Merge branch 'liquidio-CN23XX-VF-support'

Raghu Vatsavayi says:

====================
liquidio CN23XX VF support

Following is the V6 patch series for adding VF support on
CN23XX devices. This version addressed:
1) Your concern for ordering of local variable declarations
   from longest to shortest line.
2) Removed module parameters max_vfs, num_queues_per_{p,v}f.
3) Minor changes for fixing new checkpatch script related
   errors on pre-existing driver.
4) Fixed compilation issues when CONFIG_PCI_IOV/CONFIG_PCI_ATS
   options are disabled.
5) Modified qualifiers for printing mac addresses with pM format.

I will post remaining VF patches soon after this patchseries is
applied. Please apply patches in the following order as some of
the patches depend on earlier patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/liquidio/Makefile

@@ -11,6 +11,7 @@ liquidio-$(CONFIG_LIQUIDIO) += lio_ethtool.o \
 			cn66xx_device.o    \
 			cn68xx_device.o    \
 			cn23xx_pf_device.o \
+			octeon_mailbox.o   \
 			octeon_mem_ops.o   \
 			octeon_droq.o      \
 			octeon_nic.o

drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file  cn23xx_device.h
  * \brief Host Driver: Routines that perform CN23XX specific operations.
-*/
+ */
 
 #ifndef __CN23XX_PF_DEVICE_H__
 #define __CN23XX_PF_DEVICE_H__
 
 #include "cn23xx_pf_regs.h"
 
+#define LIO_CMD_WAIT_TM 100
+
 /* Register address and configuration for a CN23XX devices.
  * If device specific changes need to be made then add a struct to include
  * device specific fields as shown in the commented section
@@ -56,4 +53,7 @@ u32 cn23xx_pf_get_oq_ticks(struct octeon_device *oct, u32 time_intr_in_us);
 void cn23xx_dump_pf_initialized_regs(struct octeon_device *oct);
 
 int cn23xx_fw_loaded(struct octeon_device *oct);
+
+void cn23xx_tell_vf_its_macaddr_changed(struct octeon_device *oct, int vfidx,
+					u8 *mac);
 #endif

drivers/net/ethernet/cavium/liquidio/cn23xx_pf_regs.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file cn23xx_regs.h
  * \brief Host Driver: Register Address and Register Mask values for
  * Octeon CN23XX devices.
-*/
+ */
 
 #ifndef __CN23XX_PF_REGS_H__
 #define __CN23XX_PF_REGS_H__
@@ -63,7 +58,7 @@
 
 #define     CN23XX_CONFIG_SRIOV_BAR_START	   0x19C
 #define     CN23XX_CONFIG_SRIOV_BARX(i)		\
-		(CN23XX_CONFIG_SRIOV_BAR_START + (i * 4))
+		(CN23XX_CONFIG_SRIOV_BAR_START + ((i) * 4))
 #define     CN23XX_CONFIG_SRIOV_BAR_PF		   0x08
 #define     CN23XX_CONFIG_SRIOV_BAR_64BIT	   0x04
 #define     CN23XX_CONFIG_SRIOV_BAR_IO		   0x01
@@ -513,7 +508,7 @@
 /* 4 Registers (64 - bit) */
 #define    CN23XX_SLI_S2M_PORT_CTL_START         0x23D80
 #define    CN23XX_SLI_S2M_PORTX_CTL(port)	\
-		(CN23XX_SLI_S2M_PORT_CTL_START + (port * 0x10))
+		(CN23XX_SLI_S2M_PORT_CTL_START + ((port) * 0x10))
 
 #define    CN23XX_SLI_MAC_NUMBER                 0x20050
 
@@ -554,26 +549,26 @@
  * Provides DMA Engine Queue Enable
  */
 #define    CN23XX_DPI_DMA_ENG0_ENB        0x0001df0000000080ULL
-#define    CN23XX_DPI_DMA_ENG_ENB(eng) (CN23XX_DPI_DMA_ENG0_ENB + (eng * 8))
+#define    CN23XX_DPI_DMA_ENG_ENB(eng) (CN23XX_DPI_DMA_ENG0_ENB + ((eng) * 8))
 
 /* 8 register (64-bit) - DPI_DMA(0..7)_REQQ_CTL
  * Provides control bits for transaction on 8 Queues
  */
 #define    CN23XX_DPI_DMA_REQQ0_CTL       0x0001df0000000180ULL
 #define    CN23XX_DPI_DMA_REQQ_CTL(q_no)	\
-		(CN23XX_DPI_DMA_REQQ0_CTL + (q_no * 8))
+		(CN23XX_DPI_DMA_REQQ0_CTL + ((q_no) * 8))
 
 /* 6 register (64-bit) - DPI_ENG(0..5)_BUF
  * Provides DMA Engine FIFO (Queue) Size
  */
 #define    CN23XX_DPI_DMA_ENG0_BUF        0x0001df0000000880ULL
 #define    CN23XX_DPI_DMA_ENG_BUF(eng)   \
-		(CN23XX_DPI_DMA_ENG0_BUF + (eng * 8))
+		(CN23XX_DPI_DMA_ENG0_BUF + ((eng) * 8))
 
 /* 4 Registers (64-bit) */
 #define    CN23XX_DPI_SLI_PRT_CFG_START   0x0001df0000000900ULL
 #define    CN23XX_DPI_SLI_PRTX_CFG(port)        \
-		(CN23XX_DPI_SLI_PRT_CFG_START + (port * 0x8))
+		(CN23XX_DPI_SLI_PRT_CFG_START + ((port) * 0x8))
 
 /* Masks for DPI_DMA_CONTROL Register */
 #define    CN23XX_DPI_DMA_COMMIT_MODE     BIT_ULL(58)

drivers/net/ethernet/cavium/liquidio/cn66xx_device.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
 #include "liquidio_common.h"
@@ -275,7 +271,6 @@ void lio_cn6xxx_setup_iq_regs(struct octeon_device *oct, u32 iq_no)
 {
 	struct octeon_instr_queue *iq = oct->instr_queue[iq_no];
 
-	/* Disable Packet-by-Packet mode; No Parse Mode or Skip length */
 	octeon_write_csr64(oct, CN6XXX_SLI_IQ_PKT_INSTR_HDR64(iq_no), 0);
 
 	/* Write the start of the input queue's ring and its size  */
@@ -378,7 +373,7 @@ void lio_cn6xxx_disable_io_queues(struct octeon_device *oct)
 
 	/* Reset the doorbell register for each Input queue. */
 	for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
-		if (!(oct->io_qmask.iq & (1ULL << i)))
+		if (!(oct->io_qmask.iq & BIT_ULL(i)))
 			continue;
 		octeon_write_csr(oct, CN6XXX_SLI_IQ_DOORBELL(i), 0xFFFFFFFF);
 		d32 = octeon_read_csr(oct, CN6XXX_SLI_IQ_DOORBELL(i));
@@ -400,9 +395,8 @@ void lio_cn6xxx_disable_io_queues(struct octeon_device *oct)
 	;
 
 	/* Reset the doorbell register for each Output queue. */
-	/* for (i = 0; i < oct->num_oqs; i++) { */
 	for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
-		if (!(oct->io_qmask.oq & (1ULL << i)))
+		if (!(oct->io_qmask.oq & BIT_ULL(i)))
 			continue;
 		octeon_write_csr(oct, CN6XXX_SLI_OQ_PKTS_CREDIT(i), 0xFFFFFFFF);
 		d32 = octeon_read_csr(oct, CN6XXX_SLI_OQ_PKTS_CREDIT(i));
@@ -537,15 +531,14 @@ static int lio_cn6xxx_process_droq_intr_regs(struct octeon_device *oct)
 
 	oct->droq_intr = 0;
 
-	/* for (oq_no = 0; oq_no < oct->num_oqs; oq_no++) { */
 	for (oq_no = 0; oq_no < MAX_OCTEON_OUTPUT_QUEUES(oct); oq_no++) {
-		if (!(droq_mask & (1ULL << oq_no)))
+		if (!(droq_mask & BIT_ULL(oq_no)))
 			continue;
 
 		droq = oct->droq[oq_no];
 		pkt_count = octeon_droq_check_hw_for_pkts(droq);
 		if (pkt_count) {
-			oct->droq_intr |= (1ULL << oq_no);
+			oct->droq_intr |= BIT_ULL(oq_no);
 			if (droq->ops.poll_mode) {
 				u32 value;
 				u32 reg;
@@ -721,8 +714,6 @@ int lio_setup_cn66xx_octeon_device(struct octeon_device *oct)
 int lio_validate_cn6xxx_config_info(struct octeon_device *oct,
 				    struct octeon_config *conf6xxx)
 {
-	/* int total_instrs = 0; */
-
 	if (CFG_GET_IQ_MAX_Q(conf6xxx) > CN6XXX_MAX_INPUT_QUEUES) {
 		dev_err(&oct->pci_dev->dev, "%s: Num IQ (%d) exceeds Max (%d)\n",
 			__func__, CFG_GET_IQ_MAX_Q(conf6xxx),

drivers/net/ethernet/cavium/liquidio/cn66xx_device.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file  cn66xx_device.h
  *  \brief Host Driver: Routines that perform CN66XX specific operations.
  */
@@ -96,8 +91,8 @@ void lio_cn6xxx_setup_reg_address(struct octeon_device *oct, void *chip,
 				  struct octeon_reg_list *reg_list);
 u32 lio_cn6xxx_coprocessor_clock(struct octeon_device *oct);
 u32 lio_cn6xxx_get_oq_ticks(struct octeon_device *oct, u32 time_intr_in_us);
-int lio_setup_cn66xx_octeon_device(struct octeon_device *);
+int lio_setup_cn66xx_octeon_device(struct octeon_device *oct);
 int lio_validate_cn6xxx_config_info(struct octeon_device *oct,
-				    struct octeon_config *);
+				    struct octeon_config *conf6xxx);
 
 #endif

drivers/net/ethernet/cavium/liquidio/cn66xx_regs.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file cn66xx_regs.h
  *  \brief Host Driver: Register Address and Register Mask values for
  *  Octeon CN66XX devices.
@@ -443,10 +438,10 @@
 #define    CN6XXX_SLI_S2M_PORT0_CTL              0x3D80
 #define    CN6XXX_SLI_S2M_PORT1_CTL              0x3D90
 #define    CN6XXX_SLI_S2M_PORTX_CTL(port)        \
-	(CN6XXX_SLI_S2M_PORT0_CTL + (port * 0x10))
+	(CN6XXX_SLI_S2M_PORT0_CTL + ((port) * 0x10))
 
 #define    CN6XXX_SLI_INT_ENB64(port)            \
-	(CN6XXX_SLI_INT_ENB64_PORT0 + (port * 0x10))
+	(CN6XXX_SLI_INT_ENB64_PORT0 + ((port) * 0x10))
 
 #define    CN6XXX_SLI_MAC_NUMBER                 0x3E00
 
@@ -458,7 +453,7 @@
 #define    CN6XXX_PCI_BAR1_OFFSET                  0x8
 
 #define    CN6XXX_BAR1_REG(idx, port) \
-		(CN6XXX_BAR1_INDEX_START + (port * CN6XXX_PEM_OFFSET) + \
+		(CN6XXX_BAR1_INDEX_START + ((port) * CN6XXX_PEM_OFFSET) + \
 		(CN6XXX_PCI_BAR1_OFFSET * (idx)))
 
