qib_init.c File Reference

#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/idr.h>
#include <linux/module.h>
#include <linux/printk.h>
#include "qib.h"
#include "qib_common.h"
#include "qib_mad.h"

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   QIB_DRV_NAME ": " fmt
#define	QIB_MIN_USER_CTXT_BUFCNT   7
#define	QLOGIC_IB_R_SOFTWARE_MASK   0xFF
#define	QLOGIC_IB_R_SOFTWARE_SHIFT   24
#define	QLOGIC_IB_R_EMULATOR_MASK   (1ULL<<62)
#define	DRIVER_LOAD_MSG   "QLogic " QIB_DRV_NAME " loaded: "
#define	PFX   QIB_DRV_NAME ": "

Functions
	module_param_named (cfgctxts, qib_cfgctxts, ushort, S_IRUGO)
	MODULE_PARM_DESC (cfgctxts,"Set max number of contexts to use")
	module_param_named (mini_init, qib_mini_init, ushort, S_IRUGO)
	MODULE_PARM_DESC (mini_init,"If set, do minimal diag init")
	module_param_named (krcvqs, qib_n_krcv_queues, uint, S_IRUGO)
	MODULE_PARM_DESC (krcvqs,"number of kernel receive queues per IB port")
	module_param_named (cc_table_size, qib_cc_table_size, uint, S_IRUGO)
	MODULE_PARM_DESC (cc_table_size,"Congestion control table entries 0 (CCA disabled - default), min = 128, max = 1984")
	module_param_named (wc_pat, qib_wc_pat, uint, S_IRUGO)
	MODULE_PARM_DESC (wc_pat,"enable write-combining via PAT mechanism")
void	qib_set_ctxtcnt (struct qib_devdata *dd)
int	qib_create_ctxts (struct qib_devdata *dd)
struct qib_ctxtdata *	qib_create_ctxtdata (struct qib_pportdata *ppd, u32 ctxt)
void	qib_init_pportdata (struct qib_pportdata *ppd, struct qib_devdata *dd, u8 hw_pidx, u8 port)
int	qib_init (struct qib_devdata *dd, int reinit)
int	__attribute__ ((weak))
struct qib_devdata *	qib_lookup (int unit)
void	qib_free_ctxtdata (struct qib_devdata *dd, struct qib_ctxtdata *rcd)
void	qib_free_devdata (struct qib_devdata *dd)
struct qib_devdata *	qib_alloc_devdata (struct pci_dev *pdev, size_t extra)
void	qib_disable_after_error (struct qib_devdata *dd)
	MODULE_DEVICE_TABLE (pci, qib_pci_tbl)
	module_init (qlogic_ib_init)
	module_exit (qlogic_ib_cleanup)
int	qib_create_rcvhdrq (struct qib_devdata *dd, struct qib_ctxtdata *rcd)
int	qib_setup_eagerbufs (struct qib_ctxtdata *rcd)
int	init_chip_wc_pat (struct qib_devdata *dd, u32 vl15buflen)

Variables
ushort	qib_cfgctxts
ushort	qib_mini_init
unsigned	qib_n_krcv_queues
unsigned	qib_cc_table_size
unsigned	qib_wc_pat = 1
struct workqueue_struct *	qib_cq_wq
u32	qib_cpulist_count
unsigned long *	qib_cpulist
struct pci_driver	qib_driver

Macro Definition Documentation

#define DRIVER_LOAD_MSG   "QLogic " QIB_DRV_NAME " loaded: "

Definition at line 1141 of file qib_init.c.

#define PFX   QIB_DRV_NAME ": "

Definition at line 1142 of file qib_init.c.

#define pr_fmt

(

fmt

)

QIB_DRV_NAME ": " fmt

Definition at line 48 of file qib_init.c.

#define QIB_MIN_USER_CTXT_BUFCNT   7

Definition at line 53 of file qib_init.c.

#define QLOGIC_IB_R_EMULATOR_MASK   (1ULL<<62)

Definition at line 57 of file qib_init.c.

#define QLOGIC_IB_R_SOFTWARE_MASK   0xFF

Definition at line 55 of file qib_init.c.

#define QLOGIC_IB_R_SOFTWARE_SHIFT   24

Definition at line 56 of file qib_init.c.

Function Documentation

int __attribute__ ( (weak)  )

read

Definition at line 770 of file qib_init.c.

int init_chip_wc_pat	(	struct qib_devdata *	dd,
		u32	vl15buflen
	)

Definition at line 1649 of file qib_init.c.

