diff options
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r-- | drivers/s390/cio/blacklist.c | 4 | ||||
-rw-r--r-- | drivers/s390/cio/chsc.c | 30 | ||||
-rw-r--r-- | drivers/s390/cio/cio.c | 2 | ||||
-rw-r--r-- | drivers/s390/cio/cio_debug.h | 22 | ||||
-rw-r--r-- | drivers/s390/cio/qdio.c | 36 |
5 files changed, 50 insertions, 44 deletions
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index cb8e2e672b6..0960bef7b19 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -414,11 +414,11 @@ cio_ignore_proc_init (void) entry = create_proc_entry ("cio_ignore", S_IFREG | S_IRUGO | S_IWUSR, &proc_root); if (!entry) - return 0; + return -ENOENT; entry->proc_fops = &cio_ignore_proc_fops; - return 1; + return 0; } __initcall (cio_ignore_proc_init); diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 6412b2c3edd..72187e54dca 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -242,28 +242,10 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) if (sch->vpm == mask) goto out_unreg; - if ((sch->schib.scsw.actl & (SCSW_ACTL_CLEAR_PEND | - SCSW_ACTL_HALT_PEND | - SCSW_ACTL_START_PEND | - SCSW_ACTL_RESUME_PEND)) && - (sch->schib.pmcw.lpum == mask)) { - int cc = cio_cancel(sch); - - if (cc == -ENODEV) - goto out_unreg; - - if (cc == -EINVAL) { - cc = cio_clear(sch); - if (cc == -ENODEV) - goto out_unreg; - /* Call handler. */ - if (sch->driver && sch->driver->termination) - sch->driver->termination(&sch->dev); - goto out_unlock; - } - } else if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && - (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && - (sch->schib.pmcw.lpum == mask)) { + if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && + (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && + (sch->schib.pmcw.lpum == mask) && + (sch->vpm == 0)) { int cc; cc = cio_clear(sch); @@ -653,13 +635,13 @@ __chp_add(struct subchannel_id schid, void *data) if (sch->schib.pmcw.chpid[i] == chp->id) { if (stsch(sch->schid, &sch->schib) != 0) { /* Endgame. */ - spin_unlock(&sch->lock); + spin_unlock_irq(&sch->lock); return -ENXIO; } break; } if (i==8) { - spin_unlock(&sch->lock); + spin_unlock_irq(&sch->lock); return 0; } sch->lpm = ((sch->schib.pmcw.pim & diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index cbb86fa5f29..5b20d8c9c02 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -67,7 +67,7 @@ cio_debug_init (void) goto out_unregister; debug_register_view (cio_debug_msg_id, &debug_sprintf_view); debug_set_level (cio_debug_msg_id, 2); - cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 8); + cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 16); if (!cio_debug_trace_id) goto out_unregister; debug_register_view (cio_debug_trace_id, &debug_hex_ascii_view); diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h index 6af8b27d366..f88844adae1 100644 --- a/drivers/s390/cio/cio_debug.h +++ b/drivers/s390/cio/cio_debug.h @@ -3,6 +3,11 @@ #include <asm/debug.h> +/* for use of debug feature */ +extern debug_info_t *cio_debug_msg_id; +extern debug_info_t *cio_debug_trace_id; +extern debug_info_t *cio_debug_crw_id; + #define CIO_TRACE_EVENT(imp, txt) do { \ debug_text_event(cio_debug_trace_id, imp, txt); \ } while (0) @@ -15,18 +20,19 @@ debug_sprintf_event(cio_debug_crw_id, imp , ##args); \ } while (0) -#define CIO_HEX_EVENT(imp, args...) do { \ - debug_event(cio_debug_trace_id, imp, ##args); \ - } while (0) +static inline void +CIO_HEX_EVENT(int level, void *data, int length) +{ + while (length > 0) { + debug_event(cio_debug_trace_id, level, data, length); + length -= cio_debug_trace_id->buf_size; + data += cio_debug_trace_id->buf_size; + } +} #define CIO_DEBUG(printk_level,event_level,msg...) ({ \ if (cio_show_msg) printk(printk_level msg); \ CIO_MSG_EVENT (event_level, msg); \ }) -/* for use of debug feature */ -extern debug_info_t *cio_debug_msg_id; -extern debug_info_t *cio_debug_trace_id; -extern debug_info_t *cio_debug_crw_id; - #endif diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 814f9258ce0..96f519281d9 