[PATCH 05/24] aacraid: Retrieve and update the device types

Raghava Aditya Renukunta
2017-01-24T00:47:04Z

This patch adds support to retrieve the type of each adapter connected
device. Applicable to HBA1000 and SmartIOC2000 products

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
---
drivers/scsi/aacraid/aachba.c | 141 ++++++++++++++++++++++++++++++++++++++++-
drivers/scsi/aacraid/aacraid.h | 60 +++++++++++++++++-
2 files changed, 199 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 8a58b96..87789580 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1509,11 +1509,138 @@ static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
return aac_scsi_32(fib, cmd);
}

+/**
+ * aac_update hba_map()- update current hba map with data from FW
+ * @dev: aac_dev structure
+ * @phys_luns: FW information from report phys luns
+ *
+ * Update our hba map with the information gathered from the FW
+ */
+void aac_update_hba_map(struct aac_dev *dev,
+ struct aac_ciss_phys_luns_resp *phys_luns)
+{
+ /* ok and extended reporting */
+ u32 lun_count, nexus;
+ u32 i, bus, target;
+ u8 expose_flag, attribs;
+ u8 devtype;
+
+ lun_count = ((phys_luns->list_length[0] << 24)
+ + (phys_luns->list_length[1] << 16)
+ + (phys_luns->list_length[2] << 8)
+ + (phys_luns->list_length[3])) / 24;
+
+ for (i = 0; i < lun_count; ++i) {
+
+ bus = phys_luns->lun[i].level2[1] & 0x3f;
+ target = phys_luns->lun[i].level2[0];
+ expose_flag = phys_luns->lun[i].bus >> 6;
+ attribs = phys_luns->lun[i].node_ident[9];
+ nexus = *((u32 *) &phys_luns->lun[i].node_ident[12]);
+
+ if (bus >= AAC_MAX_BUSES || target >= AAC_MAX_TARGETS)
+ continue;
+
+ dev->hba_map[bus][target].expose = expose_flag;
+
+ if (expose_flag != 0) {
+ devtype = AAC_DEVTYPE_RAID_MEMBER;
+ goto update_devtype;
+ }
+
+ if (nexus != 0 && (attribs & 8)) {
+ devtype = AAC_DEVTYPE_NATIVE_RAW;
+ dev->hba_map[bus][target].rmw_nexus =
+ nexus;
+ } else
+ devtype = AAC_DEVTYPE_ARC_RAW;
+
+ if (devtype != AAC_DEVTYPE_NATIVE_RAW)
+ goto update_devtype;
+
+update_devtype:
+ dev->hba_map[bus][target].devtype = devtype;
+ }
+}
+
+/**
+ * aac_report_phys_luns() Process topology change
+ * @dev: aac_dev structure
+ * @fibptr: fib pointer
+ *
+ * Execute a CISS REPORT PHYS LUNS and process the results into
+ * the current hba_map.
+ */
