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Commit 6092db1a authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'qed-driver'



Ariel Elior says:

====================
Add new drivers: qed & qede

This series implements the driver set for Qlogic's new QL4xxx series.
These are 10/20/25/40/50/100 Gig capable converged nics, supporting
ethernet (obviously), iscsi, fcoe, roce and iwarp protocols.

The overall driver design includes a common module ('qed') and protocol
specific dependent modules for ethernet ('qede'), fcoe ('qedf'),
iscsi ('qedi') and roce ('qedr').
The common module contains all of the common logic, e.g. initialization,
cleanup, infrastructure for interrupt handling, link management, slowpath
etc. as well as protocol agnostic features, and supplying an abstraction
layer for other modules.
The protocol specific modules can be compiled and operated independently
of each other, with the exception of the rdma modules which are dependent
on the ethernet module, in accordance with the kernel rdma stack design.

This series only adds the core and ethernet modules, with basic L2
capabilities. Future series will add the rest of the modules and enhance
the L2 functionality.

Ths patch series is constructed of the following patches:
qed:  Add module with basic common support
qed:  Add basic L2 interface
qede: Add basic Network driver
qed:  Add slowpath L2 support
qede: Add basic network device support
qede: Add classification configuration
qed:  Add link support
qede: Add support for link
qed:  Add statistics support
qede: Add basic ethtool support

This project is a team effort, thanks go to Yuval Mintz, Dmitry Kravkov,
Michal Kalderon, Tomer Tayar, Manish Chopra, Sudarsana Kalluru,
Rajesh Borundia, Sony Chacko, Artum Zolotushko, Harish Patil, Rasesh Mody,
Sergey Ukhterov and Elad Manela, as well as former team members,
Eilon Greenstein and Shmulik Ravid.

Changes from previos version:
-----------------------------

From Version 7:
  - Various small fixes according to Dave's suggestions; Largest change
    [code-wise] - don't use tabs for indenting function arguments.

From Version 6:
  - Reduced the number of arguments for functions with exceptionally
    high number of parameters.

From Version 5:
  - Style change and fixes [mostly in 1, 4 and 7].
    Thanks go to Francois Romieu, a mere mortal. ;-)

From Version 4:
  - Drop dependency for x86_64.

From Version 3:
  - Limit support of initial submission to x86_64.
  - Fix endian problems appearing via sparse [although no BE support yet].
  - Fix small issues suggested by the kbuild test robot.

From Version 2:
  - Removed U64_{HI,LO}; Using {upper,lower}_32_bits instead.
  - Use regular napi weight definition.
  - [We still use the __le variants for variables, since we didn't get
     a reply regarding the change into non-user API types].

From Version 1:
  - Removed private license file; Instead revised comments at source headers.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 8941faa1 133fac0e
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+10 −0
Original line number Diff line number Diff line
@@ -8540,6 +8540,16 @@ L: netdev@vger.kernel.org
S:	Supported
F:	drivers/net/ethernet/qlogic/qlge/

QLOGIC QL4xxx ETHERNET DRIVER
M:	Yuval Mintz <Yuval.Mintz@qlogic.com>
M:	Ariel Elior <Ariel.Elior@qlogic.com>
M:	everest-linux-l2@qlogic.com
L:	netdev@vger.kernel.org
S:	Supported
F:	drivers/net/ethernet/qlogic/qed/
F:	include/linux/qed/
F:	drivers/net/ethernet/qlogic/qede/

QNX4 FILESYSTEM
M:	Anders Larsen <al@alarsen.net>
W:	http://www.alarsen.net/linux/qnx4fs/
+11 −0
Original line number Diff line number Diff line
@@ -91,4 +91,15 @@ config NETXEN_NIC
	---help---
	  This enables the support for NetXen's Gigabit Ethernet card.

config QED
	tristate "QLogic QED 25/40/100Gb core driver"
	depends on PCI
	---help---
	  This enables the support for ...