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -38,6 +38,7 @@ #include <linux/kernel.h> #include <linux/proc_fs.h> #include <linux/timer.h> +#include <linux/mempool.h> #include <asm/ccwdev.h> #include <asm/io.h> @@ -80,6 +81,8 @@ static int indicator_used[INDICATORS_PER_CACHELINE]; static __u32 * volatile indicators; static __u32 volatile spare_indicator; static atomic_t spare_indicator_usecount; +#define QDIO_MEMPOOL_SCSSC_ELEMENTS 2 +static mempool_t *qdio_mempool_scssc; static debug_info_t *qdio_dbf_setup; static debug_info_t *qdio_dbf_sbal; @@ -1637,7 +1640,7 @@ next: } kfree(irq_ptr->qdr); - kfree(irq_ptr); + free_page((unsigned long) irq_ptr); } static void @@ -2304,7 +2307,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) QDIO_DBF_TEXT0(0,setup,"getssqd"); qdioac = 0; - ssqd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + ssqd_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!ssqd_area) { QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \ "SIGAs for sch x%x.\n", irq_ptr->schid.sch_no); @@ -2364,7 +2367,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) out: qdio_check_subchannel_qebsm(irq_ptr, qdioac, ssqd_area->sch_token); - free_page ((unsigned long) ssqd_area); + mempool_free(ssqd_area, qdio_mempool_scssc); irq_ptr->qdioac = qdioac; } @@ -2458,7 +2461,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero) virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind); } - scssc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + scssc_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!scssc_area) { QDIO_PRINT_WARN("No memory for setting indicators on " \ "subchannel 0.%x.%x.\n", @@ -2514,7 +2517,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero) QDIO_DBF_HEX2(0,setup,&real_addr_dev_st_chg_ind,sizeof(unsigned long)); result = 0; out: - free_page ((unsigned long) scssc_area); + mempool_free(scssc_area, qdio_mempool_scssc); return result; } @@ -2543,7 +2546,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target) if (!irq_ptr->is_thinint_irq) return -ENODEV; - scsscf_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + scsscf_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!scsscf_area) { QDIO_PRINT_WARN("No memory for setting delay target on " \ "subchannel 0.%x.%x.\n", @@ -2581,7 +2584,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target) QDIO_DBF_HEX2(0,trace,&delay_target,sizeof(unsigned long)); result = 0; /* not critical */ out: - free_page ((unsigned long) scsscf_area); + mempool_free(scsscf_area, qdio_mempool_scssc); return result; } @@ -2980,7 +2983,7 @@ qdio_allocate(struct qdio_initialize *init_data) qdio_allocate_do_dbf(init_data); /* create irq */ - irq_ptr = kzalloc(sizeof(struct qdio_irq), GFP_KERNEL | GFP_DMA); + irq_ptr = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); QDIO_DBF_TEXT0(0,setup,"irq_ptr:"); QDIO_DBF_HEX0(0,setup,&irq_ptr,sizeof(void*)); @@ -2995,7 +2998,7 @@ qdio_allocate(struct qdio_initialize *init_data) /* QDR must be in DMA area since CCW data address is only 32 bit */ irq_ptr->qdr=kmalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA); if (!(irq_ptr->qdr)) { - kfree(irq_ptr); + free_page((unsigned long) irq_ptr); QDIO_PRINT_ERR("kmalloc of irq_ptr->qdr failed!\n"); return -ENOMEM; } @@ -3780,6 +3783,16 @@ oom: return -ENOMEM; } +static void *qdio_mempool_alloc(gfp_t gfp_mask, void *size) +{ + return (void *) get_zeroed_page(gfp_mask|GFP_DMA); +} + +static void qdio_mempool_free(void *element, void *size) +{ + free_page((unsigned long) element); +} + static int __init init_QDIO(void) { @@ -3809,6 +3822,10 @@ init_QDIO(void) qdio_add_procfs_entry(); + qdio_mempool_scssc = mempool_create(QDIO_MEMPOOL_SCSSC_ELEMENTS, + qdio_mempool_alloc, + qdio_mempool_free, NULL); + if (tiqdio_check_chsc_availability()) QDIO_PRINT_ERR("Not all CHSCs supported. Continuing.\n"); @@ -3824,6 +3841,7 @@ cleanup_QDIO(void) qdio_remove_procfs_entry(); qdio_release_qdio_memory(); qdio_unregister_dbf_views(); + mempool_destroy(qdio_mempool_scssc); printk("qdio: %s: module removed\n",version); } |