 /*############################ DPI #########################*/
@@ -476,17 +471,17 @@
 #define    CN6XXX_DPI_DMA_ENG0_ENB        0x0001df0000000080ULL
 
 #define    CN6XXX_DPI_DMA_ENG_ENB(q_no)   \
-	(CN6XXX_DPI_DMA_ENG0_ENB + (q_no * 8))
+	(CN6XXX_DPI_DMA_ENG0_ENB + ((q_no) * 8))
 
 #define    CN6XXX_DPI_DMA_ENG0_BUF        0x0001df0000000880ULL
 
 #define    CN6XXX_DPI_DMA_ENG_BUF(q_no)   \
-	(CN6XXX_DPI_DMA_ENG0_BUF + (q_no * 8))
+	(CN6XXX_DPI_DMA_ENG0_BUF + ((q_no) * 8))
 
 #define    CN6XXX_DPI_SLI_PRT0_CFG        0x0001df0000000900ULL
 #define    CN6XXX_DPI_SLI_PRT1_CFG        0x0001df0000000908ULL
 #define    CN6XXX_DPI_SLI_PRTX_CFG(port)        \
-	(CN6XXX_DPI_SLI_PRT0_CFG + (port * 0x10))
+	(CN6XXX_DPI_SLI_PRT0_CFG + ((port) * 0x10))
 
 #define    CN6XXX_DPI_DMA_COMMIT_MODE     BIT_ULL(58)
 #define    CN6XXX_DPI_DMA_PKT_HP          BIT_ULL(57)

drivers/net/ethernet/cavium/liquidio/cn68xx_device.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
 #include "liquidio_common.h"
@@ -76,7 +72,7 @@ static void lio_cn68xx_setup_pkt_ctl_regs(struct octeon_device *oct)
 	pktctl = octeon_read_csr64(oct, CN6XXX_SLI_PKT_CTL);
 
 	/* 68XX specific */
-	max_oqs = CFG_GET_OQ_MAX_Q(CHIP_FIELD(oct, cn6xxx, conf));
+	max_oqs = CFG_GET_OQ_MAX_Q(CHIP_CONF(oct, cn6xxx));
 	tx_pipe  = octeon_read_csr64(oct, CN68XX_SLI_TX_PIPE);
 	tx_pipe &= 0xffffffffff00ffffULL; /* clear out NUMP field */
 	tx_pipe |= max_oqs << 16; /* put max_oqs in NUMP field */

drivers/net/ethernet/cavium/liquidio/cn68xx_device.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file  cn68xx_device.h
  *  \brief Host Driver: Routines that perform CN68XX specific operations.
  */

drivers/net/ethernet/cavium/liquidio/cn68xx_regs.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file cn68xx_regs.h
  *  \brief Host Driver: Register Address and Register Mask values for
  *  Octeon CN68XX devices. The register map for CN66XX is the same

drivers/net/ethernet/cavium/liquidio/lio_core.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/pci.h>
 #include <linux/if_vlan.h>
 #include "liquidio_common.h"
@@ -264,3 +260,34 @@ void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr)
 			nctrl->ncmd.s.cmd);
 	}
 }
+
+void octeon_pf_changed_vf_macaddr(struct octeon_device *oct, u8 *mac)
+{
+	bool macaddr_changed = false;
+	struct net_device *netdev;
+	struct lio *lio;
+
+	rtnl_lock();
+
+	netdev = oct->props[0].netdev;
+	lio = GET_LIO(netdev);
+
+	lio->linfo.macaddr_is_admin_asgnd = true;
+
+	if (!ether_addr_equal(netdev->dev_addr, mac)) {
+		macaddr_changed = true;
+		ether_addr_copy(netdev->dev_addr, mac);
+		ether_addr_copy(((u8 *)&lio->linfo.hw_addr) + 2, mac);
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, netdev);
+	}
+
+	rtnl_unlock();
+
+	if (macaddr_changed)
+		dev_info(&oct->pci_dev->dev,
+			 "PF changed VF's MAC address to %pM\n", mac);
+
+	/* no need to notify the firmware of the macaddr change because
+	 * the PF did that already
+	 */
+}

drivers/net/ethernet/cavium/liquidio/lio_ethtool.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/netdevice.h>
 #include <linux/net_tstamp.h>
 #include <linux/pci.h>
@@ -74,7 +70,6 @@ enum {
 	INTERFACE_MODE_MIXED,
 };
 
-#define ARRAY_LENGTH(a) (sizeof(a) / sizeof((a)[0]))
 #define OCT_ETHTOOL_REGDUMP_LEN  4096
 #define OCT_ETHTOOL_REGDUMP_LEN_23XX  (4096 * 11)
 #define OCT_ETHTOOL_REGSVER  1
@@ -87,8 +82,8 @@ static const char oct_stats_strings[][ETH_GSTRING_LEN] = {
 	"tx_bytes",
 	"rx_errors",	/*jabber_err+l2_err+frame_err */
 	"tx_errors",	/*fw_err_pko+fw_err_link+fw_err_drop */
-	"rx_dropped",   /*st->fromwire.total_rcvd - st->fromwire.fw_total_rcvd
-			*+st->fromwire.dmac_drop + st->fromwire.fw_err_drop
+	"rx_dropped",   /*st->fromwire.total_rcvd - st->fromwire.fw_total_rcvd +
+			 *st->fromwire.dmac_drop + st->fromwire.fw_err_drop
 			 */
 	"tx_dropped",
 
@@ -259,14 +254,14 @@ lio_ethtool_get_channels(struct net_device *dev,
 	u32 max_rx = 0, max_tx = 0, tx_count = 0, rx_count = 0;
 
 	if (OCTEON_CN6XXX(oct)) {
-		struct octeon_config *conf6x = CHIP_FIELD(oct, cn6xxx, conf);
+		struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);
 
 		max_rx = CFG_GET_OQ_MAX_Q(conf6x);
 		max_tx = CFG_GET_IQ_MAX_Q(conf6x);
 		rx_count = CFG_GET_NUM_RXQS_NIC_IF(conf6x, lio->ifidx);
 		tx_count = CFG_GET_NUM_TXQS_NIC_IF(conf6x, lio->ifidx);
 	} else if (OCTEON_CN23XX_PF(oct)) {
-		struct octeon_config *conf23 = CHIP_FIELD(oct, cn23xx_pf, conf);
+		struct octeon_config *conf23 = CHIP_CONF(oct, cn23xx_pf);
 
 		max_rx = CFG_GET_OQ_MAX_Q(conf23);
 		max_tx = CFG_GET_IQ_MAX_Q(conf23);
@@ -589,14 +584,14 @@ lio_ethtool_get_ringparam(struct net_device *netdev,
 	    rx_pending = 0;
 
 	if (OCTEON_CN6XXX(oct)) {
-		struct octeon_config *conf6x = CHIP_FIELD(oct, cn6xxx, conf);
+		struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);
 
 		tx_max_pending = CN6XXX_MAX_IQ_DESCRIPTORS;
 		rx_max_pending = CN6XXX_MAX_OQ_DESCRIPTORS;
 		rx_pending = CFG_GET_NUM_RX_DESCS_NIC_IF(conf6x, lio->ifidx);
 		tx_pending = CFG_GET_NUM_TX_DESCS_NIC_IF(conf6x, lio->ifidx);
 	} else if (OCTEON_CN23XX_PF(oct)) {
-		struct octeon_config *conf23 = CHIP_FIELD(oct, cn23xx_pf, conf);
+		struct octeon_config *conf23 = CHIP_CONF(oct, cn23xx_pf);
 
 		tx_max_pending = CN23XX_MAX_IQ_DESCRIPTORS;
 		rx_max_pending = CN23XX_MAX_OQ_DESCRIPTORS;
@@ -757,9 +752,6 @@ lio_get_ethtool_stats(struct net_device *netdev,
 	/*sum of oct->instr_queue[iq_no]->stats.tx_dropped */
 	data[i++] = CVM_CAST64(netstats->tx_dropped);
 
-	/*data[i++] = CVM_CAST64(stats->multicast); */
-	/*data[i++] = CVM_CAST64(stats->collisions); */
-
 	/* firmware tx stats */
 	/*per_core_stats[cvmx_get_core_num()].link_stats[mdata->from_ifidx].
 	 *fromhost.fw_total_sent
@@ -910,9 +902,8 @@ lio_get_ethtool_stats(struct net_device *netdev,
 	/*lio->link_changes*/
 	data[i++] = CVM_CAST64(lio->link_changes);
 
-	/* TX  -- lio_update_stats(lio); */
 	for (j = 0; j < MAX_OCTEON_INSTR_QUEUES(oct_dev); j++) {
-		if (!(oct_dev->io_qmask.iq & (1ULL << j)))
+		if (!(oct_dev->io_qmask.iq & BIT_ULL(j)))
 			continue;
 		/*packets to network port*/
 		/*# of packets tx to network */
@@ -954,9 +945,8 @@ lio_get_ethtool_stats(struct net_device *netdev,
 	}
 
 	/* RX */
-	/* for (j = 0; j < oct_dev->num_oqs; j++) { */
 	for (j = 0; j < MAX_OCTEON_OUTPUT_QUEUES(oct_dev); j++) {
-		if (!(oct_dev->io_qmask.oq & (1ULL << j)))
+		if (!(oct_dev->io_qmask.oq & BIT_ULL(j)))
 			continue;
 
 		/*packets send to TCP/IP network stack */
@@ -1030,7 +1020,7 @@ static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 
 		num_iq_stats = ARRAY_SIZE(oct_iq_stats_strings);
 		for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct_dev); i++) {
-			if (!(oct_dev->io_qmask.iq & (1ULL << i)))
+			if (!(oct_dev->io_qmask.iq & BIT_ULL(i)))
 				continue;
 			for (j = 0; j < num_iq_stats; j++) {
 				sprintf(data, "tx-%d-%s", i,
@@ -1040,9 +1030,8 @@ static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 		}
 
 		num_oq_stats = ARRAY_SIZE(oct_droq_stats_strings);
-		/* for (i = 0; i < oct_dev->num_oqs; i++) { */
 		for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct_dev); i++) {
-			if (!(oct_dev->io_qmask.oq & (1ULL << i)))
+			if (!(oct_dev->io_qmask.oq & BIT_ULL(i)))
 				continue;
 			for (j = 0; j < num_oq_stats; j++) {
 				sprintf(data, "rx-%d-%s", i,

drivers/net/ethernet/cavium/liquidio/liquidio_common.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*!  \file  liquidio_common.h
  *   \brief Common: Structures and macros used in PCI-NIC package by core and
  *   host driver.
@@ -68,12 +63,10 @@ enum octeon_tag_type {
  */
 #define OPCODE_CORE 0           /* used for generic core operations */
 #define OPCODE_NIC  1           /* used for NIC operations */
-#define OPCODE_LAST OPCODE_NIC
-
 /* Subcodes are used by host driver/apps to identify the sub-operation
  * for the core. They only need to by unique for a given subsystem.
  */
-#define OPCODE_SUBCODE(op, sub)       (((op & 0x0f) << 8) | ((sub) & 0x7f))
+#define OPCODE_SUBCODE(op, sub)       ((((op) & 0x0f) << 8) | ((sub) & 0x7f))
 
