This is the initial patch for the new Emulex target mode SCSI
driver sources.
This patch:
- Creates the new Emulex source level directory drivers/scsi/elx
and adds the directory to the MAINTAINERS file.
- Creates the first library subdirectory drivers/scsi/elx/libefc_sli.
This library is a SLI-4 interface library.
- Starts the population of the libefc_sli library with definitions
of SLI-4 hardware register offsets and definitions.
Co-developed-by: Ram Vegesna <ram.vegesna@xxxxxxxxxxxx>
Signed-off-by: Ram Vegesna <ram.vegesna@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Daniel Wagner <dwagner@xxxxxxx>
---
v9:
Non-functional changes:
Remove EFC_SUCCESS/EFC_FAIL defines and use 0 and -Exxx errno values.
Remove EFCT_xxx/EFCT_HW_RTN_xxx defines and use appropriate -Exxx errno
values.
Correct indentation on line continuations.
---
MAINTAINERS | 9 +
drivers/scsi/elx/libefc_sli/sli4.c | 22 +++
drivers/scsi/elx/libefc_sli/sli4.h | 308 +++++++++++++++++++++++++++++
3 files changed, 339 insertions(+)
create mode 100644 drivers/scsi/elx/libefc_sli/sli4.c
create mode 100644 drivers/scsi/elx/libefc_sli/sli4.h
diff --git a/MAINTAINERS b/MAINTAINERS
index bd7aff0c120f..529bdc6c44ad 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6736,6 +6736,15 @@ S: Supported
W: http://www.broadcom.com
F: drivers/scsi/lpfc/
+EMULEX/BROADCOM EFCT FC/FCOE SCSI TARGET DRIVER
+M: James Smart <james.smart@xxxxxxxxxxxx>
+M: Ram Vegesna <ram.vegesna@xxxxxxxxxxxx>
+L: linux-scsi@xxxxxxxxxxxxxxx
+L: target-devel@xxxxxxxxxxxxxxx
+S: Supported
+W: http://www.broadcom.com
+F: drivers/scsi/elx/
+
ENE CB710 FLASH CARD READER DRIVER
M: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
S: Maintained
diff --git a/drivers/scsi/elx/libefc_sli/sli4.c b/drivers/scsi/elx/libefc_sli/sli4.c
new file mode 100644
index 000000000000..60cd7e674802
--- /dev/null
+++ b/drivers/scsi/elx/libefc_sli/sli4.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
+ */
+
+/**
+ * All common (i.e. transport-independent) SLI-4 functions are implemented
+ * in this file.
+ */
+#include "sli4.h"
+
+static struct sli4_asic_entry_t sli4_asic_table[] = {
+ { SLI4_ASIC_REV_B0, SLI4_ASIC_GEN_5},
+ { SLI4_ASIC_REV_D0, SLI4_ASIC_GEN_5},
+ { SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6},
+ { SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_6},
+ { SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_6},
+ { SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6},
+ { SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_7},
+ { SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_7},
+};
diff --git a/drivers/scsi/elx/libefc_sli/sli4.h b/drivers/scsi/elx/libefc_sli/sli4.h
new file mode 100644
index 000000000000..f8e4b2355721
--- /dev/null
+++ b/drivers/scsi/elx/libefc_sli/sli4.h
@@ -0,0 +1,308 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ */
+
+/*
+ * All common SLI-4 structures and function prototypes.
