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Date: Fri, 20 Jun 2014 00:49:46 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Carolyn Wyborny <carolyn.wyborny@...el.com>,
netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 11/13] i40e/i40evf: Update RSS configuration
From: Carolyn Wyborny <carolyn.wyborny@...el.com>
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 <carolyn.wyborny@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
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 60f9a73..817e179 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 6e65f19..a51bba6 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 ebbf37b..34310bd 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 a688ab8..1c0d5a7 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 4a2e48a..9c83578 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_ */
--
1.9.3
--
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