config QEDE
	tristate "QLogic QED 25/40/100Gb Ethernet NIC"
	depends on QED
	---help---
	  This enables the support for ...
endif # NET_VENDOR_QLOGIC
+2 −0
Original line number Diff line number Diff line
@@ -6,3 +6,5 @@ obj-$(CONFIG_QLA3XXX) += qla3xxx.o
obj-$(CONFIG_QLCNIC) += qlcnic/
obj-$(CONFIG_QLGE) += qlge/
obj-$(CONFIG_NETXEN_NIC) += netxen/
obj-$(CONFIG_QED) += qed/
obj-$(CONFIG_QEDE)+= qede/
+4 −0
Original line number Diff line number Diff line
obj-$(CONFIG_QED) := qed.o

qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
	 qed_int.o qed_main.o qed_mcp.o qed_sp_commands.o qed_spq.o qed_l2.o
+496 −0
Original line number Diff line number Diff line
/* QLogic qed NIC Driver
 * Copyright (c) 2015 QLogic Corporation
 *
 * This software is available under the terms of the GNU General Public License
 * (GPL) Version 2, available from the file COPYING in the main directory of
 * this source tree.
 */

#ifndef _QED_H
#define _QED_H

#include <linux/types.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/workqueue.h>
#include <linux/zlib.h>
#include <linux/hashtable.h>
#include <linux/qed/qed_if.h>
#include "qed_hsi.h"

extern const struct qed_common_ops qed_common_ops_pass;
#define DRV_MODULE_VERSION "8.4.0.0"

#define MAX_HWFNS_PER_DEVICE    (4)
#define NAME_SIZE 16
#define VER_SIZE 16

/* cau states */
enum qed_coalescing_mode {
	QED_COAL_MODE_DISABLE,
	QED_COAL_MODE_ENABLE
};

struct qed_eth_cb_ops;
struct qed_dev_info;

/* helpers */
static inline u32 qed_db_addr(u32 cid, u32 DEMS)
{
	u32 db_addr = FIELD_VALUE(DB_LEGACY_ADDR_DEMS, DEMS) |
		      FIELD_VALUE(DB_LEGACY_ADDR_ICID, cid);

	return db_addr;
}

#define ALIGNED_TYPE_SIZE(type_name, p_hwfn)				     \
	((sizeof(type_name) + (u32)(1 << (p_hwfn->cdev->cache_shift)) - 1) & \
	 ~((1 << (p_hwfn->cdev->cache_shift)) - 1))

#define for_each_hwfn(cdev, i)  for (i = 0; i < cdev->num_hwfns; i++)

#define D_TRINE(val, cond1, cond2, true1, true2, def) \
	(val == (cond1) ? true1 :		      \
	 (val == (cond2) ? true2 : def))

/* forward */
struct qed_ptt_pool;
struct qed_spq;
struct qed_sb_info;
struct qed_sb_attn_info;
struct qed_cxt_mngr;
struct qed_sb_sp_info;
struct qed_mcp_info;

struct qed_rt_data {
	u32 init_val;
	bool b_valid;
};

/* The PCI personality is not quite synonymous to protocol ID:
 * 1. All personalities need CORE connections
 * 2. The Ethernet personality may support also the RoCE protocol
 */
enum qed_pci_personality {
	QED_PCI_ETH,
	QED_PCI_DEFAULT /* default in shmem */
};

/* All VFs are symmetric, all counters are PF + all VFs */
struct qed_qm_iids {
	u32 cids;
	u32 vf_cids;
	u32 tids;
};

enum QED_RESOURCES {
	QED_SB,
	QED_L2_QUEUE,
	QED_VPORT,
	QED_RSS_ENG,
	QED_PQ,
	QED_RL,
	QED_MAC,
	QED_VLAN,
	QED_ILT,
	QED_MAX_RESC,
};

enum QED_FEATURE {
	QED_PF_L2_QUE,
	QED_MAX_FEATURES,
};

enum QED_PORT_MODE {
	QED_PORT_MODE_DE_2X40G,
	QED_PORT_MODE_DE_2X50G,
	QED_PORT_MODE_DE_1X100G,
	QED_PORT_MODE_DE_4X10G_F,
	QED_PORT_MODE_DE_4X10G_E,
	QED_PORT_MODE_DE_4X20G,
	QED_PORT_MODE_DE_1X40G,
	QED_PORT_MODE_DE_2X25G,
	QED_PORT_MODE_DE_1X25G
};

struct qed_hw_info {
	/* PCI personality */
	enum qed_pci_personality	personality;