+ */
+
+#ifndef _SLI4_H
+#define _SLI4_H
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include "scsi/fc/fc_els.h"
+#include "scsi/fc/fc_fs.h"
+#include "../include/efc_common.h"
+
+/*************************************************************************
+ * Common SLI-4 register offsets and field definitions
+ */
+
+/* SLI_INTF - SLI Interface Definition Register */
+#define SLI4_INTF_REG 0x0058
+enum sli4_intf {
+ SLI4_INTF_REV_SHIFT = 4,
+ SLI4_INTF_REV_MASK = 0xf0,
+
+ SLI4_INTF_REV_S3 = 0x30,
+ SLI4_INTF_REV_S4 = 0x40,
+
+ SLI4_INTF_FAMILY_SHIFT = 8,
+ SLI4_INTF_FAMILY_MASK = 0x0f00,
+
+ SLI4_FAMILY_CHECK_ASIC_TYPE = 0x0f00,
+
+ SLI4_INTF_IF_TYPE_SHIFT = 12,
+ SLI4_INTF_IF_TYPE_MASK = 0xf000,
+
+ SLI4_INTF_IF_TYPE_2 = 0x2000,
+ SLI4_INTF_IF_TYPE_6 = 0x6000,
+
+ SLI4_INTF_VALID_SHIFT = 29,
+ SLI4_INTF_VALID_MASK = 0xe0000000,
+
+ SLI4_INTF_VALID_VALUE = 0xc0000000,
+};
+
+/* ASIC_ID - SLI ASIC Type and Revision Register */
+#define SLI4_ASIC_ID_REG 0x009c
+enum sli4_asic {
+ SLI4_ASIC_GEN_SHIFT = 8,
+ SLI4_ASIC_GEN_MASK = 0xff00,
+ SLI4_ASIC_GEN_5 = 0x0b00,
+ SLI4_ASIC_GEN_6 = 0x0c00,
+ SLI4_ASIC_GEN_7 = 0x0d00,
+};
+
+enum sli4_acic_revisions {
+ SLI4_ASIC_REV_A0 = 0x00,
+ SLI4_ASIC_REV_A1 = 0x01,
+ SLI4_ASIC_REV_A2 = 0x02,
+ SLI4_ASIC_REV_A3 = 0x03,
+ SLI4_ASIC_REV_B0 = 0x10,
+ SLI4_ASIC_REV_B1 = 0x11,
+ SLI4_ASIC_REV_B2 = 0x12,
+ SLI4_ASIC_REV_C0 = 0x20,
+ SLI4_ASIC_REV_C1 = 0x21,
+ SLI4_ASIC_REV_C2 = 0x22,
+ SLI4_ASIC_REV_D0 = 0x30,
+};
+
+struct sli4_asic_entry_t {
+ u32 rev_id;
+ u32 family;
+};
+
+/* BMBX - Bootstrap Mailbox Register */
+#define SLI4_BMBX_REG 0x0160
+enum sli4_bmbx {
+ SLI4_BMBX_MASK_HI = 0x3,
+ SLI4_BMBX_MASK_LO = 0xf,
+ SLI4_BMBX_RDY = 1 << 0,
+ SLI4_BMBX_HI = 1 << 1,
+ SLI4_BMBX_SIZE = 256,
+};
+
+static inline u32
+sli_bmbx_write_hi(u64 addr) {
+ u32 val;
+
+ val = upper_32_bits(addr) & ~SLI4_BMBX_MASK_HI;
+ val |= SLI4_BMBX_HI;
+
+ return val;
+}
+
+static inline u32
+sli_bmbx_write_lo(u64 addr) {
+ u32 val;
+
+ val = (upper_32_bits(addr) & SLI4_BMBX_MASK_HI) << 30;
+ val |= ((addr) & ~SLI4_BMBX_MASK_LO) >> 2;
+
+ return val;
+}
+
+/* SLIPORT_CONTROL - SLI Port Control Register */
+#define SLI4_PORT_CTRL_REG 0x0408
+enum sli4_port_ctrl {
