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ehea: DLPAR memory add fix

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Due to stability issues in high load situations the HW queue handling
has to be changed. The HW queues are now stopped and restarted again instead
of destroying and allocating new HW queues.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jan-Bernd Themann
2007-10-01 16:33:18 +02:00
committed by David S. Miller
parent 31a5bb04d5
commit 2c69448bbc
5 changed files with 260 additions and 47 deletions
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20
drivers/net/ehea/ehea_qmr.c
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@ -563,8 +563,7 @@ int ehea_destroy_qp(struct ehea_qp *qp)
int ehea_create_busmap( void )
{
u64 vaddr = EHEA_BUSMAP_START;
unsigned long abs_max_pfn = 0;
unsigned long sec_max_pfn;
unsigned long high_section_index = 0;
int i;
/*
@ -574,14 +573,10 @@ int ehea_create_busmap( void )
ehea_bmap.valid_sections = 0;
for (i = 0; i < NR_MEM_SECTIONS; i++)
if (valid_section_nr(i)) {
sec_max_pfn = section_nr_to_pfn(i);
if (sec_max_pfn > abs_max_pfn)
abs_max_pfn = sec_max_pfn;
ehea_bmap.valid_sections++;
}
if (valid_section_nr(i))
high_section_index = i;
ehea_bmap.entries = abs_max_pfn / EHEA_PAGES_PER_SECTION + 1;
ehea_bmap.entries = high_section_index + 1;
ehea_bmap.vaddr = vmalloc(ehea_bmap.entries * sizeof(*ehea_bmap.vaddr));
if (!ehea_bmap.vaddr)
@ -593,6 +588,7 @@ int ehea_create_busmap( void )
if (pfn_valid(pfn)) {
ehea_bmap.vaddr[i] = vaddr;
vaddr += EHEA_SECTSIZE;
ehea_bmap.valid_sections++;
} else
ehea_bmap.vaddr[i] = 0;
}
@ -637,7 +633,7 @@ int ehea_reg_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr)
mr_len = ehea_bmap.valid_sections * EHEA_SECTSIZE;
pt = kzalloc(EHEA_MAX_RPAGE * sizeof(u64), GFP_KERNEL);
pt = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (!pt) {
ehea_error("no mem");
ret = -ENOMEM;
@ -660,8 +656,8 @@ int ehea_reg_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr)
void *sectbase = __va(i << SECTION_SIZE_BITS);
unsigned long k = 0;
for (j = 0; j < (PAGES_PER_SECTION / EHEA_MAX_RPAGE);
j++) {
for (j = 0; j < (EHEA_PAGES_PER_SECTION /
EHEA_MAX_RPAGE); j++) {
for (m = 0; m < EHEA_MAX_RPAGE; m++) {
pg = sectbase + ((k++) * EHEA_PAGESIZE);