ice: Implement Dynamic Device Personalization (DDP) download

Add the required defines, structures, and functions to enable downloading
a DDP package.  Before download, checks are performed to ensure the package
is valid and compatible.

Note that package download is not yet requested by the driver as further
initialization is required to utilize the package.

Signed-off-by: Tony Nguyen <[email protected]>
Tested-by: Andrew Bowers <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>

drivers/net/ethernet/intel/ice/Makefile

@@ -15,6 +15,7 @@ ice-y := ice_main.o	\
 	 ice_sched.o	\
 	 ice_lib.o	\
 	 ice_txrx.o	\
+	 ice_flex_pipe.o	\
 	 ice_ethtool.o
 ice-$(CONFIG_PCI_IOV) += ice_virtchnl_pf.o ice_sriov.o
 ice-$(CONFIG_DCB) += ice_dcb.o ice_dcb_lib.o

drivers/net/ethernet/intel/ice/ice_adminq_cmd.h

@@ -1530,6 +1530,56 @@ struct ice_aqc_get_clear_fw_log {
 	__le32 addr_low;
 };
 
+/* Download Package (indirect 0x0C40) */
+/* Also used for Update Package (indirect 0x0C42) */
+struct ice_aqc_download_pkg {
+	u8 flags;
+#define ICE_AQC_DOWNLOAD_PKG_LAST_BUF	0x01
+	u8 reserved[3];
+	__le32 reserved1;
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+struct ice_aqc_download_pkg_resp {
+	__le32 error_offset;
+	__le32 error_info;
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+/* Get Package Info List (indirect 0x0C43) */
+struct ice_aqc_get_pkg_info_list {
+	__le32 reserved1;
+	__le32 reserved2;
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+/* Version format for packages */
+struct ice_pkg_ver {
+	u8 major;
+	u8 minor;
+	u8 update;
+	u8 draft;
+};
+
+#define ICE_PKG_NAME_SIZE	32
+
+struct ice_aqc_get_pkg_info {
+	struct ice_pkg_ver ver;
+	char name[ICE_PKG_NAME_SIZE];
+	u8 is_in_nvm;
+	u8 is_active;
+	u8 is_active_at_boot;
+	u8 is_modified;
+};
+
+/* Get Package Info List response buffer format (0x0C43) */
+struct ice_aqc_get_pkg_info_resp {
+	__le32 count;
+	struct ice_aqc_get_pkg_info pkg_info[1];
+};
 /**
  * struct ice_aq_desc - Admin Queue (AQ) descriptor
  * @flags: ICE_AQ_FLAG_* flags
@@ -1592,6 +1642,7 @@ struct ice_aq_desc {
 		struct ice_aqc_add_update_free_vsi_resp add_update_free_vsi_res;
 		struct ice_aqc_fw_logging fw_logging;
 		struct ice_aqc_get_clear_fw_log get_clear_fw_log;
+		struct ice_aqc_download_pkg download_pkg;
 		struct ice_aqc_set_mac_lb set_mac_lb;
 		struct ice_aqc_alloc_free_res_cmd sw_res_ctrl;
 		struct ice_aqc_set_event_mask set_event_mask;
@@ -1624,6 +1675,11 @@ enum ice_aq_err {
 	ICE_AQ_RC_EEXIST	= 13, /* Object already exists */
 	ICE_AQ_RC_ENOSPC	= 16, /* No space left or allocation failure */
 	ICE_AQ_RC_ENOSYS	= 17, /* Function not implemented */
+	ICE_AQ_RC_ENOSEC	= 24, /* Missing security manifest */
+	ICE_AQ_RC_EBADSIG	= 25, /* Bad RSA signature */
+	ICE_AQ_RC_ESVN		= 26, /* SVN number prohibits this package */
+	ICE_AQ_RC_EBADMAN	= 27, /* Manifest hash mismatch */
+	ICE_AQ_RC_EBADBUF	= 28, /* Buffer hash mismatches manifest */
 };
 
