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Diffstat (limited to 'drivers/scsi/qedf/drv_scsi_fw_funcs.h')
-rw-r--r--drivers/scsi/qedf/drv_scsi_fw_funcs.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/scsi/qedf/drv_scsi_fw_funcs.h b/drivers/scsi/qedf/drv_scsi_fw_funcs.h
new file mode 100644
index 000000000..6195f13de
--- /dev/null
+++ b/drivers/scsi/qedf/drv_scsi_fw_funcs.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* QLogic FCoE Offload Driver
+ * Copyright (c) 2016-2018 Cavium Inc.
+ */
+#ifndef _SCSI_FW_FUNCS_H
+#define _SCSI_FW_FUNCS_H
+#include <linux/qed/common_hsi.h>
+#include <linux/qed/storage_common.h>
+#include <linux/qed/fcoe_common.h>
+
+struct scsi_sgl_task_params {
+ struct scsi_sge *sgl;
+ struct regpair sgl_phys_addr;
+ u32 total_buffer_size;
+ u16 num_sges;
+
+ /* true if SGL contains a small (< 4KB) SGE in middle(not 1st or last)
+ * -> relevant for tx only
+ */
+ bool small_mid_sge;
+};
+
+struct scsi_dif_task_params {
+ u32 initial_ref_tag;
+ bool initial_ref_tag_is_valid;
+ u16 application_tag;
+ u16 application_tag_mask;
+ u16 dif_block_size_log;
+ bool dif_on_network;
+ bool dif_on_host;
+ u8 host_guard_type;
+ u8 protection_type;
+ u8 ref_tag_mask;
+ bool crc_seed;
+
+ /* Enable Connection error upon DIF error (segments with DIF errors are
+ * dropped)
+ */
+ bool tx_dif_conn_err_en;
+ bool ignore_app_tag;
+ bool keep_ref_tag_const;
+ bool validate_guard;
+ bool validate_app_tag;
+ bool validate_ref_tag;
+ bool forward_guard;
+ bool forward_app_tag;
+ bool forward_ref_tag;
+ bool forward_app_tag_with_mask;
+ bool forward_ref_tag_with_mask;
+};
+
+struct scsi_initiator_cmd_params {
+ /* for cdb_size > default CDB size (extended CDB > 16 bytes) ->
+ * pointer to the CDB buffer SGE
+ */
+ struct scsi_sge extended_cdb_sge;
+
+ /* Physical address of sense data buffer for sense data - 256B buffer */
+ struct regpair sense_data_buffer_phys_addr;
+};
+
+/**
+ * @brief scsi_is_slow_sgl - checks for slow SGL
+ *
+ * @param num_sges - number of sges in SGL
+ * @param small_mid_sge - True is the SGL contains an SGE which is smaller than
+ * 4KB and its not the 1st or last SGE in the SGL
+ */
+bool scsi_is_slow_sgl(u16 num_sges, bool small_mid_sge);
+
+/**
+ * @brief init_scsi_sgl_context - initializes SGL task context
+ *
+ * @param sgl_params - SGL context parameters to initialize (output parameter)
+ * @param data_desc - context struct containing SGEs array to set (output
+ * parameter)
+ * @param sgl_task_params - SGL parameters (input)
+ */
+void init_scsi_sgl_context(struct scsi_sgl_params *sgl_params,
+ struct scsi_cached_sges *ctx_data_desc,
+ struct scsi_sgl_task_params *sgl_task_params);
+#endif