+ SLI4_PORT_CTRL_IP = 1u << 27,
+ SLI4_PORT_CTRL_IDIS = 1u << 22,
+ SLI4_PORT_CTRL_FDD = 1u << 31,
+};
+
+/* SLI4_SLIPORT_ERROR - SLI Port Error Register */
+#define SLI4_PORT_ERROR1 0x040c
+#define SLI4_PORT_ERROR2 0x0410
+
+/* EQCQ_DOORBELL - EQ and CQ Doorbell Register */
+#define SLI4_EQCQ_DB_REG 0x120
+enum sli4_eqcq_e {
+ SLI4_EQ_ID_LO_MASK = 0x01ff,
+
+ SLI4_CQ_ID_LO_MASK = 0x03ff,
+
+ SLI4_EQCQ_CI_EQ = 0x0200,
+
+ SLI4_EQCQ_QT_EQ = 0x00000400,
+ SLI4_EQCQ_QT_CQ = 0x00000000,
+
+ SLI4_EQCQ_ID_HI_SHIFT = 11,
+ SLI4_EQCQ_ID_HI_MASK = 0xf800,
+
+ SLI4_EQCQ_NUM_SHIFT = 16,
+ SLI4_EQCQ_NUM_MASK = 0x1fff0000,
+
+ SLI4_EQCQ_ARM = 0x20000000,
+ SLI4_EQCQ_UNARM = 0x00000000,
+};
+
+static inline u32
+sli_format_eq_db_data(u16 num_popped, u16 id, u32 arm) {
+ u32 reg;
+
+ reg = (id & SLI4_EQ_ID_LO_MASK) | SLI4_EQCQ_QT_EQ;
+ reg |= (((id) >> 9) << SLI4_EQCQ_ID_HI_SHIFT) & SLI4_EQCQ_ID_HI_MASK;
+ reg |= ((num_popped) << SLI4_EQCQ_NUM_SHIFT) & SLI4_EQCQ_NUM_MASK;
+ reg |= arm | SLI4_EQCQ_CI_EQ;
+
+ return reg;
+}
+
+static inline u32
+sli_format_cq_db_data(u16 num_popped, u16 id, u32 arm) {
+ u32 reg;
+
+ reg = ((id) & SLI4_CQ_ID_LO_MASK) | SLI4_EQCQ_QT_CQ;
+ reg |= (((id) >> 10) << SLI4_EQCQ_ID_HI_SHIFT) & SLI4_EQCQ_ID_HI_MASK;
+ reg |= ((num_popped) << SLI4_EQCQ_NUM_SHIFT) & SLI4_EQCQ_NUM_MASK;
+ reg |= arm;
+
+ return reg;
+}
+
+/* EQ_DOORBELL - EQ Doorbell Register for IF_TYPE = 6*/
+#define SLI4_IF6_EQ_DB_REG 0x120
+enum sli4_eq_e {
+ SLI4_IF6_EQ_ID_MASK = 0x0fff,
+
+ SLI4_IF6_EQ_NUM_SHIFT = 16,
+ SLI4_IF6_EQ_NUM_MASK = 0x1fff0000,
+};
+
+static inline u32
+sli_format_if6_eq_db_data(u16 num_popped, u16 id, u32 arm) {
+ u32 reg;
+
+ reg = id & SLI4_IF6_EQ_ID_MASK;
+ reg |= (num_popped << SLI4_IF6_EQ_NUM_SHIFT) & SLI4_IF6_EQ_NUM_MASK;
+ reg |= arm;
+
+ return reg;
+}
+
+/* CQ_DOORBELL - CQ Doorbell Register for IF_TYPE = 6 */
+#define SLI4_IF6_CQ_DB_REG 0xc0
+enum sli4_cq_e {
+ SLI4_IF6_CQ_ID_MASK = 0xffff,
+
+ SLI4_IF6_CQ_NUM_SHIFT = 16,
+ SLI4_IF6_CQ_NUM_MASK = 0x1fff0000,
+};
+
+static inline u32
+sli_format_if6_cq_db_data(u16 num_popped, u16 id, u32 arm) {
+ u32 reg;
+
+ reg = id & SLI4_IF6_CQ_ID_MASK;
+ reg |= ((num_popped) << SLI4_IF6_CQ_NUM_SHIFT) & SLI4_IF6_CQ_NUM_MASK;