+int aac_report_phys_luns(struct aac_dev *dev, struct fib *fibptr)
+{
+ int fibsize, datasize;
+ struct aac_ciss_phys_luns_resp *phys_luns;
+ struct aac_srb *srbcmd;
+ struct sgmap64 *sg64;
+ dma_addr_t addr;
+ u32 rcode;
+
+ /* Thor SA Firmware -> CISS_REPORT_PHYSICAL_LUNS */
+ fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry)
+ + sizeof(struct sgentry64);
+ datasize = sizeof(struct aac_ciss_phys_luns_resp)
+ + (AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
+
+ phys_luns = (struct aac_ciss_phys_luns_resp *) pci_alloc_consistent(
+ dev->pdev, datasize, &addr);
+
+ if (phys_luns != NULL) {
+ u32 vbus, vid;
+
+ vbus = (u32) le16_to_cpu(
+ dev->supplement_adapter_info.VirtDeviceBus);
+ vid = (u32) le16_to_cpu(
+ dev->supplement_adapter_info.VirtDeviceTarget);
+
+ aac_fib_init(fibptr);
+
+ srbcmd = (struct aac_srb *) fib_data(fibptr);
+ srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
+ srbcmd->channel = cpu_to_le32(vbus);
+ srbcmd->id = cpu_to_le32(vid);
+ srbcmd->lun = 0;
+ srbcmd->flags = cpu_to_le32(SRB_DataIn);
+ srbcmd->timeout = cpu_to_le32(10);
+ srbcmd->retry_limit = 0;
+ srbcmd->cdb_size = cpu_to_le32(12);
+ srbcmd->count = cpu_to_le32(datasize);
+
+ memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
+ srbcmd->cdb[0] = CISS_REPORT_PHYSICAL_LUNS;
+ srbcmd->cdb[1] = 2; /* extended reporting */
+ srbcmd->cdb[8] = (u8)(datasize >> 8);
+ srbcmd->cdb[9] = (u8)(datasize);
+
+ sg64 = (struct sgmap64 *) &srbcmd->sg;
+ sg64->count = cpu_to_le32(1);
+ sg64->sg[0].addr[1] = cpu_to_le32(upper_32_bits(addr));
+ sg64->sg[0].addr[0] = cpu_to_le32(lower_32_bits(addr));
+ sg64->sg[0].count = cpu_to_le32(datasize);
+
+ rcode = aac_fib_send(ScsiPortCommand64, fibptr, fibsize,
+ FsaNormal, 1, 1, NULL, NULL);
+
+ /* analyse data */
+ if (rcode >= 0 && phys_luns->resp_flag == 2) {
+ /* ok and extended reporting */
+ aac_update_hba_map(dev, phys_luns);
+ }
+ }
+
+ pci_free_consistent(dev->pdev, datasize, (void *) phys_luns, addr);
+ return rcode;
+}
+
int aac_get_adapter_info(struct aac_dev* dev)
{
struct fib* fibptr;
int rcode;
- u32 tmp;
+ u32 tmp, bus, target;
struct aac_adapter_info *info;
struct aac_bus_info *command;
struct aac_bus_info_response *bus_info;
@@ -1544,6 +1671,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
}
memcpy(&dev->adapter_info, info, sizeof(*info));

