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ice: Add support for VLANs and offloads

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This patch adds support for VLANs. When a VLAN is created a switch filter
is added to direct the VLAN traffic to the corresponding VSI. When a VLAN
is deleted, the filter is deleted as well.

This patch also adds support for the following hardware offloads.
    1) VLAN tag insertion/stripping
    2) Receive Side Scaling (RSS)
    3) Tx checksum and TCP segmentation
    4) Rx checksum

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anirudh Venkataramanan
2018-03-20 07:58:15 -07:00
committed by Jeff Kirsher
parent 2b245cb294
commit d76a60ba7a
10 changed files with 1631 additions and 16 deletions
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19
drivers/net/ethernet/intel/ice/ice.h
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@@ -23,7 +23,10 @@
#include <linux/delay.h>
#include <linux/bitmap.h>
#include <linux/log2.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/if_bridge.h>
#include <net/ipv6.h>
#include "ice_devids.h"
#include "ice_type.h"
#include "ice_txrx.h"
@@ -47,6 +50,8 @@
#define ICE_MAX_SCATTER_RXQS 16
#define ICE_Q_WAIT_RETRY_LIMIT 10
#define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT)
#define ICE_MAX_LG_RSS_QS 256
#define ICE_MAX_SMALL_RSS_QS 8
#define ICE_RES_VALID_BIT 0x8000
#define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1)
#define ICE_INVAL_Q_INDEX 0xffff
@@ -62,6 +67,7 @@
#define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i]))
#define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
#define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i]))
#define ice_for_each_txq(vsi, i) \
for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
@@ -113,6 +119,7 @@ struct ice_vsi {
irqreturn_t (*irq_handler)(int irq, void *data);
DECLARE_BITMAP(state, __ICE_STATE_NBITS);
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
int num_q_vectors;
int base_vector;
enum ice_vsi_type type;
@@ -122,6 +129,13 @@ struct ice_vsi {
/* Interrupt thresholds */
u16 work_lmt;
/* RSS config */
u16 rss_table_size; /* HW RSS table size */
u16 rss_size; /* Allocated RSS queues */
u8 *rss_hkey_user; /* User configured hash keys */
u8 *rss_lut_user; /* User configured lookup table entries */
u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */
u16 max_frame;
u16 rx_buf_len;
@@ -181,6 +195,7 @@ struct ice_pf {
struct mutex avail_q_mutex; /* protects access to avail_[rx|tx]qs */
struct mutex sw_mutex; /* lock for protecting VSI alloc flow */
u32 msg_enable;
u32 hw_csum_rx_error;
u32 oicr_idx; /* Other interrupt cause vector index */
u32 num_lan_msix; /* Total MSIX vectors for base driver */
u32 num_avail_msix; /* remaining MSIX vectors left unclaimed */
@@ -224,4 +239,8 @@ static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
wr32(hw, GLINT_DYN_CTL(vector), val);
}
int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size);
#endif /* _ICE_H_ */