 /** OPCODE_CORE subcodes. For future use. */
 
@@ -89,13 +82,13 @@ enum octeon_tag_type {
 #define OPCODE_NIC_TIMESTAMP           0x07
 #define OPCODE_NIC_INTRMOD_CFG         0x08
 #define OPCODE_NIC_IF_CFG              0x09
+#define OPCODE_NIC_VF_DRV_NOTICE       0x0A
+#define VF_DRV_LOADED                  1
+#define VF_DRV_REMOVED                -1
+#define VF_DRV_MACADDR_CHANGED         2
 
 #define CORE_DRV_TEST_SCATTER_OP    0xFFF5
 
-#define OPCODE_SLOW_PATH(rh)  \
-	(OPCODE_SUBCODE(rh->r.opcode, rh->r.subcode) != \
-		OPCODE_SUBCODE(OPCODE_NIC, OPCODE_NIC_NW_DATA))
-
 /* Application codes advertised by the core driver initialization packet. */
 #define CVM_DRV_APP_START           0x0
 #define CVM_DRV_NO_APP              0
@@ -105,31 +98,15 @@ enum octeon_tag_type {
 #define CVM_DRV_INVALID_APP         (CVM_DRV_APP_START + 0x2)
 #define CVM_DRV_APP_END             (CVM_DRV_INVALID_APP - 1)
 
-/* Macro to increment index.
- * Index is incremented by count; if the sum exceeds
- * max, index is wrapped-around to the start.
- */
-#define INCR_INDEX(index, count, max)                \
-do {                                                 \
-	if (((index) + (count)) >= (max))            \
-		index = ((index) + (count)) - (max); \
-	else                                         \
-		index += (count);                    \
-} while (0)
-
-#define INCR_INDEX_BY1(index, max)	\
-do {                                    \
-	if ((++(index)) == (max))       \
-		index = 0;	        \
-} while (0)
-
-#define DECR_INDEX(index, count, max)                  \
-do {						       \
-	if ((count) > (index))                         \
-		index = ((max) - ((count - index)));   \
-	else                                           \
-		index -= count;			       \
-} while (0)
+static inline u32 incr_index(u32 index, u32 count, u32 max)
+{
+	if ((index + count) >= max)
+		index = index + count - max;
+	else
+		index += count;
+
+	return index;
+}
 
 #define OCT_BOARD_NAME 32
 #define OCT_SERIAL_LEN 64
@@ -235,6 +212,7 @@ static inline void add_sg_size(struct octeon_sg_entry *sg_entry,
 
 #define   OCTNET_CMD_ID_ACTIVE         0x1a
 
+#define   OCTNET_CMD_SET_VF_LINKSTATE  0x1c
 #define   OCTNET_CMD_VXLAN_PORT_ADD    0x0
 #define   OCTNET_CMD_VXLAN_PORT_DEL    0x1
 #define   OCTNET_CMD_RXCSUM_ENABLE     0x0
@@ -731,13 +709,15 @@ struct oct_link_info {
 
 #ifdef __BIG_ENDIAN_BITFIELD
 	u64 gmxport:16;
-	u64 rsvd:32;
+	u64 macaddr_is_admin_asgnd:1;
+	u64 rsvd:31;
 	u64 num_txpciq:8;
 	u64 num_rxpciq:8;
 #else
 	u64 num_rxpciq:8;
 	u64 num_txpciq:8;
-	u64 rsvd:32;
+	u64 rsvd:31;
+	u64 macaddr_is_admin_asgnd:1;
 	u64 gmxport:16;
 #endif
 
@@ -827,6 +807,16 @@ struct oct_link_stats {
 
 };
 
+static inline int opcode_slow_path(union octeon_rh *rh)
+{
+	u16 subcode1, subcode2;
+
+	subcode1 = OPCODE_SUBCODE((rh)->r.opcode, (rh)->r.subcode);
+	subcode2 = OPCODE_SUBCODE(OPCODE_NIC, OPCODE_NIC_NW_DATA);
+
+	return (subcode2 != subcode1);
+}
+
 #define LIO68XX_LED_CTRL_ADDR     0x3501
 #define LIO68XX_LED_CTRL_CFGON    0x1f
 #define LIO68XX_LED_CTRL_CFGOFF   0x100

drivers/net/ethernet/cavium/liquidio/liquidio_image.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #ifndef _LIQUIDIO_IMAGE_H_
 #define _LIQUIDIO_IMAGE_H_
 

drivers/net/ethernet/cavium/liquidio/octeon_config.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file  octeon_config.h
  *  \brief Host Driver: Configuration data structures for the host driver.
  */
@@ -65,9 +60,15 @@
 #define   DEFAULT_NUM_NIC_PORTS_68XX_210NV  2
 
 /* CN23xx  IQ configuration macros */
+#define   CN23XX_MAX_VFS_PER_PF_PASS_1_0 8
+#define   CN23XX_MAX_VFS_PER_PF_PASS_1_1 31
+#define   CN23XX_MAX_VFS_PER_PF          63
+#define   CN23XX_MAX_RINGS_PER_VF        8
+
 #define   CN23XX_MAX_RINGS_PER_PF_PASS_1_0 12
 #define   CN23XX_MAX_RINGS_PER_PF_PASS_1_1 32
 #define   CN23XX_MAX_RINGS_PER_PF          64
+#define   CN23XX_MAX_RINGS_PER_VF          8
 
 #define   CN23XX_MAX_INPUT_QUEUES	CN23XX_MAX_RINGS_PER_PF
 #define   CN23XX_MAX_IQ_DESCRIPTORS	2048
@@ -466,4 +467,7 @@ struct octeon_config {
 
 #define MAX_POSSIBLE_OCTEON_INSTR_QUEUES	CN23XX_MAX_INPUT_QUEUES
 #define MAX_POSSIBLE_OCTEON_OUTPUT_QUEUES	CN23XX_MAX_OUTPUT_QUEUES
+
+#define MAX_POSSIBLE_VFS			64
+
 #endif /* __OCTEON_CONFIG_H__  */

drivers/net/ethernet/cavium/liquidio/octeon_console.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /**
  * @file octeon_console.c
  */
@@ -76,9 +71,9 @@ MODULE_PARM_DESC(console_bitmask,
 #define OCTEON_CONSOLE_POLL_INTERVAL_MS  100    /* 10 times per second */
 
 /* First three members of cvmx_bootmem_desc are left in original
-** positions for backwards compatibility.
-** Assumes big endian target
-*/
+ * positions for backwards compatibility.
+ * Assumes big endian target
+ */
 struct cvmx_bootmem_desc {
 	/** spinlock to control access to list */
 	u32 lock;
@@ -142,46 +137,6 @@ struct octeon_pci_console_desc {
 	/* Implicit storage for console_addr_array */
 };
 
-/**
- * This macro returns the size of a member of a structure.
- * Logically it is the same as "sizeof(s::field)" in C++, but
- * C lacks the "::" operator.
- */
-#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
-
-/**
- * This macro returns a member of the cvmx_bootmem_desc
- * structure. These members can't be directly addressed as
- * they might be in memory not directly reachable. In the case
- * where bootmem is compiled with LINUX_HOST, the structure
- * itself might be located on a remote Octeon. The argument
- * "field" is the member name of the cvmx_bootmem_desc to read.
- * Regardless of the type of the field, the return type is always
- * a u64.
- */
-#define CVMX_BOOTMEM_DESC_GET_FIELD(oct, field)                              \
-	__cvmx_bootmem_desc_get(oct, oct->bootmem_desc_addr,                 \
-				offsetof(struct cvmx_bootmem_desc, field),   \
-				SIZEOF_FIELD(struct cvmx_bootmem_desc, field))
-
-#define __cvmx_bootmem_lock(flags)	(flags = flags)
-#define __cvmx_bootmem_unlock(flags)	(flags = flags)
-
-/**
- * This macro returns a member of the
- * cvmx_bootmem_named_block_desc structure. These members can't
- * be directly addressed as they might be in memory not directly
- * reachable. In the case where bootmem is compiled with
- * LINUX_HOST, the structure itself might be located on a remote
- * Octeon. The argument "field" is the member name of the
- * cvmx_bootmem_named_block_desc to read. Regardless of the type
- * of the field, the return type is always a u64. The "addr"
- * parameter is the physical address of the structure.
- */
-#define CVMX_BOOTMEM_NAMED_GET_FIELD(oct, addr, field)                   \
-	__cvmx_bootmem_desc_get(oct, addr,                               \
-		offsetof(struct cvmx_bootmem_named_block_desc, field),   \
-		SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
 /**
  * \brief determines if a given console has debug enabled.
  * @param console console to check
@@ -263,10 +218,15 @@ static int __cvmx_bootmem_check_version(struct octeon_device *oct,
 		oct->bootmem_desc_addr =
 			octeon_read_device_mem64(oct,
 						 BOOTLOADER_PCI_READ_DESC_ADDR);
-	major_version =
-		(u32)CVMX_BOOTMEM_DESC_GET_FIELD(oct, major_version);
-	minor_version =
-		(u32)CVMX_BOOTMEM_DESC_GET_FIELD(oct, minor_version);
+	major_version = (u32)__cvmx_bootmem_desc_get(
+			oct, oct->bootmem_desc_addr,
+			offsetof(struct cvmx_bootmem_desc, major_version),
+			FIELD_SIZEOF(struct cvmx_bootmem_desc, major_version));
+	minor_version = (u32)__cvmx_bootmem_desc_get(
+			oct, oct->bootmem_desc_addr,
+			offsetof(struct cvmx_bootmem_desc, minor_version),
+			FIELD_SIZEOF(struct cvmx_bootmem_desc, minor_version));
+
 	dev_dbg(&oct->pci_dev->dev, "%s: major_version=%d\n", __func__,
 		major_version);
 	if ((major_version > 3) ||
@@ -289,10 +249,20 @@ static const struct cvmx_bootmem_named_block_desc
 	u64 named_addr = cvmx_bootmem_phy_named_block_find(oct, name, flags);
 
 	if (named_addr) {
-		desc->base_addr = CVMX_BOOTMEM_NAMED_GET_FIELD(oct, named_addr,
-							       base_addr);
-		desc->size =
-			CVMX_BOOTMEM_NAMED_GET_FIELD(oct, named_addr, size);
+		desc->base_addr = __cvmx_bootmem_desc_get(
+				oct, named_addr,
+				offsetof(struct cvmx_bootmem_named_block_desc,
+					 base_addr),
+				FIELD_SIZEOF(
+					struct cvmx_bootmem_named_block_desc,
+					base_addr));
+		desc->size = __cvmx_bootmem_desc_get(oct, named_addr,
+				offsetof(struct cvmx_bootmem_named_block_desc,
+					 size),
+				FIELD_SIZEOF(
+					struct cvmx_bootmem_named_block_desc,
+					size));
+
 		strncpy(desc->name, name, sizeof(desc->name));
 		desc->name[sizeof(desc->name) - 1] = 0;
 		return &oct->bootmem_named_block_desc;
@@ -307,22 +277,41 @@ static u64 cvmx_bootmem_phy_named_block_find(struct octeon_device *oct,
 {
 	u64 result = 0;
 
