From da97592635bbee01f72d76659d00720a62fa2d04 Mon Sep 17 00:00:00 2001 From: Xueming Li Date: Thu, 11 Mar 2021 13:13:29 +0000 Subject: [PATCH] ethdev: support PF index in representor 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 PF type representor is supported by using standalone 'pf' section: representor=pf1 - PF representor Signed-off-by: Xueming Li Acked-by: Viacheslav Ovsiienko Acked-by: Thomas Monjalon Acked-by: Andrew Rybchenko --- doc/guides/prog_guide/poll_mode_drv.rst | 3 +++ doc/guides/rel_notes/release_21_05.rst | 6 ++++-- lib/librte_ethdev/ethdev_private.c | 19 +++++++++++++++++-- lib/librte_ethdev/rte_ethdev.h | 1 + 4 files changed, 25 insertions(+), 4 deletions(-) diff --git a/doc/guides/prog_guide/poll_mode_drv.rst b/doc/guides/prog_guide/poll_mode_drv.rst index 063a4680df..0d4ac77a7c 100644 --- a/doc/guides/prog_guide/poll_mode_drv.rst +++ b/doc/guides/prog_guide/poll_mode_drv.rst @@ -382,6 +382,9 @@ 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] + -a DBDF,representor=pf1 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/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst index 88dd20c4dd..e4965e4d59 100644 --- a/doc/guides/rel_notes/release_21_05.rst +++ b/doc/guides/rel_notes/release_21_05.rst @@ -57,11 +57,13 @@ New Features * **Enhanced ethdev representor syntax.** - * Introduced representor type of VF, SF. + * Introduced representor type of VF, SF and PF. * Supported sub-function in representor syntax:: representor=# [0,2-4] /* Legacy VF compatible. */ - representor=sf# sf[0,2-1023] /* 1023 SFs. */ + representor=[pf#]vf# pf2vf3 /* VF 3 on PF 2. */ + representor=[pf#]sf# sf[0,2-1023] /* 1023 SFs. */ + representor=pf# pf[0,1] /* 2 PFs. */ * **Updated Broadcom bnxt driver.** diff --git a/lib/librte_ethdev/ethdev_private.c b/lib/librte_ethdev/ethdev_private.c index 13c191192e..35a57c56ec 100644 --- a/lib/librte_ethdev/ethdev_private.c +++ b/lib/librte_ethdev/ethdev_private.c @@ -118,8 +118,9 @@ 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 + * pf#: PF port representor/s * * Examples of #: * 2 - single @@ -131,6 +132,14 @@ 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_DIM(eth_da->ports)); + if (str == NULL || str[0] == '\0') + goto done; + } if (str[0] == 'v' && str[1] == 'f') { eth_da->type = RTE_ETH_REPRESENTOR_VF; str += 2; @@ -138,11 +147,17 @@ rte_eth_devargs_parse_representor_ports(char *str, void *data) eth_da->type = RTE_ETH_REPRESENTOR_SF; str += 2; } else { + /* 'pf' must followed by 'vf' or 'sf'. */ + if (eth_da->type == RTE_ETH_REPRESENTOR_PF) { + str = NULL; + goto done; + } eth_da->type = RTE_ETH_REPRESENTOR_VF; } str = rte_eth_devargs_process_list(str, eth_da->representor_ports, ð_da->nb_representor_ports, RTE_DIM(eth_da->representor_ports)); +done: if (str == NULL) RTE_LOG(ERR, EAL, "wrong representor format: %s\n", str); return str == NULL ? -1 : 0; diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h index 26b5e109c3..9cd519bf59 100644 --- a/lib/librte_ethdev/rte_ethdev.h +++ b/lib/librte_ethdev/rte_ethdev.h @@ -1513,6 +1513,7 @@ enum rte_eth_representor_type { RTE_ETH_REPRESENTOR_NONE, /**< not a representor. */ RTE_ETH_REPRESENTOR_VF, /**< representor of Virtual Function. */ RTE_ETH_REPRESENTOR_SF, /**< representor of Sub Function. */ + RTE_ETH_REPRESENTOR_PF, /**< representor of Physical Function. */ }; /** -- 2.20.1