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i40e/i40evf: Update RSS configuration

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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@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Carolyn Wyborny 2014-06-03 23:50:22 +00:00 committed by Jeff Kirsher
parent cc70b080ea
commit e157ea3060
5 changed files with 21 additions and 7 deletions
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1
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -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 {

7
drivers/net/ethernet/intel/i40e/i40e_common.c
View File

@ -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:

14
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -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.

3
drivers/net/ethernet/intel/i40e/i40e_type.h
View File

@ -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_ */

3
drivers/net/ethernet/intel/i40evf/i40e_type.h
View File

@ -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_ */