	/* Resource Allocation scheme results */
	u32				resc_start[QED_MAX_RESC];
	u32				resc_num[QED_MAX_RESC];
	u32				feat_num[QED_MAX_FEATURES];

#define RESC_START(_p_hwfn, resc) ((_p_hwfn)->hw_info.resc_start[resc])
#define RESC_NUM(_p_hwfn, resc) ((_p_hwfn)->hw_info.resc_num[resc])
#define FEAT_NUM(_p_hwfn, resc) ((_p_hwfn)->hw_info.feat_num[resc])

	u8				num_tc;
	u8				offload_tc;
	u8				non_offload_tc;

	u32				concrete_fid;
	u16				opaque_fid;
	u16				ovlan;
	u32				part_num[4];

	u32				vendor_id;
	u32				device_id;

	unsigned char			hw_mac_addr[ETH_ALEN];

	struct qed_igu_info		*p_igu_info;

	u32				port_mode;
	u32				hw_mode;
};

struct qed_hw_cid_data {
	u32	cid;
	bool	b_cid_allocated;

	/* Additional identifiers */
	u16	opaque_fid;
	u8	vport_id;
};

/* maximun size of read/write commands (HW limit) */
#define DMAE_MAX_RW_SIZE        0x2000

struct qed_dmae_info {
	/* Mutex for synchronizing access to functions */
	struct mutex	mutex;

	u8		channel;

	dma_addr_t	completion_word_phys_addr;

	/* The memory location where the DMAE writes the completion
	 * value when an operation is finished on this context.
	 */
	u32		*p_completion_word;

	dma_addr_t	intermediate_buffer_phys_addr;

	/* An intermediate buffer for DMAE operations that use virtual
	 * addresses - data is DMA'd to/from this buffer and then
	 * memcpy'd to/from the virtual address
	 */
	u32		*p_intermediate_buffer;

	dma_addr_t	dmae_cmd_phys_addr;
	struct dmae_cmd *p_dmae_cmd;
};

struct qed_qm_info {
	struct init_qm_pq_params	*qm_pq_params;
	struct init_qm_vport_params	*qm_vport_params;
	struct init_qm_port_params	*qm_port_params;
	u16				start_pq;
	u8				start_vport;
	u8				pure_lb_pq;
	u8				offload_pq;
	u8				pure_ack_pq;
	u8				vf_queues_offset;
	u16				num_pqs;
	u16				num_vf_pqs;
	u8				num_vports;
	u8				max_phys_tcs_per_port;
	bool				pf_rl_en;
	bool				pf_wfq_en;
	bool				vport_rl_en;
	bool				vport_wfq_en;
	u8				pf_wfq;
	u32				pf_rl;
};

struct storm_stats {
	u32     address;
	u32     len;
};

struct qed_storm_stats {
	struct storm_stats mstats;
	struct storm_stats pstats;
	struct storm_stats tstats;
	struct storm_stats ustats;
};

struct qed_fw_data {
	struct fw_ver_info	*fw_ver_info;
	const u8		*modes_tree_buf;
	union init_op		*init_ops;
	const u32		*arr_data;
	u32			init_ops_size;
};

struct qed_simd_fp_handler {
	void	*token;
	void	(*func)(void *);
};

struct qed_hwfn {
	struct qed_dev			*cdev;
	u8				my_id;          /* ID inside the PF */
#define IS_LEAD_HWFN(edev)              (!((edev)->my_id))
	u8				rel_pf_id;      /* Relative to engine*/
	u8				abs_pf_id;
#define QED_PATH_ID(_p_hwfn)		((_p_hwfn)->abs_pf_id & 1)
	u8				port_id;
	bool				b_active;

	u32				dp_module;
	u8				dp_level;
	char				name[NAME_SIZE];

	bool				first_on_engine;
	bool				hw_init_done;

