habanalabs: expose server type in INFO IOCTL

Add the server type property to the hl_info_hw_ip_info structure
that is exposed to the user via the INFO IOCTL.

This is needed by the userspace s/w stack to know the connections map
of the internal links that connect the ASIC among themselves inside the
server.

The F/W will tell us, as part of the NIC information, the server type
that the GAUDI is located in.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c
index 869c605..0be3f54 100644 (file)
--- a/drivers/misc/habanalabs/common/firmware_if.c
+++ b/drivers/misc/habanalabs/common/firmware_if.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
 /*
- * Copyright 2016-2019 HabanaLabs, Ltd.
+ * Copyright 2016-2021 HabanaLabs, Ltd.
  * All Rights Reserved.
  */
 

diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index b72fcc9..6c5c7c8 100644 (file)
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -489,6 +489,8 @@ struct hl_hints_range {
  *                                       reserved for the user
  * @first_available_cq: first available CQ for the user.
  * @user_interrupt_count: number of user interrupts.
+ * @server_type: Server type that the ASIC is currently installed in.
+ *               The value is according to enum hl_server_type in uapi file.
  * @tpc_enabled_mask: which TPCs are enabled.
  * @completion_queues_count: number of completion queues.
  * @fw_security_enabled: true if security measures are enabled in firmware,
@@ -570,6 +572,7 @@ struct asic_fixed_properties {
        u16                             first_available_user_msix_interrupt;
        u16                             first_available_cq[HL_MAX_DCORES];
        u16                             user_interrupt_count;
+       u16                             server_type;
        u8                              tpc_enabled_mask;
        u8                              completion_queues_count;
        u8                              fw_security_enabled;

diff --git a/drivers/misc/habanalabs/common/habanalabs_ioctl.c b/drivers/misc/habanalabs/common/habanalabs_ioctl.c
index f4dda7b..86c3257 100644 (file)
--- a/drivers/misc/habanalabs/common/habanalabs_ioctl.c
+++ b/drivers/misc/habanalabs/common/habanalabs_ioctl.c
@@ -94,6 +94,8 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args)
 
        hw_ip.first_available_interrupt_id =
                        prop->first_available_user_msix_interrupt;
+       hw_ip.server_type = prop->server_type;
+
        return copy_to_user(out, &hw_ip,
                min((size_t) size, sizeof(hw_ip))) ? -EFAULT : 0;
 }

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 6187e2e..d3bd584 100644 (file)
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -642,6 +642,8 @@ static int gaudi_set_fixed_properties(struct hl_device *hdev)
        prop->hard_reset_done_by_fw = false;
        prop->gic_interrupts_enable = true;
 
+       prop->server_type = HL_SERVER_TYPE_UNKNOWN;
+
        return 0;
 }
 

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index c070cd1..8d890c7 100644 (file)
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -469,6 +469,8 @@ int goya_set_fixed_properties(struct hl_device *hdev)
        prop->hard_reset_done_by_fw = false;
        prop->gic_interrupts_enable = true;
 
+       prop->server_type = HL_SERVER_TYPE_UNKNOWN;
+
        return 0;
 }
 

diff --git a/drivers/misc/habanalabs/include/common/cpucp_if.h b/drivers/misc/habanalabs/include/common/cpucp_if.h
index 80b1d5a..2d6f8ea 100644 (file)
--- a/drivers/misc/habanalabs/include/common/cpucp_if.h
+++ b/drivers/misc/habanalabs/include/common/cpucp_if.h
@@ -700,6 +700,15 @@ struct cpucp_mac_addr {
        __u8 mac_addr[ETH_ALEN];
 };
 
+enum cpucp_serdes_type {
+       TYPE_1_SERDES_TYPE,
+       TYPE_2_SERDES_TYPE,
+       HLS1_SERDES_TYPE,
+       HLS1H_SERDES_TYPE,
+       UNKNOWN_SERDES_TYPE,
+       MAX_NUM_SERDES_TYPE = UNKNOWN_SERDES_TYPE
+};
+
 struct cpucp_nic_info {
        struct cpucp_mac_addr mac_addrs[CPUCP_MAX_NICS];
        __le64 link_mask[CPUCP_NIC_MASK_ARR_LEN];
@@ -708,6 +717,8 @@ struct cpucp_nic_info {
        __le64 link_ext_mask[CPUCP_NIC_MASK_ARR_LEN];
        __u8 qsfp_eeprom[CPUCP_NIC_QSFP_EEPROM_MAX_LEN];
        __le64 auto_neg_mask[CPUCP_NIC_MASK_ARR_LEN];
+       __le16 serdes_type; /* enum cpucp_serdes_type */
+       __u8 reserved[6];
 };
 
