From e157ea30606743f2bfa2ec445a0bb0839e17271b Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Tue, 3 Jun 2014 23:50:22 +0000 Subject: [PATCH] i40e/i40evf: Update RSS configuration This patch changes the RSS configuration to set table size and write to hardware to confirm RSS table size being used. Change-ID: I455a4c09c9dd479f5791ee1f09fdc83ff9908df5 Signed-off-by: Carolyn Wyborny Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e.h | 1 + drivers/net/ethernet/intel/i40e/i40e_common.c | 7 +------ drivers/net/ethernet/intel/i40e/i40e_main.c | 14 +++++++++++++- drivers/net/ethernet/intel/i40e/i40e_type.h | 3 +++ drivers/net/ethernet/intel/i40evf/i40e_type.h | 3 +++ 5 files changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 60f9a73303ba..817e179dc3f9 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -350,6 +350,7 @@ struct i40e_pf { u32 rx_hwtstamp_cleared; bool ptp_tx; bool ptp_rx; + u16 rss_table_size; }; struct i40e_mac_filter { diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index 6e65f19dd6e5..a51bba634718 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -1839,7 +1839,6 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff, struct i40e_aqc_list_capabilities_element_resp *cap; u32 number, logical_id, phys_id; struct i40e_hw_capabilities *p; - u32 reg_val; u32 i = 0; u16 id; @@ -1910,11 +1909,7 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff, break; case I40E_DEV_FUNC_CAP_RSS: p->rss = true; - reg_val = rd32(hw, I40E_PFQF_CTL_0); - if (reg_val & I40E_PFQF_CTL_0_HASHLUTSIZE_MASK) - p->rss_table_size = number; - else - p->rss_table_size = 128; + p->rss_table_size = number; p->rss_table_entry_width = logical_id; break; case I40E_DEV_FUNC_CAP_RX_QUEUES: diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index ebbf37bc367e..34310bd116b2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -6599,6 +6599,7 @@ static int i40e_config_rss(struct i40e_pf *pf) u32 lut = 0; int i, j; u64 hena; + u32 reg_val; /* Fill out hash function seed */ for (i = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) @@ -6611,8 +6612,19 @@ static int i40e_config_rss(struct i40e_pf *pf) wr32(hw, I40E_PFQF_HENA(0), (u32)hena); wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); + /* Check capability and Set table size and register per hw expectation*/ + reg_val = rd32(hw, I40E_PFQF_CTL_0); + if (hw->func_caps.rss_table_size == 512) { + reg_val |= I40E_PFQF_CTL_0_HASHLUTSIZE_512; + pf->rss_table_size = 512; + } else { + pf->rss_table_size = 128; + reg_val &= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512; + } + wr32(hw, I40E_PFQF_CTL_0, reg_val); + /* Populate the LUT with max no. of queues in round robin fashion */ - for (i = 0, j = 0; i < pf->hw.func_caps.rss_table_size; i++, j++) { + for (i = 0, j = 0; i < pf->rss_table_size; i++, j++) { /* The assumption is that lan qp count will be the highest * qp count for any PF VSI that needs RSS. diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h index a688ab86f650..1c0d5a70b892 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_type.h +++ b/drivers/net/ethernet/intel/i40e/i40e_type.h @@ -1165,4 +1165,7 @@ enum i40e_reset_type { I40E_RESET_GLOBR = 2, I40E_RESET_EMPR = 3, }; + +/* RSS Hash Table Size */ +#define I40E_PFQF_CTL_0_HASHLUTSIZE_512 0x00010000 #endif /* _I40E_TYPE_H_ */ diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h index 4a2e48af2887..9c835786e8a1 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_type.h +++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h @@ -1165,4 +1165,7 @@ enum i40e_reset_type { I40E_RESET_GLOBR = 2, I40E_RESET_EMPR = 3, }; + +/* RSS Hash Table Size */ +#define I40E_PFQF_CTL_0_HASHLUTSIZE_512 0x00010000 #endif /* _I40E_TYPE_H_ */ -- 2.30.2