[SCSI] mptsas: support link error attributes

.. and the fusion part.  I had to move around the debug functions around
a little bit so they are below the transport class methods.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 153 insertions, 73 deletions

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 7de19a84dc7..6512027bc69 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -123,6 +123,101 @@ struct mptsas_portinfo {
         struct mptsas_phyinfo *phy_info;
 };
 
+
+#ifdef SASDEBUG
+static void mptsas_print_phy_data(MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
+{
+        printk("---- IO UNIT PAGE 0 ------------\n");
+        printk("Handle=0x%X\n",
+                le16_to_cpu(phy_data->AttachedDeviceHandle));
+        printk("Controller Handle=0x%X\n",
+                le16_to_cpu(phy_data->ControllerDevHandle));
+        printk("Port=0x%X\n", phy_data->Port);
+        printk("Port Flags=0x%X\n", phy_data->PortFlags);
+        printk("PHY Flags=0x%X\n", phy_data->PhyFlags);
+        printk("Negotiated Link Rate=0x%X\n", phy_data->NegotiatedLinkRate);
+        printk("Controller PHY Device Info=0x%X\n",
+                le32_to_cpu(phy_data->ControllerPhyDeviceInfo));
+        printk("DiscoveryStatus=0x%X\n",
+                le32_to_cpu(phy_data->DiscoveryStatus));
+        printk("\n");
+}
+
+static void mptsas_print_phy_pg0(SasPhyPage0_t *pg0)
+{
+        __le64 sas_address;
+
+        memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
+
+        printk("---- SAS PHY PAGE 0 ------------\n");
+        printk("Attached Device Handle=0x%X\n",
+                        le16_to_cpu(pg0->AttachedDevHandle));
+        printk("SAS Address=0x%llX\n",
+                        (unsigned long long)le64_to_cpu(sas_address));
+        printk("Attached PHY Identifier=0x%X\n", pg0->AttachedPhyIdentifier);
+        printk("Attached Device Info=0x%X\n",
+                        le32_to_cpu(pg0->AttachedDeviceInfo));
+        printk("Programmed Link Rate=0x%X\n", pg0->ProgrammedLinkRate);
+        printk("Change Count=0x%X\n", pg0->ChangeCount);
+        printk("PHY Info=0x%X\n", le32_to_cpu(pg0->PhyInfo));
+        printk("\n");
+}
+
+static void mptsas_print_phy_pg1(SasPhyPage1_t *pg1)
+{
+        printk("---- SAS PHY PAGE 1 ------------\n");
+        printk("Invalid Dword Count=0x%x\n", pg1->InvalidDwordCount);
+        printk("Running Disparity Error Count=0x%x\n",
+                        pg1->RunningDisparityErrorCount);
+        printk("Loss Dword Synch Count=0x%x\n", pg1->LossDwordSynchCount);
+        printk("PHY Reset Problem Count=0x%x\n", pg1->PhyResetProblemCount);
+        printk("\n");
+}
+
+static void mptsas_print_device_pg0(SasDevicePage0_t *pg0)
+{
+        __le64 sas_address;
+
+        memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
+
+        printk("---- SAS DEVICE PAGE 0 ---------\n");
+        printk("Handle=0x%X\n" ,le16_to_cpu(pg0->DevHandle));
+        printk("Enclosure Handle=0x%X\n", le16_to_cpu(pg0->EnclosureHandle));
+        printk("Slot=0x%X\n", le16_to_cpu(pg0->Slot));
+        printk("SAS Address=0x%llX\n", le64_to_cpu(sas_address));
+        printk("Target ID=0x%X\n", pg0->TargetID);
+        printk("Bus=0x%X\n", pg0->Bus);
+        printk("PhyNum=0x%X\n", pg0->PhyNum);
+        printk("AccessStatus=0x%X\n", le16_to_cpu(pg0->AccessStatus));
+        printk("Device Info=0x%X\n", le32_to_cpu(pg0->DeviceInfo));
+        printk("Flags=0x%X\n", le16_to_cpu(pg0->Flags));
+        printk("Physical Port=0x%X\n", pg0->PhysicalPort);
+        printk("\n");
+}
+
+static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1)
+{
+        printk("---- SAS EXPANDER PAGE 1 ------------\n");
+
+        printk("Physical Port=0x%X\n", pg1->PhysicalPort);
+        printk("PHY Identifier=0x%X\n", pg1->Phy);
+        printk("Negotiated Link Rate=0x%X\n", pg1->NegotiatedLinkRate);
+        printk("Programmed Link Rate=0x%X\n", pg1->ProgrammedLinkRate);
+        printk("Hardware Link Rate=0x%X\n", pg1->HwLinkRate);
+        printk("Owner Device Handle=0x%X\n",
+                        le16_to_cpu(pg1->OwnerDevHandle));
+        printk("Attached Device Handle=0x%X\n",
+                        le16_to_cpu(pg1->AttachedDevHandle));
+}
+#else
+#define mptsas_print_phy_data(phy_data)         do { } while (0)
+#define mptsas_print_phy_pg0(pg0)               do { } while (0)
+#define mptsas_print_phy_pg1(pg1)               do { } while (0)
+#define mptsas_print_device_pg0(pg0)            do { } while (0)
+#define mptsas_print_expander_pg1(pg1)          do { } while (0)
+#endif
+
+
 /*
  * This is pretty ugly.  We will be able to seriously clean it up
  * once the DV code in mptscsih goes away and we can properly
@@ -200,91 +295,76 @@ static struct scsi_host_template mptsas_driver_template = {
         .use_clustering                 = ENABLE_CLUSTERING,
 };
 
