[dpdk-dev] [PATCH v4 5/9] ethdev: support PF index in representor
From: Xueming Li <hidden>
Date: 2021-01-18 11:17:32
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
With Kernel bonding, multiple underlying PFs are bonded, VFs come from different PF, need to identify representor of VFs unambiguously by adding PF index. This patch introduces optional 'pf' section to representor devargs syntax, examples: representor=pf0vf0 - single VF representor representor=pf[0-1]sf[0-1023] - SF representors from 2 PFs Signed-off-by: Xueming Li <redacted> Acked-by: Viacheslav Ovsiienko <redacted> --- doc/guides/prog_guide/poll_mode_drv.rst | 2 ++ lib/librte_ethdev/ethdev_private.c | 13 +++++++++++-- 2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/doc/guides/prog_guide/poll_mode_drv.rst b/doc/guides/prog_guide/poll_mode_drv.rst
index 86e5867f1b..b2147aad30 100644
--- a/doc/guides/prog_guide/poll_mode_drv.rst
+++ b/doc/guides/prog_guide/poll_mode_drv.rst@@ -382,6 +382,8 @@ parameters to those ports. -a DBDF,representor=sf[1,3,5] -a DBDF,representor=sf[0-1023] -a DBDF,representor=sf[0,2-4,7,9-11] + -a DBDF,representor=pf1vf0 + -a DBDF,representor=pf[0-1]sf[0-127] Note: PMDs are not required to support the standard device arguments and users should consult the relevant PMD documentation to see support devargs.
diff --git a/lib/librte_ethdev/ethdev_private.c b/lib/librte_ethdev/ethdev_private.c
index 170b3ef067..f81423ceb8 100644
--- a/lib/librte_ethdev/ethdev_private.c
+++ b/lib/librte_ethdev/ethdev_private.c@@ -108,14 +108,22 @@ rte_eth_devargs_process_list(char *str, uint16_t *list, uint16_t *len_list, /* * representor format: * #: range or single number of VF representor - legacy - * vf#: VF port representor/s - * sf#: SF port representor/s + * [pf#]vf#: VF port representor/s + * [pf#]sf#: SF port representor/s */ int rte_eth_devargs_parse_representor_ports(char *str, void *data) { struct rte_eth_devargs *eth_da = data; + if (str[0] == 'p' && str[1] == 'f') { + eth_da->type = RTE_ETH_REPRESENTOR_PF; + str += 2; + str = rte_eth_devargs_process_list(str, eth_da->ports, + ð_da->nb_ports, RTE_MAX_ETHPORTS); + if (str == NULL) + goto err; + } if (str[0] == 'v' && str[1] == 'f') { eth_da->type = RTE_ETH_REPRESENTOR_VF; str += 2;
@@ -127,6 +135,7 @@ rte_eth_devargs_parse_representor_ports(char *str, void *data) } str = rte_eth_devargs_process_list(str, eth_da->representor_ports, ð_da->nb_representor_ports, RTE_MAX_ETHPORTS); +err: if (str == NULL) RTE_LOG(ERR, EAL, "wrong representor format: %s\n", str); return str == NULL ? -1 : 0;
--
2.25.1