 #endif /* CPUCP_IF_H */

diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index eca86c5..6686b73 100644 (file)
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -279,6 +279,14 @@ enum hl_device_status {
        HL_DEVICE_STATUS_NEEDS_RESET
 };
 
+enum hl_server_type {
+       HL_SERVER_TYPE_UNKNOWN = 0,
+       HL_SERVER_GAUDI_HLS1 = 1,
+       HL_SERVER_GAUDI_HLS1H = 2,
+       HL_SERVER_GAUDI_TYPE1 = 3,
+       HL_SERVER_GAUDI_TYPE2 = 4
+};
+
 /* Opcode for management ioctl
  *
  * HW_IP_INFO            - Receive information about different IP blocks in the
@@ -337,17 +345,49 @@ enum hl_device_status {
 #define HL_INFO_VERSION_MAX_LEN        128
 #define HL_INFO_CARD_NAME_MAX_LEN      16
 
+/**
+ * struct hl_info_hw_ip_info - hardware information on various IPs in the ASIC
+ * @sram_base_address: The first SRAM physical base address that is free to be
+ *                     used by the user.
+ * @dram_base_address: The first DRAM virtual or physical base address that is
+ *                     free to be used by the user.
+ * @dram_size: The DRAM size that is available to the user.
+ * @sram_size: The SRAM size that is available to the user.
+ * @num_of_events: The number of events that can be received from the f/w. This
+ *                 is needed so the user can what is the size of the h/w events
+ *                 array he needs to pass to the kernel when he wants to fetch
+ *                 the event counters.
+ * @device_id: PCI device ID of the ASIC.
+ * @module_id: Module ID of the ASIC for mezzanine cards in servers
+ *             (From OCP spec).
+ * @first_available_interrupt_id: The first available interrupt ID for the user
+ *                                to be used when it works with user interrupts.
+ * @server_type: Server type that the Gaudi ASIC is currently installed in.
+ *               The value is according to enum hl_server_type
+ * @cpld_version: CPLD version on the board.
+ * @psoc_pci_pll_nr: PCI PLL NR value. Needed by the profiler in some ASICs.
+ * @psoc_pci_pll_nf: PCI PLL NF value. Needed by the profiler in some ASICs.
+ * @psoc_pci_pll_od: PCI PLL OD value. Needed by the profiler in some ASICs.
+ * @psoc_pci_pll_div_factor: PCI PLL DIV factor value. Needed by the profiler
+ *                           in some ASICs.
+ * @tpc_enabled_mask: Bit-mask that represents which TPCs are enabled. Relevant
+ *                    for Goya/Gaudi only.
+ * @dram_enabled: Whether the DRAM is enabled.
+ * @cpucp_version: The CPUCP f/w version.
+ * @card_name: The card name as passed by the f/w.
+ * @dram_page_size: The DRAM physical page size.
+ */
 struct hl_info_hw_ip_info {
        __u64 sram_base_address;
        __u64 dram_base_address;
        __u64 dram_size;
        __u32 sram_size;
        __u32 num_of_events;
-       __u32 device_id; /* PCI Device ID */
-       __u32 module_id; /* For mezzanine cards in servers (From OCP spec.) */
+       __u32 device_id;
+       __u32 module_id;
        __u32 reserved;
        __u16 first_available_interrupt_id;
-       __u16 reserved2;
+       __u16 server_type;
        __u32 cpld_version;
        __u32 psoc_pci_pll_nr;
        __u32 psoc_pci_pll_nf;
@@ -358,7 +398,7 @@ struct hl_info_hw_ip_info {
        __u8 pad[2];
        __u8 cpucp_version[HL_INFO_VERSION_MAX_LEN];
        __u8 card_name[HL_INFO_CARD_NAME_MAX_LEN];
-       __u64 reserved3;
+       __u64 reserved2;
        __u64 dram_page_size;
 };