-	__cvmx_bootmem_lock(flags);
 	if (!__cvmx_bootmem_check_version(oct, 3)) {
 		u32 i;
-		u64 named_block_array_addr =
-			CVMX_BOOTMEM_DESC_GET_FIELD(oct,
-						    named_block_array_addr);
-		u32 num_blocks = (u32)
-			CVMX_BOOTMEM_DESC_GET_FIELD(oct, nb_num_blocks);
-		u32 name_length = (u32)
-			CVMX_BOOTMEM_DESC_GET_FIELD(oct, named_block_name_len);
+
+		u64 named_block_array_addr = __cvmx_bootmem_desc_get(
+					oct, oct->bootmem_desc_addr,
+					offsetof(struct cvmx_bootmem_desc,
+						 named_block_array_addr),
+					FIELD_SIZEOF(struct cvmx_bootmem_desc,
+						     named_block_array_addr));
+		u32 num_blocks = (u32)__cvmx_bootmem_desc_get(
+					oct, oct->bootmem_desc_addr,
+					offsetof(struct cvmx_bootmem_desc,
+						 nb_num_blocks),
+					FIELD_SIZEOF(struct cvmx_bootmem_desc,
+						     nb_num_blocks));
+
+		u32 name_length = (u32)__cvmx_bootmem_desc_get(
+					oct, oct->bootmem_desc_addr,
+					offsetof(struct cvmx_bootmem_desc,
+						 named_block_name_len),
+					FIELD_SIZEOF(struct cvmx_bootmem_desc,
+						     named_block_name_len));
+
 		u64 named_addr = named_block_array_addr;
 
 		for (i = 0; i < num_blocks; i++) {
-			u64 named_size =
-				CVMX_BOOTMEM_NAMED_GET_FIELD(oct, named_addr,
-							     size);
+			u64 named_size = __cvmx_bootmem_desc_get(
+					oct, named_addr,
+					 offsetof(
+					struct cvmx_bootmem_named_block_desc,
+					size),
+					 FIELD_SIZEOF(
+					struct cvmx_bootmem_named_block_desc,
+					size));
+
 			if (name && named_size) {
 				char *name_tmp =
 					kmalloc(name_length + 1, GFP_KERNEL);
@@ -347,7 +336,6 @@ static u64 cvmx_bootmem_phy_named_block_find(struct octeon_device *oct,
 				sizeof(struct cvmx_bootmem_named_block_desc);
 		}
 	}
-	__cvmx_bootmem_unlock(flags);
 	return result;
 }
 

drivers/net/ethernet/cavium/liquidio/octeon_device.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -520,11 +516,6 @@ static struct octeon_config default_cn23xx_conf = {
 	}
 };
 
-enum {
-	OCTEON_CONFIG_TYPE_DEFAULT = 0,
-	NUM_OCTEON_CONFS,
-};
-
 static struct octeon_config_ptr {
 	u32 conf_type;
 } oct_conf_info[MAX_OCTEON_DEVICES] = {
@@ -649,12 +640,12 @@ void octeon_free_device_mem(struct octeon_device *oct)
 	int i;
 
 	for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
-		if (oct->io_qmask.oq & (1ULL << i))
+		if (oct->io_qmask.oq & BIT_ULL(i))
 			vfree(oct->droq[i]);
 	}
 
 	for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
-		if (oct->io_qmask.iq & (1ULL << i))
+		if (oct->io_qmask.iq & BIT_ULL(i))
 			vfree(oct->instr_queue[i]);
 	}
 
@@ -767,6 +758,7 @@ octeon_allocate_ioq_vector(struct octeon_device  *oct)
 		ioq_vector->oct_dev	= oct;
 		ioq_vector->iq_index	= i;
 		ioq_vector->droq_index	= i;
+		ioq_vector->mbox	= oct->mbox[i];
 
 		cpu_num = i % num_online_cpus();
 		cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask);
@@ -795,10 +787,9 @@ int octeon_setup_instr_queues(struct octeon_device *oct)
 
 	if (OCTEON_CN6XXX(oct))
 		num_descs =
-			CFG_GET_NUM_DEF_TX_DESCS(CHIP_FIELD(oct, cn6xxx, conf));
+			CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx));
 	else if (OCTEON_CN23XX_PF(oct))
-		num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_FIELD(oct, cn23xx_pf,
-								conf));
+		num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf));
 
 	oct->num_iqs = 0;
 
@@ -821,6 +812,7 @@ int octeon_setup_instr_queues(struct octeon_device *oct)
 	if (octeon_init_instr_queue(oct, txpciq, num_descs)) {
 		/* prevent memory leak */
 		vfree(oct->instr_queue[0]);
+		oct->instr_queue[0] = NULL;
 		return 1;
 	}
 
@@ -837,14 +829,12 @@ int octeon_setup_output_queues(struct octeon_device *oct)
 
 	if (OCTEON_CN6XXX(oct)) {
 		num_descs =
-			CFG_GET_NUM_DEF_RX_DESCS(CHIP_FIELD(oct, cn6xxx, conf));
+			CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx));
 		desc_size =
-			CFG_GET_DEF_RX_BUF_SIZE(CHIP_FIELD(oct, cn6xxx, conf));
+			CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx));
 	} else if (OCTEON_CN23XX_PF(oct)) {
-		num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_FIELD(oct, cn23xx_pf,
-								conf));
-		desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_FIELD(oct, cn23xx_pf,
-							       conf));
+		num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf));
+		desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf));
 	}
 	oct->num_oqs = 0;
 	oct->droq[0] = vmalloc_node(sizeof(*oct->droq[0]), numa_node);
@@ -853,8 +843,11 @@ int octeon_setup_output_queues(struct octeon_device *oct)
 	if (!oct->droq[0])
 		return 1;
 
-	if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL))
+	if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) {
+		vfree(oct->droq[oq_no]);
+		oct->droq[oq_no] = NULL;
 		return 1;
+	}
 	oct->num_oqs++;
 
 	return 0;
@@ -1070,10 +1063,10 @@ int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf)
 
 	if (OCTEON_CN6XXX(oct))
 		num_nic_ports =
-			CFG_GET_NUM_NIC_PORTS(CHIP_FIELD(oct, cn6xxx, conf));
+			CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx));
 	else if (OCTEON_CN23XX_PF(oct))
 		num_nic_ports =
-			CFG_GET_NUM_NIC_PORTS(CHIP_FIELD(oct, cn23xx_pf, conf));
+			CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf));
 
 	if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) {
 		dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n",
@@ -1143,7 +1136,7 @@ int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no)
 
 {
 	if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) &&
-	    (oct->io_qmask.iq & (1ULL << q_no)))
+	    (oct->io_qmask.iq & BIT_ULL(q_no)))
 		return oct->instr_queue[q_no]->max_count;
 
 	return -1;
@@ -1152,7 +1145,7 @@ int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no)
 int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no)
 {
 	if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) &&
-	    (oct->io_qmask.oq & (1ULL << q_no)))
+	    (oct->io_qmask.oq & BIT_ULL(q_no)))
 		return oct->droq[q_no]->max_count;
 	return -1;
 }
@@ -1168,10 +1161,10 @@ struct octeon_config *octeon_get_conf(struct octeon_device *oct)
 
 	if (OCTEON_CN6XXX(oct)) {
 		default_oct_conf =
-			(struct octeon_config *)(CHIP_FIELD(oct, cn6xxx, conf));
+			(struct octeon_config *)(CHIP_CONF(oct, cn6xxx));
 	} else if (OCTEON_CN23XX_PF(oct)) {
 		default_oct_conf = (struct octeon_config *)
-			(CHIP_FIELD(oct, cn23xx_pf, conf));
+			(CHIP_CONF(oct, cn23xx_pf));
 	}
 	return default_oct_conf;
 }

drivers/net/ethernet/cavium/liquidio/octeon_device.h

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
-
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file octeon_device.h
  *  \brief Host Driver: This file defines the octeon device structure.
  */
@@ -38,6 +33,7 @@
 #define  OCTEON_CN68XX                0x0091
 #define  OCTEON_CN66XX                0x0092
 #define  OCTEON_CN23XX_PF_VID         0x9702
+#define  OCTEON_CN23XX_VF_VID         0x9712
 
 /**RevisionId for the chips */
 #define  OCTEON_CN23XX_REV_1_0        0x00
@@ -52,7 +48,13 @@ enum octeon_pci_swap_mode {
 	OCTEON_PCI_32BIT_LW_SWAP = 3
 };
 
+enum {
+	OCTEON_CONFIG_TYPE_DEFAULT = 0,
+	NUM_OCTEON_CONFS,
+};
+
 #define  OCTEON_OUTPUT_INTR   (2)
+#define  OCTEON_MBOX_INTR     (4)
 #define  OCTEON_ALL_INTR      0xff
 
 /*---------------   PCI BAR1 index registers -------------*/
@@ -70,19 +72,23 @@ enum octeon_pci_swap_mode {
  *  as it is initialized.
  */
 #define    OCT_DEV_BEGIN_STATE            0x0
-#define    OCT_DEV_PCI_MAP_DONE           0x1
-#define    OCT_DEV_DISPATCH_INIT_DONE     0x2
-#define    OCT_DEV_INSTR_QUEUE_INIT_DONE  0x3
-#define    OCT_DEV_SC_BUFF_POOL_INIT_DONE 0x4
-#define    OCT_DEV_RESP_LIST_INIT_DONE    0x5
-#define    OCT_DEV_DROQ_INIT_DONE         0x6
-#define    OCT_DEV_IO_QUEUES_DONE         0x7
-#define    OCT_DEV_CONSOLE_INIT_DONE      0x8
-#define    OCT_DEV_HOST_OK                0x9
-#define    OCT_DEV_CORE_OK                0xa
-#define    OCT_DEV_RUNNING                0xb
-#define    OCT_DEV_IN_RESET               0xc
-#define    OCT_DEV_STATE_INVALID          0xd
+#define    OCT_DEV_PCI_ENABLE_DONE        0x1
+#define    OCT_DEV_PCI_MAP_DONE           0x2
+#define    OCT_DEV_DISPATCH_INIT_DONE     0x3
+#define    OCT_DEV_INSTR_QUEUE_INIT_DONE  0x4
+#define    OCT_DEV_SC_BUFF_POOL_INIT_DONE 0x5
+#define    OCT_DEV_RESP_LIST_INIT_DONE    0x6
+#define    OCT_DEV_DROQ_INIT_DONE         0x7
+#define    OCT_DEV_MBOX_SETUP_DONE        0x8
+#define    OCT_DEV_MSIX_ALLOC_VECTOR_DONE 0x9
+#define    OCT_DEV_INTR_SET_DONE          0xa
+#define    OCT_DEV_IO_QUEUES_DONE         0xb
+#define    OCT_DEV_CONSOLE_INIT_DONE      0xc
+#define    OCT_DEV_HOST_OK                0xd
+#define    OCT_DEV_CORE_OK                0xe
+#define    OCT_DEV_RUNNING                0xf
+#define    OCT_DEV_IN_RESET               0x10
+#define    OCT_DEV_STATE_INVALID          0x11
 