-static struct sas_function_template mptsas_transport_functions = {
-};
-
-static struct scsi_transport_template *mptsas_transport_template;
-
-#ifdef SASDEBUG
-static void mptsas_print_phy_data(MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
+static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
 {
-        printk("---- IO UNIT PAGE 0 ------------\n");
-        printk("Handle=0x%X\n",
-                le16_to_cpu(phy_data->AttachedDeviceHandle));
-        printk("Controller Handle=0x%X\n",
-                le16_to_cpu(phy_data->ControllerDevHandle));
-        printk("Port=0x%X\n", phy_data->Port);
-        printk("Port Flags=0x%X\n", phy_data->PortFlags);
-        printk("PHY Flags=0x%X\n", phy_data->PhyFlags);
-        printk("Negotiated Link Rate=0x%X\n", phy_data->NegotiatedLinkRate);
-        printk("Controller PHY Device Info=0x%X\n",
-                le32_to_cpu(phy_data->ControllerPhyDeviceInfo));
-        printk("DiscoveryStatus=0x%X\n",
-                le32_to_cpu(phy_data->DiscoveryStatus));
-        printk("\n");
+        struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+        return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
 }
 
-static void mptsas_print_phy_pg0(SasPhyPage0_t *pg0)
+static int mptsas_get_linkerrors(struct sas_phy *phy)
 {
-        __le64 sas_address;
+        MPT_ADAPTER *ioc = phy_to_ioc(phy);
+        ConfigExtendedPageHeader_t hdr;
+        CONFIGPARMS cfg;
+        SasPhyPage1_t *buffer;
+        dma_addr_t dma_handle;
+        int error;
 
-        memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
+        hdr.PageVersion = MPI_SASPHY1_PAGEVERSION;
+        hdr.ExtPageLength = 0;
+        hdr.PageNumber = 1 /* page number 1*/;
+        hdr.Reserved1 = 0;
+        hdr.Reserved2 = 0;
+        hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
+        hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY;
 
-        printk("---- SAS PHY PAGE 0 ------------\n");
-        printk("Attached Device Handle=0x%X\n",
-                        le16_to_cpu(pg0->AttachedDevHandle));
-        printk("SAS Address=0x%llX\n",
-                        (unsigned long long)le64_to_cpu(sas_address));
-        printk("Attached PHY Identifier=0x%X\n", pg0->AttachedPhyIdentifier);
-        printk("Attached Device Info=0x%X\n",
-                        le32_to_cpu(pg0->AttachedDeviceInfo));
-        printk("Programmed Link Rate=0x%X\n", pg0->ProgrammedLinkRate);
-        printk("Change Count=0x%X\n", pg0->ChangeCount);
-        printk("PHY Info=0x%X\n", le32_to_cpu(pg0->PhyInfo));
-        printk("\n");
-}
+        cfg.cfghdr.ehdr = &hdr;
+        cfg.physAddr = -1;
+        cfg.pageAddr = phy->identify.phy_identifier;
+        cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
+        cfg.dir = 0;    /* read */
+        cfg.timeout = 10;
 
