From 03fce3d0632be617068194dd186e50664b6878fb Mon Sep 17 00:00:00 2001 From: Helin Zhang Date: Sun, 16 Nov 2014 00:03:39 +0800 Subject: [PATCH] i40e: support setting hash lookup table size Add support of setting hash lookup table size according to the hardawre capability. Signed-off-by: Helin Zhang Acked-by: Konstantin Ananyev --- lib/librte_ether/rte_ethdev.h | 9 ++++++++- lib/librte_pmd_i40e/i40e_ethdev.c | 14 +++++++++++++- lib/librte_pmd_i40e/i40e_ethdev.h | 1 + 3 files changed, 22 insertions(+), 2 deletions(-) diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index c29525bdc0..2c8f129c9d 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -443,9 +443,16 @@ struct rte_eth_rss_conf { ETH_RSS_FRAG_IPV6 | \ ETH_RSS_L2_PAYLOAD) -/* Definitions used for redirection table entry size */ +/* + * Definitions used for redirection table entry size. + * Some RSS RETA sizes may not be supported by some drivers, check the + * documentation or the description of relevant functions for more details. + */ #define ETH_RSS_RETA_NUM_ENTRIES 128 #define ETH_RSS_RETA_MAX_QUEUE 16 +#define ETH_RSS_RETA_SIZE_64 64 +#define ETH_RSS_RETA_SIZE_128 128 +#define ETH_RSS_RETA_SIZE_512 512 /* Definitions used for VMDQ and DCB functionality */ #define ETH_VMDQ_MAX_VLAN_FILTERS 64 /**< Maximum nb. of VMDQ vlan filters. */ diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c index 5074262ab8..d90718e078 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.c +++ b/lib/librte_pmd_i40e/i40e_ethdev.c @@ -3195,7 +3195,19 @@ i40e_pf_setup(struct i40e_pf *pf) /* Configure filter control */ memset(&settings, 0, sizeof(settings)); - settings.hash_lut_size = I40E_HASH_LUT_SIZE_128; + if (hw->func_caps.rss_table_size == ETH_RSS_RETA_SIZE_128) + settings.hash_lut_size = I40E_HASH_LUT_SIZE_128; + else if (hw->func_caps.rss_table_size == ETH_RSS_RETA_SIZE_512) + settings.hash_lut_size = I40E_HASH_LUT_SIZE_512; + else { + PMD_DRV_LOG(ERR, "Hash lookup table size (%u) not supported\n", + hw->func_caps.rss_table_size); + return I40E_ERR_PARAM; + } + PMD_DRV_LOG(INFO, "Hardware capability of hash lookup table " + "size: %u\n", hw->func_caps.rss_table_size); + pf->hash_lut_size = hw->func_caps.rss_table_size; + /* Enable ethtype and macvlan filters */ settings.enable_ethtype = TRUE; settings.enable_macvlan = TRUE; diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h b/lib/librte_pmd_i40e/i40e_ethdev.h index 96361c2332..c7ad384289 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.h +++ b/lib/librte_pmd_i40e/i40e_ethdev.h @@ -270,6 +270,7 @@ struct i40e_pf { uint16_t vmdq_nb_qps; /* The number of queue pairs of VMDq */ uint16_t vf_nb_qps; /* The number of queue pairs of VF */ uint16_t fdir_nb_qps; /* The number of queue pairs of Flow Director */ + uint16_t hash_lut_size; /* The size of hash lookup table */ /* store VXLAN UDP ports */ uint16_t vxlan_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS]; -- 2.20.1