+ reg |= arm;
+
+ return reg;
+}
+
+/* MQ_DOORBELL - MQ Doorbell Register */
+#define SLI4_MQ_DB_REG 0x0140
+#define SLI4_IF6_MQ_DB_REG 0x0160
+enum sli4_mq_e {
+ SLI4_MQ_ID_MASK = 0xffff,
+
+ SLI4_MQ_NUM_SHIFT = 16,
+ SLI4_MQ_NUM_MASK = 0x3fff0000,
+};
+
+static inline u32
+sli_format_mq_db_data(u16 id) {
+ u32 reg;
+
+ reg = id & SLI4_MQ_ID_MASK;
+ reg |= (1 << SLI4_MQ_NUM_SHIFT) & SLI4_MQ_NUM_MASK;
+
+ return reg;
+}
+
+/* RQ_DOORBELL - RQ Doorbell Register */
+#define SLI4_RQ_DB_REG 0x0a0
+#define SLI4_IF6_RQ_DB_REG 0x0080
+enum sli4_rq_e {
+ SLI4_RQ_DB_ID_MASK = 0xffff,
+
+ SLI4_RQ_DB_NUM_SHIFT = 16,
+ SLI4_RQ_DB_NUM_MASK = 0x3fff0000,
+};
+
+static inline u32
+sli_format_rq_db_data(u16 id) {
+ u32 reg;
+
+ reg = id & SLI4_RQ_DB_ID_MASK;
+ reg |= (1 << SLI4_RQ_DB_NUM_SHIFT) & SLI4_RQ_DB_NUM_MASK;
+
+ return reg;
+}
+
+/* WQ_DOORBELL - WQ Doorbell Register */
+#define SLI4_IO_WQ_DB_REG 0x040
+#define SLI4_IF6_WQ_DB_REG 0x040
+enum sli4_wq_e {
+ SLI4_WQ_ID_MASK = 0xffff,
+
+ SLI4_WQ_IDX_SHIFT = 16,
+ SLI4_WQ_IDX_MASK = 0xff0000,
+
+ SLI4_WQ_NUM_SHIFT = 24,
+ SLI4_WQ_NUM_MASK = 0x0ff00000,
+};
+
+static inline u32
+sli_format_wq_db_data(u16 id) {
+ u32 reg;
+
+ reg = id & SLI4_WQ_ID_MASK;
+ reg |= (1 << SLI4_WQ_NUM_SHIFT) & SLI4_WQ_NUM_MASK;
+
+ return reg;
+}
+
+/* SLIPORT_STATUS - SLI Port Status Register */
+#define SLI4_PORT_STATUS_REGOFF 0x0404
+enum sli4_port_status {
+ SLI4_PORT_STATUS_FDP = 1u << 21,
+ SLI4_PORT_STATUS_RDY = 1u << 23,
+ SLI4_PORT_STATUS_RN = 1u << 24,
+ SLI4_PORT_STATUS_DIP = 1u << 25,
+ SLI4_PORT_STATUS_OTI = 1u << 29,
+ SLI4_PORT_STATUS_ERR = 1u << 31,
+};
+
+#define SLI4_PHYDEV_CTRL_REG 0x0414
+#define SLI4_PHYDEV_CTRL_FRST (1 << 1)
+#define SLI4_PHYDEV_CTRL_DD (1 << 2)
+
+/* Register name enums */
+enum sli4_regname_en {
+ SLI4_REG_BMBX,
+ SLI4_REG_EQ_DOORBELL,
+ SLI4_REG_CQ_DOORBELL,
+ SLI4_REG_RQ_DOORBELL,
+ SLI4_REG_IO_WQ_DOORBELL,
+ SLI4_REG_MQ_DOORBELL,
+ SLI4_REG_PHYSDEV_CONTROL,
+ SLI4_REG_PORT_CONTROL,
+ SLI4_REG_PORT_ERROR1,
+ SLI4_REG_PORT_ERROR2,
+ SLI4_REG_PORT_SEMAPHORE,
+ SLI4_REG_PORT_STATUS,
+ SLI4_REG_UNKWOWN /* must be last */
+};
+
+struct sli4_reg {
+ u32 rset;
+ u32 off;
+};
+
+#endif /* !_SLI4_H */
--
2.26.2
