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linux/drivers/net/mlx4/mlx4.h
Roland Dreier fa0681d212 mlx4_core: Allocate and map sufficient ICM memory for EQ context 
The current implementation allocates a single host page for EQ context
memory, which was OK when we only allocated a few EQs.  However, since
we now allocate an EQ for each CPU core, this patch removes the
hard-coded limit (which we exceed with 4 KB pages and 128 byte EQ
context entries with 32 CPUs) and uses the same ICM table code as all
other context tables, which ends up simplifying the code quite a bit
while fixing the problem.

This problem was actually hit in practice on a dual-socket Nehalem box
with 16 real hardware threads and sufficiently odd ACPI tables that it
shows on boot

    SMP: Allowing 32 CPUs, 16 hotplug CPUs

so num_possible_cpus() ends up 32, and mlx4 ends up creating 33 MSI-X
interrupts and 33 EQs.  This mlx4 bug means that mlx4 can't even
initialize at all on this quite mainstream system.

Cc: <stable@kernel.org>
Reported-by: Eli Cohen <eli@mellanox.co.il>
Tested-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05 20:24:49 -07:00

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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed 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, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef MLX4_H
#define MLX4_H
#include <linux/mutex.h>
#include <linux/radix-tree.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/doorbell.h>
#define DRV_NAME "mlx4_core"
#define PFX DRV_NAME ": "
#define DRV_VERSION "0.01"
#define DRV_RELDATE "May 1, 2007"
enum {
MLX4_HCR_BASE = 0x80680,
MLX4_HCR_SIZE = 0x0001c,
MLX4_CLR_INT_SIZE = 0x00008
};
enum {
MLX4_MGM_ENTRY_SIZE = 0x100,
MLX4_QP_PER_MGM = 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),
MLX4_MTT_ENTRY_PER_SEG = 8
};
enum {
MLX4_NUM_PDS = 1 << 15
};
enum {
MLX4_CMPT_TYPE_QP = 0,
MLX4_CMPT_TYPE_SRQ = 1,
MLX4_CMPT_TYPE_CQ = 2,
MLX4_CMPT_TYPE_EQ = 3,
MLX4_CMPT_NUM_TYPE
};
enum {
MLX4_CMPT_SHIFT = 24,
MLX4_NUM_CMPTS = MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
};
#ifdef CONFIG_MLX4_DEBUG
extern int mlx4_debug_level;
#else /* CONFIG_MLX4_DEBUG */
#define mlx4_debug_level (0)
#endif /* CONFIG_MLX4_DEBUG */
#define mlx4_dbg(mdev, format, arg...) \
do { \
if (mlx4_debug_level) \
dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
} while (0)
#define mlx4_err(mdev, format, arg...) \
dev_err(&mdev->pdev->dev, format, ## arg)
#define mlx4_info(mdev, format, arg...) \
dev_info(&mdev->pdev->dev, format, ## arg)
#define mlx4_warn(mdev, format, arg...) \
dev_warn(&mdev->pdev->dev, format, ## arg)
struct mlx4_bitmap {
u32 last;
u32 top;
u32 max;
u32 reserved_top;
u32 mask;
spinlock_t lock;
unsigned long *table;
};
struct mlx4_buddy {
unsigned long **bits;
unsigned int *num_free;
int max_order;
spinlock_t lock;
};
struct mlx4_icm;
struct mlx4_icm_table {
u64 virt;
int num_icm;
int num_obj;
int obj_size;
int lowmem;
int coherent;
struct mutex mutex;
struct mlx4_icm **icm;
};
struct mlx4_eq {
struct mlx4_dev *dev;
void __iomem *doorbell;
int eqn;
u32 cons_index;
u16 irq;
u16 have_irq;
int nent;
struct mlx4_buf_list *page_list;
struct mlx4_mtt mtt;
};
struct mlx4_profile {
int num_qp;
int rdmarc_per_qp;
int num_srq;
int num_cq;
int num_mcg;
int num_mpt;
int num_mtt;
};
struct mlx4_fw {
u64 clr_int_base;
u64 catas_offset;
struct mlx4_icm *fw_icm;
struct mlx4_icm *aux_icm;
u32 catas_size;
u16 fw_pages;
u8 clr_int_bar;
u8 catas_bar;
};
struct mlx4_cmd {
struct pci_pool *pool;
void __iomem *hcr;
struct mutex hcr_mutex;
struct semaphore poll_sem;
struct semaphore event_sem;
int max_cmds;
spinlock_t context_lock;
int free_head;
struct mlx4_cmd_context *context;
u16 token_mask;
u8 use_events;
u8 toggle;
};
struct mlx4_uar_table {
struct mlx4_bitmap bitmap;
};
struct mlx4_mr_table {
struct mlx4_bitmap mpt_bitmap;
struct mlx4_buddy mtt_buddy;
u64 mtt_base;
u64 mpt_base;
struct mlx4_icm_table mtt_table;
struct mlx4_icm_table dmpt_table;
};
struct mlx4_cq_table {
struct mlx4_bitmap bitmap;
spinlock_t lock;
struct radix_tree_root tree;
struct mlx4_icm_table table;
struct mlx4_icm_table cmpt_table;
};
struct mlx4_eq_table {
struct mlx4_bitmap bitmap;
char *irq_names;
void __iomem *clr_int;
void __iomem **uar_map;
u32 clr_mask;
struct mlx4_eq *eq;
struct mlx4_icm_table table;
struct mlx4_icm_table cmpt_table;
int have_irq;
u8 inta_pin;
};