+ dev->supplement_adapter_info.VirtDeviceBus = 0xffff;
if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
struct aac_supplement_adapter_info * sinfo;

@@ -1571,6 +1699,11 @@ int aac_get_adapter_info(struct aac_dev* dev)

}

+ /* reset all previous mapped devices (i.e. for init. after IOP_RESET) */
+ for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
+ for (target = 0; target < AAC_MAX_TARGETS; target++)
+ dev->hba_map[bus][target].devtype = 0;
+ }

/*
* GetBusInfo
@@ -1603,6 +1736,12 @@ int aac_get_adapter_info(struct aac_dev* dev)
dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
}

+ if (!dev->sync_mode && dev->sa_firmware &&
+ dev->supplement_adapter_info.VirtDeviceBus != 0xffff) {
+ /* Thor SA Firmware -> CISS_REPORT_PHYSICAL_LUNS */
+ rcode = aac_report_phys_luns(dev, fibptr);
+ }
+
if (!dev->in_reset) {
char buffer[16];
tmp = le32_to_cpu(dev->adapter_info.kernelrev);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 057ff78..8c6c4ac 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -81,6 +81,27 @@ enum {

#define AAC_DEBUG_INSTRUMENT_AIF_DELETE

+#define AAC_MAX_NATIVE_TARGETS 1024
+/* Thor: 5 phys. buses: #0: empty, 1-4: 256 targets each */
+#define AAC_MAX_BUSES 5
+#define AAC_MAX_TARGETS 256
+#define AAC_MAX_NATIVE_SIZE 2048
+
+#define CISS_REPORT_PHYSICAL_LUNS 0xc3
+
+struct aac_ciss_phys_luns_resp {
+ u8 list_length[4]; /* LUN list length (N-7, big endian) */
+ u8 resp_flag; /* extended response_flag */
+ u8 reserved[3];
+ struct _ciss_lun {
+ u8 tid[3]; /* Target ID */
+ u8 bus; /* Bus, flag (bits 6,7) */
+ u8 level3[2];
+ u8 level2[2];
+ u8 node_ident[16]; /* phys. node identifier */
+ } lun[1]; /* List of phys. devices */
+};
+
/*
* Interrupts
*/
@@ -993,6 +1014,20 @@ struct fib {
dma_addr_t hw_fib_pa; /* physical address of hw_fib*/
};

+#define AAC_DEVTYPE_RAID_MEMBER 1
+#define AAC_DEVTYPE_ARC_RAW 2
+#define AAC_DEVTYPE_NATIVE_RAW 3
+#define AAC_EXPOSE_DISK 0
+#define AAC_HIDE_DISK 3
+
+struct aac_hba_map_info {
+ __le32 rmw_nexus; /* nexus for native HBA devices */
+ u8 devtype; /* device type */
+ u8 reset_state; /* 0 - no reset, 1..x - */
+ /* after xth TM LUN reset */
+ u8 expose; /*checks if to expose or not*/
+};
+
/*
* Adapter Information Block
*
@@ -1056,7 +1091,28 @@ struct aac_supplement_adapter_info
/* StructExpansion == 1 */
__le32 FeatureBits3;
__le32 SupportedPerformanceModes;
- __le32 ReservedForFutureGrowth[80];
+ u8 HostBusType; /* uses HOST_BUS_TYPE_xxx defines */
+ u8 HostBusWidth; /* actual width in bits or links */
+ u16 HostBusSpeed; /* actual bus speed/link rate in MHz */
+ u8 MaxRRCDrives; /* max. number of ITP-RRC drives/pool */
+ u8 MaxDiskXtasks; /* max. possible num of DiskX Tasks */
+
+ u8 CpldVerLoaded;
+ u8 CpldVerInFlash;
+
+ __le64 MaxRRCCapacity;
+ __le32 CompiledMaxHistLogLevel;
+ u8 CustomBoardName[12];
+ u16 SupportedCntlrMode; /* identify supported controller mode */
+ u16 ReservedForFuture16;
+ __le32 SupportedOptions3; /* reserved for future options */
+
+ __le16 VirtDeviceBus; /* virt. SCSI device for Thor */
+ __le16 VirtDeviceTarget;
+ __le16 VirtDeviceLUN;
+ __le16 Unused;
+ __le32 ReservedForFutureGrowth[68];
+
};
#define AAC_FEATURE_FALCON cpu_to_le32(0x00000010)
#define AAC_FEATURE_JBOD cpu_to_le32(0x08000000)
@@ -1287,6 +1343,7 @@ struct aac_dev
u32 vector_cap; /* MSI-X vector capab.*/
int msi_enabled; /* MSI/MSI-X enabled */
struct aac_msix_ctx aac_msix[AAC_MAX_MSIX]; /* context */
+ struct aac_hba_map_info hba_map[AAC_MAX_BUSES][AAC_MAX_TARGETS];
u8 adapter_shutdown;
u32 handle_pci_error;
};
@@ -2171,6 +2228,7 @@ static inline unsigned int cap_to_cyls(sector_t capacity, unsigned divisor)

int aac_acquire_irq(struct aac_dev *dev);
void aac_free_irq(struct aac_dev *dev);
+int aac_report_phys_luns(struct aac_dev *dev, struct fib *fibptr);
const char *aac_driverinfo(struct Scsi_Host *);
void aac_fib_vector_assign(struct aac_dev *dev);
struct fib *aac_fib_alloc(struct aac_dev *dev);
--
2.7.4