[dpdk-dev] [PATCH 2/6] service cores: coremask parsing

[Van Haaren, Harry]

> From: Jerin Jacob [mailto:jerin.jacob at caviumnetworks.com]

<snip>

> >  #include "eal_internal_cfg.h"
> >  #include "eal_options.h"
> > @@ -61,6 +62,7 @@ const char
> >  eal_short_options[] =
> >  	"b:" /* pci-blacklist */
> >  	"c:" /* coremask */
> > +	"s:" /* service coremask */
> >  	"d:" /* driver */
> >  	"h"  /* help */
> >  	"l:" /* corelist */
> 
> Good to have a corelist variant for service lcore list. May be for future.

Yep agreed.


> > @@ -267,6 +269,75 @@ static int xdigit2val(unsigned char c)
> >  }
> >
> >  static int
> > +eal_parse_service_coremask(const char *coremask)
> > +{
> > +	struct rte_config *cfg = rte_eal_get_configuration();
> > +	int i, j, idx = 0;
> > +	unsigned count = 0;
> > +	char c;
> > +	int val;
> > +
> > +	if (coremask == NULL)
> > +		return -1;
> > +	/* Remove all blank characters ahead and after .
> > +	 * Remove 0x/0X if exists.
> > +	 */
> > +	while (isblank(*coremask))
> > +		coremask++;
> > +	if (coremask[0] == '0' && ((coremask[1] == 'x')
> > +		|| (coremask[1] == 'X')))
> > +		coremask += 2;
> > +	i = strlen(coremask);
> > +	while ((i > 0) && isblank(coremask[i - 1]))
> > +		i--;
> > +
> > +	if (i == 0)
> > +		return -1;
> > +
> > +	printf("\n\nRemoving Service Cores from lcore roles now\n\n");
> 
> s/printf/RTE_LOG

Removed.


> > +	/* TODO: only scan active cores in coremask */
> > +	for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
> > +		c = coremask[i];
> > +		if (isxdigit(c) == 0) {
> > +			/* invalid characters */
> > +			return -1;
> > +		}
> > +		val = xdigit2val(c);
> > +		for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
> > +				j++, idx++) {
> > +			if ((1 << j) & val) {
> > +				/* TODO: enable flexible master core */
> > +				if (idx == 0)
> > +					continue;
> > +
> > +				if (!lcore_config[idx].detected) {
> > +					RTE_LOG(ERR, EAL,
> > +						"lcore %u unavailable\n", idx);
> > +					return -1;
> > +				}
> > +				//cfg->lcore_role[idx] = ROLE_SERVICE;
> 
> remove commented code.

Doh - thanks.

<snip>