MODULE_DEVICE_TABLE	(	pci	,
		qib_pci_tbl
	)

module_exit

(

qlogic_ib_cleanup

)

module_init

(

qlogic_ib_init

)

module_param_named	(	cfgctxts	,
		qib_cfgctxts	,
		ushort	,
		S_IRUGO
	)

module_param_named	(	mini_init	,
		qib_mini_init	,
		ushort	,
		S_IRUGO
	)

module_param_named	(	krcvqs	,
		qib_n_krcv_queues	,
		uint	,
		S_IRUGO
	)

module_param_named	(	cc_table_size	,
		qib_cc_table_size	,
		uint	,
		S_IRUGO
	)

module_param_named	(	wc_pat	,
		qib_wc_pat	,
		uint	,
		S_IRUGO
	)

MODULE_PARM_DESC	(	cfgctxts	,
		"Set max number of contexts to use"
	)

MODULE_PARM_DESC	(	mini_init	,
		"If	set,
		do minimal diag init"
	)

MODULE_PARM_DESC	(	krcvqs	,
		"number of kernel receive queues per IB port"
	)

MODULE_PARM_DESC	(	cc_table_size	,
		"Congestion control table entries 0	CCA disabled - default,
		min	= 128
	)

MODULE_PARM_DESC	(	wc_pat	,
		"enable write-combining via PAT mechanism"
	)

struct qib_devdata* qib_alloc_devdata ( struct pci_dev *  pdev, size_t  extra  )

read

Definition at line 1057 of file qib_init.c.

struct qib_ctxtdata* qib_create_ctxtdata ( struct qib_pportdata *  ppd, u32  ctxt  )

read

Definition at line 164 of file qib_init.c.

int qib_create_ctxts

(

struct qib_devdata *

dd

)

Definition at line 120 of file qib_init.c.

int qib_create_rcvhdrq	(	struct qib_devdata *	dd,
		struct qib_ctxtdata *	rcd
	)

qib_create_rcvhdrq - create a receive header queue : the qlogic_ib device : the context data

This must be contiguous memory (from an i/o perspective), and must be DMA'able (which means for some systems, it will go through an IOMMU, or be forced into a low address range).

Definition at line 1490 of file qib_init.c.

void qib_disable_after_error

(

struct qib_devdata *

dd

)

Definition at line 1108 of file qib_init.c.

void qib_free_ctxtdata	(	struct qib_devdata *	dd,
		struct qib_ctxtdata *	rcd
	)

qib_free_ctxtdata - free a context's allocated data : the qlogic_ib device : the ctxtdata structure

free up any allocated data for a context This should not touch anything that would affect a simultaneous re-allocation of context data, because it is called after qib_mutex is released (and can be called from reinit as well). It should never change any chip state, or global driver state.

Definition at line 909 of file qib_init.c.

void qib_free_devdata

(

struct qib_devdata *

dd

)

Definition at line 1037 of file qib_init.c.

int qib_init	(	struct qib_devdata *	dd,
		int	reinit
	)

qib_init - do the actual initialization sequence on the chip : the qlogic_ib device : reinitializing, so don't allocate new memory

Do the actual initialization sequence on the chip. This is done both from the init routine called from the PCI infrastructure, and when we reset the chip, or detect that it was reset internally, or it's administratively re-enabled.

Memory allocation here and in called routines is only done in the first case (reinit == 0). We have to be careful, because even without memory allocation, we need to re-write all the chip registers TIDs, etc. after the reset or enable has completed.

Definition at line 621 of file qib_init.c.

void qib_init_pportdata	(	struct qib_pportdata *	ppd,
		struct qib_devdata *	dd,
		u8	hw_pidx,
		u8	port
	)

Definition at line 207 of file qib_init.c.

struct qib_devdata* qib_lookup ( int  unit )

read

Definition at line 784 of file qib_init.c.

void qib_set_ctxtcnt

(

struct qib_devdata *

dd

)

Definition at line 101 of file qib_init.c.

int qib_setup_eagerbufs

(

struct qib_ctxtdata *

rcd

)

allocate eager buffers, both kernel and user contexts. : the context we are setting up.

Allocate the eager TID buffers and program them into hip. They are no longer completely contiguous, we do multiple allocation calls. Otherwise we get the OOM code involved, by asking for too much per call, with disastrous results on some kernels.

Definition at line 1560 of file qib_init.c.

Variable Documentation

unsigned qib_cc_table_size

Definition at line 79 of file qib_init.c.

ushort qib_cfgctxts

Definition at line 63 of file qib_init.c.

unsigned long* qib_cpulist

Definition at line 98 of file qib_init.c.

u32 qib_cpulist_count

Definition at line 97 of file qib_init.c.

struct workqueue_struct* qib_cq_wq

Definition at line 92 of file qib_init.c.

struct pci_driver qib_driver

Initial value:

= {
    .name = QIB_DRV_NAME,
    .probe = qib_init_one,
    .remove = __devexit_p(qib_remove_one),
    .id_table = qib_pci_tbl,
    .err_handler = &qib_pci_err_handler,
}

Definition at line 1153 of file qib_init.c.

ushort qib_mini_init

Definition at line 71 of file qib_init.c.

unsigned qib_n_krcv_queues

Definition at line 75 of file qib_init.c.

unsigned qib_wc_pat = 1

Definition at line 88 of file qib_init.c.