struct mlx4_srq_table {
struct mlx4_bitmap bitmap;
spinlock_t lock;
struct radix_tree_root tree;
struct mlx4_icm_table table;
struct mlx4_icm_table cmpt_table;
};
struct mlx4_qp_table {
struct mlx4_bitmap bitmap;
u32 rdmarc_base;
int rdmarc_shift;
spinlock_t lock;
struct mlx4_icm_table qp_table;
struct mlx4_icm_table auxc_table;
struct mlx4_icm_table altc_table;
struct mlx4_icm_table rdmarc_table;
struct mlx4_icm_table cmpt_table;
};
struct mlx4_mcg_table {
struct mutex mutex;
struct mlx4_bitmap bitmap;
struct mlx4_icm_table table;
};
struct mlx4_catas_err {
u32 __iomem *map;
struct timer_list timer;
struct list_head list;
};
#define MLX4_MAX_MAC_NUM 128
#define MLX4_MAC_TABLE_SIZE (MLX4_MAX_MAC_NUM << 3)
struct mlx4_mac_table {
__be64 entries[MLX4_MAX_MAC_NUM];
int refs[MLX4_MAX_MAC_NUM];
struct mutex mutex;
int total;
int max;
};
#define MLX4_MAX_VLAN_NUM 128
#define MLX4_VLAN_TABLE_SIZE (MLX4_MAX_VLAN_NUM << 2)
struct mlx4_vlan_table {
__be32 entries[MLX4_MAX_VLAN_NUM];
int refs[MLX4_MAX_VLAN_NUM];
struct mutex mutex;
int total;
int max;
};
struct mlx4_port_info {
struct mlx4_dev *dev;
int port;
char dev_name[16];
struct device_attribute port_attr;
enum mlx4_port_type tmp_type;
struct mlx4_mac_table mac_table;
struct mlx4_vlan_table vlan_table;
};
struct mlx4_sense {
struct mlx4_dev *dev;
u8 do_sense_port[MLX4_MAX_PORTS + 1];
u8 sense_allowed[MLX4_MAX_PORTS + 1];
struct delayed_work sense_poll;
};
struct mlx4_priv {
struct mlx4_dev dev;
struct list_head dev_list;
struct list_head ctx_list;
spinlock_t ctx_lock;
struct list_head pgdir_list;
struct mutex pgdir_mutex;
struct mlx4_fw fw;
struct mlx4_cmd cmd;
struct mlx4_bitmap pd_bitmap;
struct mlx4_uar_table uar_table;
struct mlx4_mr_table mr_table;
struct mlx4_cq_table cq_table;
struct mlx4_eq_table eq_table;
struct mlx4_srq_table srq_table;
struct mlx4_qp_table qp_table;
struct mlx4_mcg_table mcg_table;
struct mlx4_catas_err catas_err;
void __iomem *clr_base;
struct mlx4_uar driver_uar;
void __iomem *kar;
struct mlx4_port_info port[MLX4_MAX_PORTS + 1];
struct mlx4_sense sense;
struct mutex port_mutex;
};
static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
{
return container_of(dev, struct mlx4_priv, dev);
}
#define MLX4_SENSE_RANGE (HZ * 3)
extern struct workqueue_struct *mlx4_wq;
u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
u32 reserved_bot, u32 resetrved_top);
void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
int mlx4_reset(struct mlx4_dev *dev);
int mlx4_alloc_eq_table(struct mlx4_dev *dev);
void mlx4_free_eq_table(struct mlx4_dev *dev);
int mlx4_init_pd_table(struct mlx4_dev *dev);
int mlx4_init_uar_table(struct mlx4_dev *dev);
int mlx4_init_mr_table(struct mlx4_dev *dev);
int mlx4_init_eq_table(struct mlx4_dev *dev);
int mlx4_init_cq_table(struct mlx4_dev *dev);
int mlx4_init_qp_table(struct mlx4_dev *dev);
int mlx4_init_srq_table(struct mlx4_dev *dev);
int mlx4_init_mcg_table(struct mlx4_dev *dev);
void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
void mlx4_start_catas_poll(struct mlx4_dev *dev);
void mlx4_stop_catas_poll(struct mlx4_dev *dev);
void mlx4_catas_init(void);
int mlx4_restart_one(struct pci_dev *pdev);
int mlx4_register_device(struct mlx4_dev *dev);
void mlx4_unregister_device(struct mlx4_dev *dev);
void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port);
struct mlx4_dev_cap;
struct mlx4_init_hca_param;
u64 mlx4_make_profile(struct mlx4_dev *dev,
struct mlx4_profile *request,
struct mlx4_dev_cap *dev_cap,
struct mlx4_init_hca_param *init_hca);
int mlx4_cmd_init(struct mlx4_dev *dev);
void mlx4_cmd_cleanup(struct mlx4_dev *dev);
void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
int mlx4_cmd_use_events(struct mlx4_dev *dev);
void mlx4_cmd_use_polling(struct mlx4_dev *dev);
void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
void mlx4_handle_catas_err(struct mlx4_dev *dev);
void mlx4_do_sense_ports(struct mlx4_dev *dev,
enum mlx4_port_type *stype,
enum mlx4_port_type *defaults);
void mlx4_start_sense(struct mlx4_dev *dev);
void mlx4_stop_sense(struct mlx4_dev *dev);
void mlx4_sense_init(struct mlx4_dev *dev);
int mlx4_check_port_params(struct mlx4_dev *dev,
enum mlx4_port_type *port_type);
int mlx4_change_port_types(struct mlx4_dev *dev,
enum mlx4_port_type *port_types);
void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
#endif /* MLX4_H */
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