 #define    OCT_DEV_STATES                 OCT_DEV_STATE_INVALID
 
@@ -208,6 +214,10 @@ struct octeon_fn_list {
 
 	irqreturn_t (*process_interrupt_regs)(void *);
 	u64 (*msix_interrupt_handler)(void *);
+
+	int (*setup_mbox)(struct octeon_device *);
+	int (*free_mbox)(struct octeon_device *);
+
 	int (*soft_reset)(struct octeon_device *);
 	int (*setup_device_regs)(struct octeon_device *);
 	void (*bar1_idx_setup)(struct octeon_device *, u64, u32, int);
@@ -322,14 +332,39 @@ struct octeon_pf_vf_hs_word {
 };
 
 struct octeon_sriov_info {
+	/* Number of rings assigned to VF */
+	u32	rings_per_vf;
+
+	/** Max Number of VF devices that can be enabled. This variable can
+	 *  specified during load time or it will be derived after allocating
+	 *  PF queues. When max_vfs is derived then each VF will get one queue
+	 **/
+	u32	max_vfs;
+
+	/** Number of VF devices enabled using sysfs. */
+	u32	num_vfs_alloced;
+
 	/* Actual rings left for PF device */
 	u32	num_pf_rings;
 
 	/* SRN of PF usable IO queues */
 	u32	pf_srn;
+
 	/* total pf rings */
 	u32	trs;
 
+	u32	sriov_enabled;
+
+	/*lookup table that maps DPI ring number to VF pci_dev struct pointer*/
+	struct pci_dev *dpiring_to_vfpcidev_lut[MAX_POSSIBLE_VFS];
+
+	u64	vf_macaddr[MAX_POSSIBLE_VFS];
+
+	u16	vf_vlantci[MAX_POSSIBLE_VFS];
+
+	int	vf_linkstate[MAX_POSSIBLE_VFS];
+
+	u64	vf_drv_loaded_mask;
 };
 
 struct octeon_ioq_vector {
@@ -337,6 +372,7 @@ struct octeon_ioq_vector {
 	int		        iq_index;
 	int		        droq_index;
 	int			vector;
+	struct octeon_mbox     *mbox;
 	struct cpumask		affinity_mask;
 	u32			ioq_num;
 };
@@ -474,6 +510,9 @@ struct octeon_device {
 
 	int msix_on;
 
+	/** Mail Box details of each octeon queue. */
+	struct octeon_mbox  *mbox[MAX_POSSIBLE_VFS];
+
 	/** IOq information of it's corresponding MSI-X interrupt. */
 	struct octeon_ioq_vector    *ioq_vector;
 
@@ -490,11 +529,14 @@ struct octeon_device {
 
 #define  OCT_DRV_ONLINE 1
 #define  OCT_DRV_OFFLINE 2
-#define  OCTEON_CN6XXX(oct)           ((oct->chip_id == OCTEON_CN66XX) || \
-				       (oct->chip_id == OCTEON_CN68XX))
-#define  OCTEON_CN23XX_PF(oct)        (oct->chip_id == OCTEON_CN23XX_PF_VID)
-#define CHIP_FIELD(oct, TYPE, field)             \
-	(((struct octeon_ ## TYPE  *)(oct->chip))->field)
+#define  OCTEON_CN6XXX(oct)	({					\
+				 typeof(oct) _oct = (oct);		\
+				 ((_oct->chip_id == OCTEON_CN66XX) ||	\
+				  (_oct->chip_id == OCTEON_CN68XX));	})
+#define  OCTEON_CN23XX_PF(oct)        ((oct)->chip_id == OCTEON_CN23XX_PF_VID)
+#define  OCTEON_CN23XX_VF(oct)        ((oct)->chip_id == OCTEON_CN23XX_VF_VID)
+#define CHIP_CONF(oct, TYPE)             \
+	(((struct octeon_ ## TYPE  *)((oct)->chip))->conf)
 
 struct oct_intrmod_cmd {
 	struct octeon_device *oct_dev;
@@ -508,7 +550,7 @@ struct oct_intrmod_cmd {
 void octeon_init_device_list(int conf_type);
 
 /** Free memory for Input and Output queue structures for a octeon device */
-void octeon_free_device_mem(struct octeon_device *);
+void octeon_free_device_mem(struct octeon_device *oct);
 
 /* Look up a free entry in the octeon_device table and allocate resources
  * for the octeon_device structure for an octeon device. Called at init
@@ -606,16 +648,16 @@ void lio_pci_writeq(struct octeon_device *oct, u64 val, u64 addr);
 
 /* Routines for reading and writing CSRs */
 #define   octeon_write_csr(oct_dev, reg_off, value) \
-		writel(value, oct_dev->mmio[0].hw_addr + reg_off)
+		writel(value, (oct_dev)->mmio[0].hw_addr + (reg_off))
 
 #define   octeon_write_csr64(oct_dev, reg_off, val64) \
-		writeq(val64, oct_dev->mmio[0].hw_addr + reg_off)
+		writeq(val64, (oct_dev)->mmio[0].hw_addr + (reg_off))
 
 #define   octeon_read_csr(oct_dev, reg_off)         \
-		readl(oct_dev->mmio[0].hw_addr + reg_off)
+		readl((oct_dev)->mmio[0].hw_addr + (reg_off))
 
 #define   octeon_read_csr64(oct_dev, reg_off)         \
-		readq(oct_dev->mmio[0].hw_addr + reg_off)
+		readq((oct_dev)->mmio[0].hw_addr + (reg_off))
 
 /**
  * Checks if memory access is okay

drivers/net/ethernet/cavium/liquidio/octeon_droq.c

 /**********************************************************************
-* Author: Cavium, Inc.
-*
-* Contact: support@cavium.com
-*          Please include "LiquidIO" in the subject.
-*
-* Copyright (c) 2003-2015 Cavium, Inc.
-*
-* This file is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License, Version 2, as
-* published by the Free Software Foundation.
-*
-* This file is distributed in the hope that it will be useful, but
-* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
-* NONINFRINGEMENT.  See the GNU General Public License for more
-* details.
-*
-* This file may also be available under a different license from Cavium.
-* Contact Cavium, Inc. for more information
-**********************************************************************/
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -33,9 +29,6 @@
 #include "cn66xx_device.h"
 #include "cn23xx_pf_device.h"
 
-#define     CVM_MIN(d1, d2)           (((d1) < (d2)) ? (d1) : (d2))
-#define     CVM_MAX(d1, d2)           (((d1) > (d2)) ? (d1) : (d2))
-
 struct niclist {
 	struct list_head list;
 	void *ptr;
@@ -258,13 +251,13 @@ int octeon_init_droq(struct octeon_device *oct,
 	c_num_descs = num_descs;
 	c_buf_size = desc_size;
 	if (OCTEON_CN6XXX(oct)) {
-		struct octeon_config *conf6x = CHIP_FIELD(oct, cn6xxx, conf);
+		struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);
 
 		c_pkts_per_intr = (u32)CFG_GET_OQ_PKTS_PER_INTR(conf6x);
 		c_refill_threshold =
 			(u32)CFG_GET_OQ_REFILL_THRESHOLD(conf6x);
 	} else if (OCTEON_CN23XX_PF(oct)) {
-		struct octeon_config *conf23 = CHIP_FIELD(oct, cn23xx_pf, conf);
+		struct octeon_config *conf23 = CHIP_CONF(oct, cn23xx_pf);
 
 		c_pkts_per_intr = (u32)CFG_GET_OQ_PKTS_PER_INTR(conf23);
 		c_refill_threshold = (u32)CFG_GET_OQ_REFILL_THRESHOLD(conf23);
@@ -337,7 +330,7 @@ int octeon_init_droq(struct octeon_device *oct,
 	/* For 56xx Pass1, this function won't be called, so no checks. */
 	oct->fn_list.setup_oq_regs(oct, q_no);
 
-	oct->io_qmask.oq |= (1ULL << q_no);
+	oct->io_qmask.oq |= BIT_ULL(q_no);
 
 	return 0;
 
@@ -409,7 +402,7 @@ static inline struct octeon_recv_info *octeon_create_recv_info(
 		recv_pkt->buffer_ptr[i] = droq->recv_buf_list[idx].buffer;
 		droq->recv_buf_list[idx].buffer = NULL;
 
-		INCR_INDEX_BY1(idx, droq->max_count);
+		idx = incr_index(idx, 1, droq->max_count);
 		bytes_left -= droq->buffer_size;
 		i++;
 		buf_cnt--;
@@ -440,14 +433,15 @@ octeon_droq_refill_pullup_descs(struct octeon_droq *droq,
 			droq->recv_buf_list[refill_index].buffer = NULL;
 			desc_ring[refill_index].buffer_ptr = 0;
 			do {
-				INCR_INDEX_BY1(droq->refill_idx,
+				droq->refill_idx = incr_index(droq->refill_idx,
+							      1,
 							      droq->max_count);
 				desc_refilled++;
 				droq->refill_count--;
 			} while (droq->recv_buf_list[droq->refill_idx].
 				 buffer);
 		}
-		INCR_INDEX_BY1(refill_index, droq->max_count);
+		refill_index = incr_index(refill_index, 1, droq->max_count);
 	}                       /* while */
 	return desc_refilled;
 }
@@ -514,7 +508,8 @@ octeon_droq_refill(struct octeon_device *octeon_dev, struct octeon_droq *droq)
 		/* Reset any previous values in the length field. */
 		droq->info_list[droq->refill_idx].length = 0;
 
-		INCR_INDEX_BY1(droq->refill_idx, droq->max_count);
+		droq->refill_idx = incr_index(droq->refill_idx, 1,
+					      droq->max_count);
 		desc_refilled++;
 		droq->refill_count--;
 	}
@@ -599,7 +594,8 @@ static inline void octeon_droq_drop_packets(struct octeon_device *oct,
 			buf_cnt = 1;
 		}
 
-		INCR_INDEX(droq->read_idx, buf_cnt, droq->max_count);
+		droq->read_idx = incr_index(droq->read_idx, buf_cnt,
+					    droq->max_count);
 		droq->refill_count += buf_cnt;
 	}
 }
@@ -639,11 +635,12 @@ octeon_droq_fast_process_packets(struct octeon_device *oct,
 		rh = &info->rh;
 
 		total_len += (u32)info->length;
-		if (OPCODE_SLOW_PATH(rh)) {
+		if (opcode_slow_path(rh)) {
 			u32 buf_cnt;
 
 			buf_cnt = octeon_droq_dispatch_pkt(oct, droq, rh, info);
-			INCR_INDEX(droq->read_idx, buf_cnt, droq->max_count);
+			droq->read_idx = incr_index(droq->read_idx,
+						    buf_cnt, droq->max_count);
 			droq->refill_count += buf_cnt;
 		} else {
 			if (info->length <= droq->buffer_size) {
@@ -657,7 +654,8 @@ octeon_droq_fast_process_packets(struct octeon_device *oct,
 				droq->recv_buf_list[droq->read_idx].buffer =
 					NULL;
 
