81) && res_path[2] != 0xFF)
+                        return 1;
+        } else {
+                res_addr = &hostrcb->hcam.u.error.fd_res_addr;
+
+                if ((res_addr->bus < IPR_MAX_NUM_BUSES) &&
+                    (res_addr->target < (IPR_MAX_NUM_TARGETS_PER_BUS - 1)))
+                        return 1;
+        }
         return 0;
 }