	/* BAR access */
	void __iomem			*regview;
	void __iomem			*doorbells;
	u64				db_phys_addr;
	unsigned long			db_size;

	/* PTT pool */
	struct qed_ptt_pool		*p_ptt_pool;

	/* HW info */
	struct qed_hw_info		hw_info;

	/* rt_array (for init-tool) */
	struct qed_rt_data		*rt_data;

	/* SPQ */
	struct qed_spq			*p_spq;

	/* EQ */
	struct qed_eq			*p_eq;

	/* Consolidate Q*/
	struct qed_consq		*p_consq;

	/* Slow-Path definitions */
	struct tasklet_struct		*sp_dpc;
	bool				b_sp_dpc_enabled;

	struct qed_ptt			*p_main_ptt;
	struct qed_ptt			*p_dpc_ptt;

	struct qed_sb_sp_info		*p_sp_sb;
	struct qed_sb_attn_info		*p_sb_attn;

	/* Protocol related */
	struct qed_pf_params		pf_params;

	/* Array of sb_info of all status blocks */
	struct qed_sb_info		*sbs_info[MAX_SB_PER_PF_MIMD];
	u16				num_sbs;

	struct qed_cxt_mngr		*p_cxt_mngr;

	/* Flag indicating whether interrupts are enabled or not*/
	bool				b_int_enabled;

	struct qed_mcp_info		*mcp_info;

	struct qed_hw_cid_data		*p_tx_cids;
	struct qed_hw_cid_data		*p_rx_cids;

	struct qed_dmae_info		dmae_info;

	/* QM init */
	struct qed_qm_info		qm_info;
	struct qed_storm_stats		storm_stats;

	/* Buffer for unzipping firmware data */
	void				*unzip_buf;

	struct qed_simd_fp_handler	simd_proto_handler[64];

	struct z_stream_s		*stream;
};

struct pci_params {
	int		pm_cap;

	unsigned long	mem_start;
	unsigned long	mem_end;
	unsigned int	irq;
	u8		pf_num;
};

struct qed_int_param {
	u32	int_mode;
	u8	num_vectors;
	u8	min_msix_cnt; /* for minimal functionality */
};

struct qed_int_params {
	struct qed_int_param	in;
	struct qed_int_param	out;
	struct msix_entry	*msix_table;
	bool			fp_initialized;
	u8			fp_msix_base;
	u8			fp_msix_cnt;
};

struct qed_dev {
	u32	dp_module;
	u8	dp_level;
	char	name[NAME_SIZE];

	u8	type;
#define QED_DEV_TYPE_BB_A0      (0 << 0)
#define QED_DEV_TYPE_MASK       (0x3)
#define QED_DEV_TYPE_SHIFT      (0)

	u16	chip_num;
#define CHIP_NUM_MASK                   0xffff
#define CHIP_NUM_SHIFT                  16

	u16	chip_rev;
#define CHIP_REV_MASK                   0xf
#define CHIP_REV_SHIFT                  12

	u16				chip_metal;
#define CHIP_METAL_MASK                 0xff
#define CHIP_METAL_SHIFT                4

	u16				chip_bond_id;
#define CHIP_BOND_ID_MASK               0xf
#define CHIP_BOND_ID_SHIFT              0

	u8				num_engines;
	u8				num_ports_in_engines;
	u8				num_funcs_in_port;

	u8				path_id;
	enum mf_mode			mf_mode;
#define IS_MF(_p_hwfn)          (((_p_hwfn)->cdev)->mf_mode != SF)
#define IS_MF_SI(_p_hwfn)       (((_p_hwfn)->cdev)->mf_mode == MF_NPAR)
#define IS_MF_SD(_p_hwfn)       (((_p_hwfn)->cdev)->mf_mode == MF_OVLAN)

	int				pcie_width;
	int				pcie_speed;
	u8				ver_str[VER_SIZE];