-				INCR_INDEX_BY1(droq->read_idx, droq->max_count);
+				droq->read_idx = incr_index(droq->read_idx, 1,
+							    droq->max_count);
 				droq->refill_count++;
 			} else {
 				nicbuf = octeon_fast_packet_alloc((u32)
@@ -689,7 +687,8 @@ octeon_droq_fast_process_packets(struct octeon_device *oct,
 					}
 
 					pkt_len += cpy_len;
-					INCR_INDEX_BY1(droq->read_idx,
+					droq->read_idx =
+						incr_index(droq->read_idx, 1,
 							   droq->max_count);
 					droq->refill_count++;
 				}
@@ -804,8 +803,7 @@ octeon_droq_process_poll_pkts(struct octeon_device *oct,
 	while (total_pkts_processed < budget) {
 		octeon_droq_check_hw_for_pkts(droq);
 
-		pkts_available =
-			CVM_MIN((budget - total_pkts_processed),
+		pkts_available = min((budget - total_pkts_processed),
 				     (u32)(atomic_read(&droq->pkts_pending)));
 
 		if (pkts_available == 0)
@@ -988,7 +986,8 @@ int octeon_create_droq(struct octeon_device *oct,
 	if (!droq)
 		droq = vmalloc(sizeof(*droq));
 	if (!droq)
-		goto create_droq_fail;
+		return -1;
+
 	memset(droq, 0, sizeof(struct octeon_droq));
 
 	/*Disable the pkt o/p for this Q  */
@@ -996,7 +995,11 @@ int octeon_create_droq(struct octeon_device *oct,
 	oct->droq[q_no] = droq;
 
 	/* Initialize the Droq */
-	octeon_init_droq(oct, q_no, num_descs, desc_size, app_ctx);
+	if (octeon_init_droq(oct, q_no, num_descs, desc_size, app_ctx)) {
+		vfree(oct->droq[q_no]);
+		oct->droq[q_no] = NULL;
+		return -1;
+	}
 
 	oct->num_oqs++;
 
@@ -1009,8 +1012,4 @@ int octeon_create_droq(struct octeon_device *oct,
 	 * the same time.
 	 */
 	return 0;
-
-create_droq_fail:
-	octeon_delete_droq(oct, q_no);
-	return -ENOMEM;
 }

drivers/net/ethernet/cavium/liquidio/octeon_droq.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -13,13 +13,8 @@
  * This file is distributed in the hope that it will be useful, but
  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
- * NONINFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
- **********************************************************************/
-
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*!  \file  octeon_droq.h
  *   \brief Implementation of Octeon Output queues. "Output" is with
  *   respect to the Octeon device on the NIC. From this driver's point of
@@ -81,7 +76,7 @@ struct octeon_skb_page_info {
  *  the Octeon device. Since the descriptor ring keeps physical (bus)
  *  addresses, this field is required for the driver to keep track of
  *  the virtual address pointers.
-*/
+ */
 struct octeon_recv_buffer {
 	/** Packet buffer, including metadata. */
 	void *buffer;
@@ -121,7 +116,6 @@ struct oct_droq_stats {
 	/** Num of Packets dropped due to receive path failures. */
 	u64 rx_dropped;
 
-	/** Num of vxlan packets received; */
 	u64 rx_vxlan;
 
 	/** Num of failures of recv_buffer_alloc() */
@@ -359,7 +353,7 @@ struct octeon_droq {
  * @param  q_no       - droq no. ranges from 0 - 3.
  * @param app_ctx     - pointer to application context
  * @return Success: 0    Failure: 1
-*/
+ */
 int octeon_init_droq(struct octeon_device *oct_dev,
 		     u32 q_no,
 		     u32 num_descs,
@@ -372,7 +366,7 @@ int octeon_init_droq(struct octeon_device *oct_dev,
  *  @param oct_dev - pointer to the octeon device structure
  *  @param q_no    - droq no. ranges from 0 - 3.
  *  @return:    Success: 0    Failure: 1
-*/
+ */
 int octeon_delete_droq(struct octeon_device *oct_dev, u32 q_no);
 
 /** Register a change in droq operations. The ops field has a pointer to a

drivers/net/ethernet/cavium/liquidio/octeon_iq.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -13,13 +13,8 @@
  * This file is distributed in the hope that it will be useful, but
  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
- * NONINFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
- **********************************************************************/
-
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*!  \file  octeon_iq.h
  *   \brief Host Driver: Implementation of Octeon input queues. "Input" is
  *   with respect to the Octeon device on the NIC. From this driver's
@@ -69,7 +64,6 @@ struct oct_iq_stats {
 	u64 tx_vxlan; /* tunnel */
 	u64 tx_dmamap_fail;
 	u64 tx_restart;
-	/*u64 tx_timeout_count;*/
 };
 
 #define OCT_IQ_STATS_SIZE   (sizeof(struct oct_iq_stats))
@@ -78,7 +72,7 @@ struct oct_iq_stats {
  *  The input queue is used to post raw (instruction) mode data or packet
  *  data to Octeon device from the host. Each input queue (upto 4) for
  *  a Octeon device has one such structure to represent it.
-*/
+ */
 struct octeon_instr_queue {
 	struct octeon_device *oct_dev;
 
@@ -309,6 +303,9 @@ struct octeon_sc_buffer_pool {
 	atomic_t alloc_buf_count;
 };
 
+#define INCR_INSTRQUEUE_PKT_COUNT(octeon_dev_ptr, iq_no, field, count)  \
+		(((octeon_dev_ptr)->instr_queue[iq_no]->stats.field) += count)
+
 int octeon_setup_sc_buffer_pool(struct octeon_device *oct);
 int octeon_free_sc_buffer_pool(struct octeon_device *oct);
 struct octeon_soft_command *

drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c

+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include "liquidio_common.h"
+#include "octeon_droq.h"
+#include "octeon_iq.h"
+#include "response_manager.h"
+#include "octeon_device.h"
+#include "octeon_main.h"
+#include "octeon_mailbox.h"
+
+/**
+ * octeon_mbox_read:
+ * @oct: Pointer mailbox
+ *
+ * Reads the 8-bytes of data from the mbox register
+ * Writes back the acknowldgement inidcating completion of read
+ */
+int octeon_mbox_read(struct octeon_mbox *mbox)
+{
+	union octeon_mbox_message msg;
+	int ret = 0;
+
+	spin_lock(&mbox->lock);
+
+	msg.u64 = readq(mbox->mbox_read_reg);
+
+	if ((msg.u64 == OCTEON_PFVFACK) || (msg.u64 == OCTEON_PFVFSIG)) {
+		spin_unlock(&mbox->lock);
+		return 0;
+	}
+
+	if (mbox->state & OCTEON_MBOX_STATE_REQUEST_RECEIVING) {
+		mbox->mbox_req.data[mbox->mbox_req.recv_len - 1] = msg.u64;
+		mbox->mbox_req.recv_len++;
+	} else {
+		if (mbox->state & OCTEON_MBOX_STATE_RESPONSE_RECEIVING) {
+			mbox->mbox_resp.data[mbox->mbox_resp.recv_len - 1] =
+				msg.u64;
+			mbox->mbox_resp.recv_len++;
+		} else {
+			if ((mbox->state & OCTEON_MBOX_STATE_IDLE) &&
+			    (msg.s.type == OCTEON_MBOX_REQUEST)) {
+				mbox->state &= ~OCTEON_MBOX_STATE_IDLE;
+				mbox->state |=
+				    OCTEON_MBOX_STATE_REQUEST_RECEIVING;
+				mbox->mbox_req.msg.u64 = msg.u64;
+				mbox->mbox_req.q_no = mbox->q_no;
+				mbox->mbox_req.recv_len = 1;
+			} else {
+				if ((mbox->state &
+				     OCTEON_MBOX_STATE_RESPONSE_PENDING) &&
+				    (msg.s.type == OCTEON_MBOX_RESPONSE)) {
+					mbox->state &=
+					    ~OCTEON_MBOX_STATE_RESPONSE_PENDING;
+					mbox->state |=
+					    OCTEON_MBOX_STATE_RESPONSE_RECEIVING
+					    ;
+					mbox->mbox_resp.msg.u64 = msg.u64;
+					mbox->mbox_resp.q_no = mbox->q_no;
+					mbox->mbox_resp.recv_len = 1;
+				} else {
+					writeq(OCTEON_PFVFERR,
+					       mbox->mbox_read_reg);
+					mbox->state |= OCTEON_MBOX_STATE_ERROR;
+					spin_unlock(&mbox->lock);
+					return 1;
+				}
+			}
+		}
+	}
+
+	if (mbox->state & OCTEON_MBOX_STATE_REQUEST_RECEIVING) {
+		if (mbox->mbox_req.recv_len < msg.s.len) {
+			ret = 0;
+		} else {
+			mbox->state &= ~OCTEON_MBOX_STATE_REQUEST_RECEIVING;
+			mbox->state |= OCTEON_MBOX_STATE_REQUEST_RECEIVED;
+			ret = 1;
+		}
+	} else {
+		if (mbox->state & OCTEON_MBOX_STATE_RESPONSE_RECEIVING) {
+			if (mbox->mbox_resp.recv_len < msg.s.len) {
+				ret = 0;
+			} else {
+				mbox->state &=
+				    ~OCTEON_MBOX_STATE_RESPONSE_RECEIVING;
+				mbox->state |=
+				    OCTEON_MBOX_STATE_RESPONSE_RECEIVED;
+				ret = 1;
+			}
+		} else {
+			WARN_ON(1);
+		}
+	}
+
+	writeq(OCTEON_PFVFACK, mbox->mbox_read_reg);
+
+	spin_unlock(&mbox->lock);
+
+	return ret;
+}
+
+/**
+ * octeon_mbox_write:
+ * @oct: Pointer Octeon Device
+ * @mbox_cmd: Cmd to send to mailbox.
+ *
+ * Populates the queue specific mbox structure
+ * with cmd information.
+ * Write the cmd to mbox register
+ */
+int octeon_mbox_write(struct octeon_device *oct,
+		      struct octeon_mbox_cmd *mbox_cmd)
+{
+	struct octeon_mbox *mbox = oct->mbox[mbox_cmd->q_no];
+	u32 count, i, ret = OCTEON_MBOX_STATUS_SUCCESS;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mbox->lock, flags);
+
+	if ((mbox_cmd->msg.s.type == OCTEON_MBOX_RESPONSE) &&
+	    !(mbox->state & OCTEON_MBOX_STATE_REQUEST_RECEIVED)) {
+		spin_unlock_irqrestore(&mbox->lock, flags);
+		return OCTEON_MBOX_STATUS_FAILED;
+	}
+
+	if ((mbox_cmd->msg.s.type == OCTEON_MBOX_REQUEST) &&
+	    !(mbox->state & OCTEON_MBOX_STATE_IDLE)) {
+		spin_unlock_irqrestore(&mbox->lock, flags);
+		return OCTEON_MBOX_STATUS_BUSY;
+	}
+
+	if (mbox_cmd->msg.s.type == OCTEON_MBOX_REQUEST) {
+		memcpy(&mbox->mbox_resp, mbox_cmd,
+		       sizeof(struct octeon_mbox_cmd));
+		mbox->state = OCTEON_MBOX_STATE_RESPONSE_PENDING;
+	}
+
+	spin_unlock_irqrestore(&mbox->lock, flags);
+
+	count = 0;
+
+	while (readq(mbox->mbox_write_reg) != OCTEON_PFVFSIG) {
+		schedule_timeout_uninterruptible(LIO_MBOX_WRITE_WAIT_TIME);
+		if (count++ == LIO_MBOX_WRITE_WAIT_CNT) {
+			ret = OCTEON_MBOX_STATUS_FAILED;
+			break;
+		}
+	}
+
+	if (ret == OCTEON_MBOX_STATUS_SUCCESS) {
+		writeq(mbox_cmd->msg.u64, mbox->mbox_write_reg);
+		for (i = 0; i < (u32)(mbox_cmd->msg.s.len - 1); i++) {
+			count = 0;
+			while (readq(mbox->mbox_write_reg) !=
+			       OCTEON_PFVFACK) {
+				schedule_timeout_uninterruptible(10);
+				if (count++ == LIO_MBOX_WRITE_WAIT_CNT) {
+					ret = OCTEON_MBOX_STATUS_FAILED;
+					break;
+				}
+			}
+			writeq(mbox_cmd->data[i], mbox->mbox_write_reg);
+		}
+	}
+
+	spin_lock_irqsave(&mbox->lock, flags);
+	if (mbox_cmd->msg.s.type == OCTEON_MBOX_RESPONSE) {
+		mbox->state = OCTEON_MBOX_STATE_IDLE;
+		writeq(OCTEON_PFVFSIG, mbox->mbox_read_reg);
+	} else {
+		if ((!mbox_cmd->msg.s.resp_needed) ||
+		    (ret == OCTEON_MBOX_STATUS_FAILED)) {
+			mbox->state &= ~OCTEON_MBOX_STATE_RESPONSE_PENDING;
+			if (!(mbox->state &
+			      (OCTEON_MBOX_STATE_REQUEST_RECEIVING |
+			       OCTEON_MBOX_STATE_REQUEST_RECEIVED)))
+				mbox->state = OCTEON_MBOX_STATE_IDLE;
+		}
+	}
+	spin_unlock_irqrestore(&mbox->lock, flags);
+
+	return ret;
+}
+
+/**
+ * octeon_mbox_process_cmd:
+ * @mbox: Pointer mailbox
+ * @mbox_cmd: Pointer to command received
+ *
+ * Process the cmd received in mbox
+ */
+static int octeon_mbox_process_cmd(struct octeon_mbox *mbox,
+				   struct octeon_mbox_cmd *mbox_cmd)
+{
+	struct octeon_device *oct = mbox->oct_dev;
+
+	switch (mbox_cmd->msg.s.cmd) {
+	case OCTEON_VF_ACTIVE:
+		dev_dbg(&oct->pci_dev->dev, "got vfactive sending data back\n");
+		mbox_cmd->msg.s.type = OCTEON_MBOX_RESPONSE;
+		mbox_cmd->msg.s.resp_needed = 1;
+		mbox_cmd->msg.s.len = 2;
+		mbox_cmd->data[0] = 0; /* VF version is in mbox_cmd->data[0] */
+		((struct lio_version *)&mbox_cmd->data[0])->major =
+			LIQUIDIO_BASE_MAJOR_VERSION;
+		((struct lio_version *)&mbox_cmd->data[0])->minor =
+			LIQUIDIO_BASE_MINOR_VERSION;
+		((struct lio_version *)&mbox_cmd->data[0])->micro =
+			LIQUIDIO_BASE_MICRO_VERSION;
+		memcpy(mbox_cmd->msg.s.params, (uint8_t *)&oct->pfvf_hsword, 6);
+		/* Sending core cofig info to the corresponding active VF.*/
+		octeon_mbox_write(oct, mbox_cmd);
+		break;
+
+	case OCTEON_VF_FLR_REQUEST:
+		dev_info(&oct->pci_dev->dev,
+			 "got a request for FLR from VF that owns DPI ring %u\n",
+			 mbox->q_no);
+		pcie_capability_set_word(
+			oct->sriov_info.dpiring_to_vfpcidev_lut[mbox->q_no],
+			PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
+		break;
+
+	case OCTEON_PF_CHANGED_VF_MACADDR:
+		if (OCTEON_CN23XX_VF(oct))
+			octeon_pf_changed_vf_macaddr(oct,
+						     mbox_cmd->msg.s.params);
+		break;
+
+	default:
+		break;
+	}
+	return 0;
+}
+
+/**
+ *octeon_mbox_process_message:
+ *
+ * Process the received mbox message.
+ */
+int octeon_mbox_process_message(struct octeon_mbox *mbox)
+{
+	struct octeon_mbox_cmd mbox_cmd;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mbox->lock, flags);
+
+	if (mbox->state & OCTEON_MBOX_STATE_ERROR) {
+		if (mbox->state & (OCTEON_MBOX_STATE_RESPONSE_PENDING |
+				   OCTEON_MBOX_STATE_RESPONSE_RECEIVING)) {
+			memcpy(&mbox_cmd, &mbox->mbox_resp,
+			       sizeof(struct octeon_mbox_cmd));
+			mbox->state = OCTEON_MBOX_STATE_IDLE;
+			writeq(OCTEON_PFVFSIG, mbox->mbox_read_reg);
+			spin_unlock_irqrestore(&mbox->lock, flags);
+			mbox_cmd.recv_status = 1;
+			if (mbox_cmd.fn)
+				mbox_cmd.fn(mbox->oct_dev, &mbox_cmd,
+					    mbox_cmd.fn_arg);
+			return 0;
+		}
+
+		mbox->state = OCTEON_MBOX_STATE_IDLE;
+		writeq(OCTEON_PFVFSIG, mbox->mbox_read_reg);
+		spin_unlock_irqrestore(&mbox->lock, flags);
+		return 0;
+	}
+
+	if (mbox->state & OCTEON_MBOX_STATE_RESPONSE_RECEIVED) {
+		memcpy(&mbox_cmd, &mbox->mbox_resp,
+		       sizeof(struct octeon_mbox_cmd));
+		mbox->state = OCTEON_MBOX_STATE_IDLE;
+		writeq(OCTEON_PFVFSIG, mbox->mbox_read_reg);
+		spin_unlock_irqrestore(&mbox->lock, flags);
+		mbox_cmd.recv_status = 0;
+		if (mbox_cmd.fn)
+			mbox_cmd.fn(mbox->oct_dev, &mbox_cmd, mbox_cmd.fn_arg);
+		return 0;
+	}
+
+	if (mbox->state & OCTEON_MBOX_STATE_REQUEST_RECEIVED) {
+		memcpy(&mbox_cmd, &mbox->mbox_req,
+		       sizeof(struct octeon_mbox_cmd));
+		if (!mbox_cmd.msg.s.resp_needed) {
+			mbox->state &= ~OCTEON_MBOX_STATE_REQUEST_RECEIVED;
+			if (!(mbox->state &&
+			      OCTEON_MBOX_STATE_RESPONSE_PENDING))
+				mbox->state = OCTEON_MBOX_STATE_IDLE;
+			writeq(OCTEON_PFVFSIG, mbox->mbox_read_reg);
+		}
+
+		spin_unlock_irqrestore(&mbox->lock, flags);
+		octeon_mbox_process_cmd(mbox, &mbox_cmd);
+		return 0;
+	}
+
+	WARN_ON(1);
+
+	return 0;
+}

drivers/net/ethernet/cavium/liquidio/octeon_mailbox.h

+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@cavium.com
+ *          Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
+#ifndef __MAILBOX_H__
+#define __MAILBOX_H__
+
+/* Macros for Mail Box Communication */
+
+#define OCTEON_MBOX_DATA_MAX	32
+
+#define OCTEON_VF_ACTIVE		0x1
+#define OCTEON_VF_FLR_REQUEST		0x2
+#define OCTEON_PF_CHANGED_VF_MACADDR	0x4
+
+/*Macro for Read acknowldgement*/
+#define OCTEON_PFVFACK			0xffffffffffffffff
+#define OCTEON_PFVFSIG			0x1122334455667788
+#define OCTEON_PFVFERR			0xDEADDEADDEADDEAD
+
+#define LIO_MBOX_WRITE_WAIT_CNT          1000
+#define LIO_MBOX_WRITE_WAIT_TIME           10
+
+enum octeon_mbox_cmd_status {
+	OCTEON_MBOX_STATUS_SUCCESS = 0,
+	OCTEON_MBOX_STATUS_FAILED = 1,
+	OCTEON_MBOX_STATUS_BUSY = 2
+};
+
+enum octeon_mbox_message_type {
+	OCTEON_MBOX_REQUEST = 0,
+	OCTEON_MBOX_RESPONSE = 1
+};
+
+union octeon_mbox_message {
+	u64 u64;
+	struct {
+		u16 type : 1;
+		u16 resp_needed : 1;
+		u16 cmd : 6;
+		u16 len : 8;
+		u8 params[6];
+	} s;
+};
+
+typedef void (*octeon_mbox_callback_t)(void *, void *, void *);
+
+struct octeon_mbox_cmd {
+	union octeon_mbox_message msg;
+	u64 data[OCTEON_MBOX_DATA_MAX];
+	u32 q_no;
+	u32 recv_len;
+	u32 recv_status;
+	octeon_mbox_callback_t fn;
+	void *fn_arg;
+};
+
+enum octeon_mbox_state {
+	OCTEON_MBOX_STATE_IDLE = 1,
+	OCTEON_MBOX_STATE_REQUEST_RECEIVING = 2,
+	OCTEON_MBOX_STATE_REQUEST_RECEIVED = 4,
+	OCTEON_MBOX_STATE_RESPONSE_PENDING = 8,
+	OCTEON_MBOX_STATE_RESPONSE_RECEIVING = 16,
+	OCTEON_MBOX_STATE_RESPONSE_RECEIVED = 16,
+	OCTEON_MBOX_STATE_ERROR = 32
+};
+
+struct octeon_mbox {
+	/** A spinlock to protect access to this q_mbox. */
+	spinlock_t lock;
+
+	struct octeon_device *oct_dev;
+
+	u32 q_no;
+
+	enum octeon_mbox_state state;
+
+	struct cavium_wk mbox_poll_wk;
+
+	/** SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
+	void *mbox_int_reg;
+
+	/** SLI_PKT_PF_VF_MBOX_SIG(0) for PF, SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
+	 */
+	void *mbox_write_reg;
+
+	/** SLI_PKT_PF_VF_MBOX_SIG(1) for PF, SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
+	 */
+	void *mbox_read_reg;
+
+	struct octeon_mbox_cmd mbox_req;
+
+	struct octeon_mbox_cmd mbox_resp;
+
+};
+
+int octeon_mbox_read(struct octeon_mbox *mbox);
+int octeon_mbox_write(struct octeon_device *oct,
+		      struct octeon_mbox_cmd *mbox_cmd);
+int octeon_mbox_process_message(struct octeon_mbox *mbox);
+
+#endif

drivers/net/ethernet/cavium/liquidio/octeon_main.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -13,13 +13,8 @@
  * This file is distributed in the hope that it will be useful, but
  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
- * NONINFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
- **********************************************************************/
-
+ * NONINFRINGEMENT.  See the GNU General Public License for more details.
+ ***********************************************************************/
 /*! \file octeon_main.h
  *  \brief Host Driver: This file is included by all host driver source files
  *  to include common definitions.
@@ -66,7 +61,7 @@ void octeon_update_tx_completion_counters(void *buf, int reqtype,
 					  unsigned int *bytes_compl);
 void octeon_report_tx_completion_to_bql(void *txq, unsigned int pkts_compl,
 					unsigned int bytes_compl);
-
+void octeon_pf_changed_vf_macaddr(struct octeon_device *oct, u8 *mac);
 /** Swap 8B blocks */
 static inline void octeon_swap_8B_data(u64 *data, u32 blocks)
 {
@@ -116,7 +111,7 @@ static inline int octeon_map_pci_barx(struct octeon_device *oct,
 
 	mapped_len = oct->mmio[baridx].len;
 	if (!mapped_len)
-		return 1;
+		goto err_release_region;
 
 	if (max_map_len && (mapped_len > max_map_len))
 		mapped_len = max_map_len;
@@ -132,11 +127,15 @@ static inline int octeon_map_pci_barx(struct octeon_device *oct,
 	if (!oct->mmio[baridx].hw_addr) {
 		dev_err(&oct->pci_dev->dev, "error ioremap for bar %d\n",
 			baridx);
-		return 1;
+		goto err_release_region;
 	}
 	oct->mmio[baridx].done = 1;
 
 	return 0;
+
+err_release_region:
+	pci_release_region(oct->pci_dev, baridx * 2);
+	return 1;
 }
 
 static inline void *
@@ -203,24 +202,6 @@ sleep_cond(wait_queue_head_t *wait_queue, int *condition)
 	return errno;
 }
 
