105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/*
|
|
* QLogic Fibre Channel HBA Driver
|
|
* Copyright (c) 2003-2011 QLogic Corporation
|
|
*
|
|
* See LICENSE.qla2xxx for copyright and licensing details.
|
|
*/
|
|
|
|
/*
|
|
* qla2x00_debounce_register
|
|
* Debounce register.
|
|
*
|
|
* Input:
|
|
* port = register address.
|
|
*
|
|
* Returns:
|
|
* register value.
|
|
*/
|
|
static __inline__ uint16_t
|
|
qla2x00_debounce_register(volatile uint16_t __iomem *addr)
|
|
{
|
|
volatile uint16_t first;
|
|
volatile uint16_t second;
|
|
|
|
do {
|
|
first = RD_REG_WORD(addr);
|
|
barrier();
|
|
cpu_relax();
|
|
second = RD_REG_WORD(addr);
|
|
} while (first != second);
|
|
|
|
return (first);
|
|
}
|
|
|
|
static inline void
|
|
qla2x00_poll(struct rsp_que *rsp)
|
|
{
|
|
unsigned long flags;
|
|
struct qla_hw_data *ha = rsp->hw;
|
|
local_irq_save(flags);
|
|
if (IS_QLA82XX(ha))
|
|
qla82xx_poll(0, rsp);
|
|
else
|
|
ha->isp_ops->intr_handler(0, rsp);
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
static inline uint8_t *
|
|
host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
|
|
{
|
|
uint32_t *ifcp = (uint32_t *) fcp;
|
|
uint32_t *ofcp = (uint32_t *) fcp;
|
|
uint32_t iter = bsize >> 2;
|
|
|
|
for (; iter ; iter--)
|
|
*ofcp++ = swab32(*ifcp++);
|
|
|
|
return fcp;
|
|
}
|
|
|
|
static inline int
|
|
qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
if (IS_FWI2_CAPABLE(ha))
|
|
return (loop_id > NPH_LAST_HANDLE);
|
|
|
|
return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
|
|
loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);
|
|
}
|
|
|
|
static inline void
|
|
qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp)
|
|
{
|
|
struct dsd_dma *dsd_ptr, *tdsd_ptr;
|
|
|
|
/* clean up allocated prev pool */
|
|
list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
|
|
&((struct crc_context *)sp->ctx)->dsd_list, list) {
|
|
dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
|
|
dsd_ptr->dsd_list_dma);
|
|
list_del(&dsd_ptr->list);
|
|
kfree(dsd_ptr);
|
|
}
|
|
INIT_LIST_HEAD(&((struct crc_context *)sp->ctx)->dsd_list);
|
|
}
|
|
|
|
static inline void
|
|
qla2x00_set_fcport_state(fc_port_t *fcport, int state)
|
|
{
|
|
int old_state;
|
|
|
|
old_state = atomic_read(&fcport->state);
|
|
atomic_set(&fcport->state, state);
|
|
|
|
/* Don't print state transitions during initial allocation of fcport */
|
|
if (old_state && old_state != state) {
|
|
ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
|
|
"FCPort state transitioned from %s to %s - "
|
|
"portid=%02x%02x%02x.\n",
|
|
port_state_str[old_state], port_state_str[state],
|
|
fcport->d_id.b.domain, fcport->d_id.b.area,
|
|
fcport->d_id.b.al_pa);
|
|
}
|
|
}
|