 /* Admin Queue command opcodes */
@@ -1712,6 +1768,10 @@ enum ice_adminq_opc {
 	ice_aqc_opc_add_txqs				= 0x0C30,
 	ice_aqc_opc_dis_txqs				= 0x0C31,
 
+	/* package commands */
+	ice_aqc_opc_download_pkg			= 0x0C40,
+	ice_aqc_opc_get_pkg_info_list			= 0x0C43,
+
 	/* debug commands */
 	ice_aqc_opc_fw_logging				= 0xFF09,
 	ice_aqc_opc_fw_logging_info			= 0xFF10,

drivers/net/ethernet/intel/ice/ice_common.c

@@ -910,6 +910,7 @@ void ice_deinit_hw(struct ice_hw *hw)
 
 	ice_sched_cleanup_all(hw);
 	ice_sched_clear_agg(hw);
+	ice_free_seg(hw);
 
 	if (hw->port_info) {
 		devm_kfree(ice_hw_to_dev(hw), hw->port_info);
@@ -1230,6 +1231,12 @@ ice_debug_cq(struct ice_hw *hw, u32 __maybe_unused mask, void *desc, void *buf,
 
 /* FW Admin Queue command wrappers */
 
+/* Software lock/mutex that is meant to be held while the Global Config Lock
+ * in firmware is acquired by the software to prevent most (but not all) types
+ * of AQ commands from being sent to FW
+ */
+DEFINE_MUTEX(ice_global_cfg_lock_sw);
+
 /**
  * ice_aq_send_cmd - send FW Admin Queue command to FW Admin Queue
  * @hw: pointer to the HW struct
@@ -1244,7 +1251,38 @@ enum ice_status
 ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf,
 		u16 buf_size, struct ice_sq_cd *cd)
 {
-	return ice_sq_send_cmd(hw, &hw->adminq, desc, buf, buf_size, cd);
+	struct ice_aqc_req_res *cmd = &desc->params.res_owner;
+	bool lock_acquired = false;
+	enum ice_status status;
+
+	/* When a package download is in process (i.e. when the firmware's
+	 * Global Configuration Lock resource is held), only the Download
+	 * Package, Get Version, Get Package Info List and Release Resource
+	 * (with resource ID set to Global Config Lock) AdminQ commands are
+	 * allowed; all others must block until the package download completes
+	 * and the Global Config Lock is released.  See also
+	 * ice_acquire_global_cfg_lock().
+	 */
+	switch (le16_to_cpu(desc->opcode)) {
+	case ice_aqc_opc_download_pkg:
+	case ice_aqc_opc_get_pkg_info_list:
+	case ice_aqc_opc_get_ver:
+		break;
+	case ice_aqc_opc_release_res:
+		if (le16_to_cpu(cmd->res_id) == ICE_AQC_RES_ID_GLBL_LOCK)
+			break;
+		/* fall-through */
+	default:
+		mutex_lock(&ice_global_cfg_lock_sw);
+		lock_acquired = true;
+		break;
+	}
+
+	status = ice_sq_send_cmd(hw, &hw->adminq, desc, buf, buf_size, cd);
+	if (lock_acquired)
+		mutex_unlock(&ice_global_cfg_lock_sw);
+
+	return status;
 }
 
 /**

drivers/net/ethernet/intel/ice/ice_common.h

@@ -6,6 +6,7 @@
 
 #include "ice.h"
 #include "ice_type.h"
+#include "ice_flex_pipe.h"
 #include "ice_switch.h"
 #include <linux/avf/virtchnl.h>
 
@@ -66,6 +67,9 @@ void ice_fill_dflt_direct_cmd_desc(struct ice_aq_desc *desc, u16 opcode);
 extern const struct ice_ctx_ele ice_tlan_ctx_info[];
 enum ice_status
 ice_set_ctx(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info);
+
+extern struct mutex ice_global_cfg_lock_sw;
+
 enum ice_status
 ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc,
 		void *buf, u16 buf_size, struct ice_sq_cd *cd);