	/* Add MF related configuration */
	u8				mcp_rev;
	u8				boot_mode;

	u8				wol;

	u32				int_mode;
	enum qed_coalescing_mode	int_coalescing_mode;
	u8				rx_coalesce_usecs;
	u8				tx_coalesce_usecs;

	/* Start Bar offset of first hwfn */
	void __iomem			*regview;
	void __iomem			*doorbells;
	u64				db_phys_addr;
	unsigned long			db_size;

	/* PCI */
	u8				cache_shift;

	/* Init */
	const struct iro		*iro_arr;
#define IRO (p_hwfn->cdev->iro_arr)

	/* HW functions */
	u8				num_hwfns;
	struct qed_hwfn			hwfns[MAX_HWFNS_PER_DEVICE];

	u32				drv_type;

	struct qed_eth_stats		*reset_stats;
	struct qed_fw_data		*fw_data;

	u32				mcp_nvm_resp;

	/* Linux specific here */
	struct  qede_dev		*edev;
	struct  pci_dev			*pdev;
	int				msg_enable;

	struct pci_params		pci_params;

	struct qed_int_params		int_params;

	u8				protocol;
#define IS_QED_ETH_IF(cdev)     ((cdev)->protocol == QED_PROTOCOL_ETH)

	/* Callbacks to protocol driver */
	union {
		struct qed_common_cb_ops	*common;
		struct qed_eth_cb_ops		*eth;
	} protocol_ops;
	void				*ops_cookie;

	const struct firmware		*firmware;
};

#define QED_GET_TYPE(dev)       (((dev)->type & QED_DEV_TYPE_MASK) >> \
				 QED_DEV_TYPE_SHIFT)
#define QED_IS_BB_A0(dev)       (QED_GET_TYPE(dev) == QED_DEV_TYPE_BB_A0)
#define QED_IS_BB(dev)  (QED_IS_BB_A0(dev))

#define NUM_OF_SBS(dev)         MAX_SB_PER_PATH_BB
#define NUM_OF_ENG_PFS(dev)     MAX_NUM_PFS_BB

/**
 * @brief qed_concrete_to_sw_fid - get the sw function id from
 *        the concrete value.
 *
 * @param concrete_fid
 *
 * @return inline u8
 */
static inline u8 qed_concrete_to_sw_fid(struct qed_dev *cdev,
					u32 concrete_fid)
{
	u8 pfid = GET_FIELD(concrete_fid, PXP_CONCRETE_FID_PFID);

	return pfid;
}

#define PURE_LB_TC 8

#define QED_LEADING_HWFN(dev)   (&dev->hwfns[0])

/* Other Linux specific common definitions */
#define DP_NAME(cdev) ((cdev)->name)

#define REG_ADDR(cdev, offset)          (void __iomem *)((u8 __iomem *)\
						(cdev->regview) + \
							 (offset))

#define REG_RD(cdev, offset)            readl(REG_ADDR(cdev, offset))
#define REG_WR(cdev, offset, val)       writel((u32)val, REG_ADDR(cdev, offset))
#define REG_WR16(cdev, offset, val)     writew((u16)val, REG_ADDR(cdev, offset))

#define DOORBELL(cdev, db_addr, val)			 \
	writel((u32)val, (void __iomem *)((u8 __iomem *)\
					  (cdev->doorbells) + (db_addr)))

/* Prototypes */
int qed_fill_dev_info(struct qed_dev *cdev,
		      struct qed_dev_info *dev_info);
void qed_link_update(struct qed_hwfn *hwfn);
u32 qed_unzip_data(struct qed_hwfn *p_hwfn,
		   u32 input_len, u8 *input_buf,
		   u32 max_size, u8 *unzip_buf);

#define QED_ETH_INTERFACE_VERSION       300

#endif /* _QED_H */
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