-static inline void
-sleep_atomic_cond(wait_queue_head_t *waitq, atomic_t *pcond)
-{
-	wait_queue_t we;
-
-	init_waitqueue_entry(&we, current);
-	add_wait_queue(waitq, &we);
-	while (!atomic_read(pcond)) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (signal_pending(current))
-			goto out;
-		schedule();
-	}
-out:
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(waitq, &we);
-}
-
 /* Gives up the CPU for a timeout period.
  * Check that the condition is not true before we go to sleep for a
  * timeout period.

drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 #include <linux/netdevice.h>
 #include "liquidio_common.h"
@@ -39,7 +36,7 @@ octeon_toggle_bar1_swapmode(struct octeon_device *oct, u32 idx)
 	oct->fn_list.bar1_idx_write(oct, idx, mask);
 }
 #else
-#define octeon_toggle_bar1_swapmode(oct, idx) (oct = oct)
+#define octeon_toggle_bar1_swapmode(oct, idx)
 #endif
 
 static void

drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 
 /*!  \file octeon_mem_ops.h

drivers/net/ethernet/cavium/liquidio/octeon_network.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 
 /*!  \file  octeon_network.h
@@ -131,7 +128,7 @@ struct lio {
 #define LIO_SIZE         (sizeof(struct lio))
 #define GET_LIO(netdev)  ((struct lio *)netdev_priv(netdev))
 
-#define CIU3_WDOG(c)                 (0x1010000020000ULL + (c << 3))
+#define CIU3_WDOG(c)                 (0x1010000020000ULL + ((c) << 3))
 #define CIU3_WDOG_MASK               12ULL
 #define LIO_MONITOR_WDOG_EXPIRE      1
 #define LIO_MONITOR_CORE_STUCK_MSGD  2
@@ -342,9 +339,9 @@ static inline void tx_buffer_free(void *buffer)
 }
 
 #define lio_dma_alloc(oct, size, dma_addr) \
-	dma_alloc_coherent(&oct->pci_dev->dev, size, dma_addr, GFP_KERNEL)
+	dma_alloc_coherent(&(oct)->pci_dev->dev, size, dma_addr, GFP_KERNEL)
 #define lio_dma_free(oct, size, virt_addr, dma_addr) \
-	dma_free_coherent(&oct->pci_dev->dev, size, virt_addr, dma_addr)
+	dma_free_coherent(&(oct)->pci_dev->dev, size, virt_addr, dma_addr)
 
 static inline
 void *get_rbd(struct sk_buff *skb)

drivers/net/ethernet/cavium/liquidio/octeon_nic.c

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>

drivers/net/ethernet/cavium/liquidio/octeon_nic.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 
 /*!  \file octeon_nic.h
@@ -67,7 +64,7 @@ struct octnic_ctrl_pkt {
 	octnic_ctrl_pkt_cb_fn_t cb_fn;
 };
 
-#define MAX_UDD_SIZE(nctrl) (sizeof(nctrl->udd))
+#define MAX_UDD_SIZE(nctrl) (sizeof((nctrl)->udd))
 
 /** Structure of data information passed by the NIC module to the OSI
  * layer when forwarding data to Octeon device software.

drivers/net/ethernet/cavium/liquidio/request_manager.c

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
@@ -32,9 +29,6 @@
 #include "cn66xx_device.h"
 #include "cn23xx_pf_device.h"
 
-#define INCR_INSTRQUEUE_PKT_COUNT(octeon_dev_ptr, iq_no, field, count)  \
-	(octeon_dev_ptr->instr_queue[iq_no]->stats.field += count)
-
 struct iq_post_status {
 	int status;
 	int index;
@@ -71,9 +65,9 @@ int octeon_init_instr_queue(struct octeon_device *oct,
 	int numa_node = cpu_to_node(iq_no % num_online_cpus());
 
 	if (OCTEON_CN6XXX(oct))
-		conf = &(CFG_GET_IQ_CFG(CHIP_FIELD(oct, cn6xxx, conf)));
+		conf = &(CFG_GET_IQ_CFG(CHIP_CONF(oct, cn6xxx)));
 	else if (OCTEON_CN23XX_PF(oct))
-		conf = &(CFG_GET_IQ_CFG(CHIP_FIELD(oct, cn23xx_pf, conf)));
+		conf = &(CFG_GET_IQ_CFG(CHIP_CONF(oct, cn23xx_pf)));
 	if (!conf) {
 		dev_err(&oct->pci_dev->dev, "Unsupported Chip %x\n",
 			oct->chip_id);
@@ -145,7 +139,7 @@ int octeon_init_instr_queue(struct octeon_device *oct,
 
 	spin_lock_init(&iq->iq_flush_running_lock);
 
-	oct->io_qmask.iq |= (1ULL << iq_no);
+	oct->io_qmask.iq |= BIT_ULL(iq_no);
 
 	/* Set the 32B/64B mode for each input queue */
 	oct->io_qmask.iq64B |= ((conf->instr_type == 64) << iq_no);
@@ -157,6 +151,8 @@ int octeon_init_instr_queue(struct octeon_device *oct,
 						     WQ_MEM_RECLAIM,
 						     0);
 	if (!oct->check_db_wq[iq_no].wq) {
+		vfree(iq->request_list);
+		iq->request_list = NULL;
 		lio_dma_free(oct, q_size, iq->base_addr, iq->base_addr_dma);
 		dev_err(&oct->pci_dev->dev, "check db wq create failed for iq %d\n",
 			iq_no);
@@ -183,10 +179,10 @@ int octeon_delete_instr_queue(struct octeon_device *oct, u32 iq_no)
 
 	if (OCTEON_CN6XXX(oct))
 		desc_size =
-		    CFG_GET_IQ_INSTR_TYPE(CHIP_FIELD(oct, cn6xxx, conf));
+		    CFG_GET_IQ_INSTR_TYPE(CHIP_CONF(oct, cn6xxx));
 	else if (OCTEON_CN23XX_PF(oct))
 		desc_size =
-		    CFG_GET_IQ_INSTR_TYPE(CHIP_FIELD(oct, cn23xx_pf, conf));
+		    CFG_GET_IQ_INSTR_TYPE(CHIP_CONF(oct, cn23xx_pf));
 
 	vfree(iq->request_list);
 
@@ -250,9 +246,8 @@ int lio_wait_for_instr_fetch(struct octeon_device *oct)
 	do {
 		instr_cnt = 0;
 
-		/*for (i = 0; i < oct->num_iqs; i++) {*/
 		for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
-			if (!(oct->io_qmask.iq & (1ULL << i)))
+			if (!(oct->io_qmask.iq & BIT_ULL(i)))
 				continue;
 			pending =
 			    atomic_read(&oct->
@@ -319,7 +314,8 @@ __post_command2(struct octeon_instr_queue *iq, u8 *cmd)
 
 	/* "index" is returned, host_write_index is modified. */
 	st.index = iq->host_write_index;
-	INCR_INDEX_BY1(iq->host_write_index, iq->max_count);
+	iq->host_write_index = incr_index(iq->host_write_index, 1,
+					  iq->max_count);
 	iq->fill_cnt++;
 
 	/* Flush the command into memory. We need to be sure the data is in
@@ -434,7 +430,7 @@ lio_process_iq_request_list(struct octeon_device *oct,
 
  skip_this:
 		inst_count++;
-		INCR_INDEX_BY1(old, iq->max_count);
+		old = incr_index(old, 1, iq->max_count);
 
 		if ((napi_budget) && (inst_count >= napi_budget))
 			break;
@@ -577,8 +573,6 @@ octeon_send_command(struct octeon_device *oct, u32 iq_no,
 	/* This is only done here to expedite packets being flushed
 	 * for cases where there are no IQ completion interrupts.
 	 */
-	/*if (iq->do_auto_flush)*/
-	/*	octeon_flush_iq(oct, iq, 2, 0);*/
 
 	return st.status;
 }
@@ -749,8 +743,10 @@ int octeon_setup_sc_buffer_pool(struct octeon_device *oct)
 			lio_dma_alloc(oct,
 				      SOFT_COMMAND_BUFFER_SIZE,
 					  (dma_addr_t *)&dma_addr);
-		if (!sc)
+		if (!sc) {
+			octeon_free_sc_buffer_pool(oct);
 			return 1;
+		}
 
 		sc->dma_addr = dma_addr;
 		sc->size = SOFT_COMMAND_BUFFER_SIZE;

drivers/net/ethernet/cavium/liquidio/response_manager.c

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 #include <linux/pci.h>
 #include <linux/netdevice.h>
@@ -81,11 +78,7 @@ int lio_process_ordered_list(struct octeon_device *octeon_dev,
 		spin_lock_bh(&ordered_sc_list->lock);
 
 		if (ordered_sc_list->head.next == &ordered_sc_list->head) {
-			/* ordered_sc_list is empty; there is
-			 * nothing to process
-			 */
-			spin_unlock_bh
-			    (&ordered_sc_list->lock);
+			spin_unlock_bh(&ordered_sc_list->lock);
 			return 1;
 		}
 

drivers/net/ethernet/cavium/liquidio/response_manager.h

@@ -4,7 +4,7 @@
  * Contact: support@cavium.com
  *          Please include "LiquidIO" in the subject.
  *
- * Copyright (c) 2003-2015 Cavium, Inc.
+ * Copyright (c) 2003-2016 Cavium, Inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
@@ -15,9 +15,6 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium, Inc. for more information
  **********************************************************************/
 
 /*! \file response_manager.h
@@ -85,7 +82,6 @@ enum {
 /**  A value of 0x00000000 indicates no error i.e. success */
 #define DRIVER_ERROR_NONE                 0x00000000
 
-/**  (Major number: 0x0000; Minor Number: 0x0001) */
 #define DRIVER_ERROR_REQ_PENDING          0x00000001
 #define DRIVER_ERROR_REQ_TIMEOUT          0x00000003
 #define DRIVER_ERROR_REQ_EINTR            0x00000004