From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Harry van Haaren <harry.van.haaren@intel.com>
Cc: dev@dpdk.org, thomas@monjalon.net, keith.wiles@intel.com,
bruce.richardson@intel.com
Subject: Re: [dpdk-dev] [PATCH v3 3/7] service cores: coremask parsing
Date: Tue, 4 Jul 2017 18:15:49 +0530 [thread overview]
Message-ID: <20170704124548.GB14921@jerin> (raw)
In-Reply-To: <1499031314-7172-4-git-send-email-harry.van.haaren@intel.com>
-----Original Message-----
> Date: Sun, 2 Jul 2017 22:35:10 +0100
> From: Harry van Haaren <harry.van.haaren@intel.com>
> To: dev@dpdk.org
> CC: jerin.jacob@caviumnetworks.com, thomas@monjalon.net,
> keith.wiles@intel.com, bruce.richardson@intel.com, Harry van Haaren
> <harry.van.haaren@intel.com>
> Subject: [PATCH v3 3/7] service cores: coremask parsing
> X-Mailer: git-send-email 2.7.4
>
> Add logic for parsing a coremask from EAL, which allows
> the application to be unaware of the cores being taken from
> its coremask.
>
> Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
>
> diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
> index f470195..cee200c 100644
> --- a/lib/librte_eal/common/eal_common_options.c
> +++ b/lib/librte_eal/common/eal_common_options.c
> @@ -61,6 +61,7 @@ const char
> eal_short_options[] =
> "b:" /* pci-blacklist */
> "c:" /* coremask */
> + "s:" /* service coremask */
> "d:" /* driver */
> "h" /* help */
> "l:" /* corelist */
> @@ -267,6 +268,73 @@ static int xdigit2val(unsigned char c)
> }
Missing the --help update for service coremask details.
I think, EAL arguments are documented in another area of doc directory
as well. Update the documents.
>
> static int
> +eal_parse_service_coremask(const char *coremask)
> +{
> + struct rte_config *cfg = rte_eal_get_configuration();
> + int i, j, idx = 0;
> + unsigned int 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;
> +
> + 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) {
> + /* handle master lcore already parsed */
> + uint32_t lcore = idx;
> + if (master_lcore_parsed &&
> + cfg->master_lcore == lcore)
> + continue;
> +
> + if (!lcore_config[idx].detected) {
> + RTE_LOG(ERR, EAL,
> + "lcore %u unavailable\n", idx);
> + return -1;
> + }
> + lcore_config[idx].core_role = ROLE_SERVICE;
Why not to use rte_service_lcore_add(idx) here. So that in future some
changes we don't need to touch this file.
I added following code in unit testcase and I have 8 cores system. So I
was expecting cores prints from "0 3 4 5 6 7" as lcore 1 and 2 will be
stolen by service core. But it looks like RTE_LCORE_FOREACH not honoring
previous rte_service_lcore_add() functions.
testsuite_setup(void)
{
+ int i;
+ rte_service_lcore_add(1);
+ rte_service_lcore_add(2);
+
+ RTE_LCORE_FOREACH(i)
+ printf("cores %d\n", i);
next prev parent reply other threads:[~2017-07-04 12:46 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-23 9:06 [dpdk-dev] [PATCH 1/6] service cores: header and implementation Harry van Haaren
2017-06-23 9:06 ` [dpdk-dev] [PATCH 2/6] service cores: coremask parsing Harry van Haaren
2017-06-26 12:49 ` Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 3/6] service cores: EAL init changes Harry van Haaren
2017-06-26 12:55 ` Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 4/6] service cores: mark cores in lcore config as RTE Harry van Haaren
2017-06-23 9:06 ` [dpdk-dev] [PATCH 5/6] service core: add unit tests Harry van Haaren
2017-06-26 13:06 ` Jerin Jacob
2017-06-29 11:14 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 6/6] service cores: enable event/sw with service Harry van Haaren
2017-06-26 13:46 ` Jerin Jacob
2017-06-29 11:15 ` Van Haaren, Harry
2017-06-26 11:59 ` [dpdk-dev] [PATCH 1/6] service cores: header and implementation Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 0/5] service cores: cover letter Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 1/5] service cores: header and implementation Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 2/5] service cores: EAL init changes Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 3/5] service cores: coremask parsing Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 4/5] service cores: add unit tests Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 5/5] service cores: enable event/sw with service Harry van Haaren
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 0/7] service cores: cover letter Harry van Haaren
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 1/7] service cores: header and implementation Harry van Haaren
2017-07-04 17:16 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 2/7] service cores: EAL init changes Harry van Haaren
2017-07-04 11:35 ` Jerin Jacob
2017-07-07 16:28 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 3/7] service cores: coremask parsing Harry van Haaren
2017-07-04 12:45 ` Jerin Jacob [this message]
2017-07-06 14:47 ` Van Haaren, Harry
2017-07-07 10:45 ` Jerin Jacob
2017-07-07 10:57 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 4/7] service cores: add unit tests Harry van Haaren
2017-07-04 11:14 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 5/7] service cores: enable event/sw with service Harry van Haaren
2017-07-04 10:52 ` Jerin Jacob
2017-07-07 16:28 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 6/7] maintainers: claim service cores Harry van Haaren
2017-07-04 10:53 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 7/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-02 22:16 ` Mcnamara, John
2017-07-04 10:56 ` Jerin Jacob
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 0/7] service cores: cover letter Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 1/7] service cores: header and implementation Harry van Haaren
2017-07-11 8:29 ` Jerin Jacob
2017-07-11 9:54 ` Thomas Monjalon
2017-07-11 12:32 ` Van Haaren, Harry
2017-07-11 12:44 ` Jerin Jacob
2017-07-11 12:49 ` Van Haaren, Harry
2017-07-11 14:10 ` Van Haaren, Harry
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 2/7] service cores: EAL init changes Harry van Haaren
2017-07-11 7:42 ` Jerin Jacob
2017-07-11 14:11 ` Van Haaren, Harry
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 3/7] service cores: coremask parsing Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 4/7] service cores: add unit tests Harry van Haaren
2017-07-11 8:12 ` Jerin Jacob
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 5/7] event/sw: enable SW PMD with service capability Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 6/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 7/7] maintainers: claim service cores Harry van Haaren
2017-07-11 7:53 ` Jerin Jacob
2017-07-09 22:08 ` [dpdk-dev] [PATCH v4 0/7] service cores: cover letter Thomas Monjalon
2017-07-10 8:18 ` Van Haaren, Harry
2017-07-10 11:41 ` Jerin Jacob
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 " Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 1/7] service cores: header and implementation Harry van Haaren
2017-07-12 16:35 ` Jerin Jacob
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 2/7] service cores: EAL init changes Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 3/7] service cores: coremask parsing Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 4/7] service cores: add unit tests Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 5/7] event/sw: enable SW PMD with service capability Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 6/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 7/7] maintainers: claim service cores Harry van Haaren
2017-07-12 16:49 ` [dpdk-dev] [PATCH v5 0/7] service cores: cover letter Jerin Jacob
2017-07-16 19:25 ` Thomas Monjalon
2017-07-17 8:07 ` Van Haaren, Harry
2017-07-17 15:21 ` [dpdk-dev] [PATCH] service: add corelist to EAL arguments Harry van Haaren
2017-07-17 15:53 ` Ananyev, Konstantin
2017-07-17 15:58 ` Van Haaren, Harry
2017-07-17 16:10 ` Ananyev, Konstantin
2017-07-17 16:16 ` Van Haaren, Harry
2017-07-19 5:42 ` Thomas Monjalon
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