-static void mptsas_print_device_pg0(SasDevicePage0_t *pg0)
-{
-        __le64 sas_address;
+        error = mpt_config(ioc, &cfg);
+        if (error)
+                return error;
+        if (!hdr.ExtPageLength)
+                return -ENXIO;
 
-        memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
+        buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
+                                      &dma_handle);
+        if (!buffer)
+                return -ENOMEM;
 
-        printk("---- SAS DEVICE PAGE 0 ---------\n");
-        printk("Handle=0x%X\n" ,le16_to_cpu(pg0->DevHandle));
-        printk("Enclosure Handle=0x%X\n", le16_to_cpu(pg0->EnclosureHandle));
-        printk("Slot=0x%X\n", le16_to_cpu(pg0->Slot));
-        printk("SAS Address=0x%llX\n", le64_to_cpu(sas_address));
-        printk("Target ID=0x%X\n", pg0->TargetID);
-        printk("Bus=0x%X\n", pg0->Bus);
-        printk("Parent Phy Num=0x%X\n", pg0->PhyNum);
-        printk("Access Status=0x%X\n", le16_to_cpu(pg0->AccessStatus));
-        printk("Device Info=0x%X\n", le32_to_cpu(pg0->DeviceInfo));
-        printk("Flags=0x%X\n", le16_to_cpu(pg0->Flags));
-        printk("Physical Port=0x%X\n", pg0->PhysicalPort);
-        printk("\n");
-}
+        cfg.physAddr = dma_handle;
+        cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 
-static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1)
-{
-        printk("---- SAS EXPANDER PAGE 1 ------------\n");
+        error = mpt_config(ioc, &cfg);
+        if (error)
+                goto out_free_consistent;
 
-        printk("Physical Port=0x%X\n", pg1->PhysicalPort);
-        printk("PHY Identifier=0x%X\n", pg1->PhyIdentifier);
-        printk("Negotiated Link Rate=0x%X\n", pg1->NegotiatedLinkRate);
-        printk("Programmed Link Rate=0x%X\n", pg1->ProgrammedLinkRate);
-        printk("Hardware Link Rate=0x%X\n", pg1->HwLinkRate);
-        printk("Owner Device Handle=0x%X\n",
-                        le16_to_cpu(pg1->OwnerDevHandle));
-        printk("Attached Device Handle=0x%X\n",
-                        le16_to_cpu(pg1->AttachedDevHandle));
+        mptsas_print_phy_pg1(buffer);
+
+        phy->invalid_dword_count = le32_to_cpu(buffer->InvalidDwordCount);
+        phy->running_disparity_error_count =
+                le32_to_cpu(buffer->RunningDisparityErrorCount);
+        phy->loss_of_dword_sync_count =
+                le32_to_cpu(buffer->LossDwordSynchCount);
+        phy->phy_reset_problem_count =
+                le32_to_cpu(buffer->PhyResetProblemCount);
+
+ out_free_consistent:
+        pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
+                            buffer, dma_handle);
+        return error;
 }
-#else
-#define mptsas_print_phy_data(phy_data)         do { } while (0)
-#define mptsas_print_phy_pg0(pg0)               do { } while (0)
-#define mptsas_print_device_pg0(pg0)            do { } while (0)
-#define mptsas_print_expander_pg1(pg1)          do { } while (0)
-#endif
+
+
+static struct sas_function_template mptsas_transport_functions = {
+        .get_linkerrors         = mptsas_get_linkerrors,
+};
+
+static struct scsi_transport_template *mptsas_transport_template;
 
 static int
 mptsas_sas_io_unit_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)