Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2018-10-02

This series contains updates to ice driver only.

Anirudh expands the use of VSI handles across the rest of the driver,
which includes refactoring the code to correctly use VSI handles.  After
a reset, ensure that all configurations for a VSI get re-applied before
moving on to rebuilding the next VSI.

Dave fixed the driver to check the current link state after reset to
ensure that the correct link state of a port is reported.  Fixed an
issue where if the driver is unloaded when traffic is in progress,
errors are generated.

Preethi breaks up the IRQ tracker into a software and hardware IRQ
tracker, where the software IRQ tracker tracks only the PF's IRQ
requests and does not play any role in the VF initialization.  The
hardware IRQ tracker represents the device's interrupt space and will be
looked up to see if the device has run our of interrupts when a
interrupt has to be allocated in the device for either PF or VF.

Md Fahad adds support for enabling/disabling RSS via ethtool.

Brett aligns the ice_reset_req enum values to the values that the
hardware understands.  Also added initial support for dynamic interrupt
moderation in the ice driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ice/ice.h

@@ -172,7 +172,8 @@ struct ice_vsi {
 	u32 rx_buf_failed;
 	u32 rx_page_failed;
 	int num_q_vectors;
-	int base_vector;
+	int sw_base_vector;		/* Irq base for OS reserved vectors */
+	int hw_base_vector;		/* HW (absolute) index of a vector */
 	enum ice_vsi_type type;
 	u16 vsi_num;			 /* HW (absolute) index of this VSI */
 	u16 idx;			 /* software index in pf->vsi[] */
@@ -229,6 +230,10 @@ struct ice_q_vector {
 	u8 num_ring_tx;			/* total number of tx rings in vector */
 	u8 num_ring_rx;			/* total number of rx rings in vector */
 	char name[ICE_INT_NAME_STR_LEN];
+	/* in usecs, need to use ice_intrl_to_usecs_reg() before writing this
+	 * value to the device
+	 */
+	u8 intrl;
 } ____cacheline_internodealigned_in_smp;
 
 enum ice_pf_flags {
@@ -240,8 +245,14 @@ enum ice_pf_flags {
 
 struct ice_pf {
 	struct pci_dev *pdev;
+
+	/* OS reserved IRQ details */
 	struct msix_entry *msix_entries;
-	struct ice_res_tracker *irq_tracker;
+	struct ice_res_tracker *sw_irq_tracker;
+
+	/* HW reserved Interrupts for this PF */
+	struct ice_res_tracker *hw_irq_tracker;
+
 	struct ice_vsi **vsi;		/* VSIs created by the driver */
 	struct ice_sw *first_sw;	/* first switch created by firmware */
 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
@@ -256,9 +267,11 @@ struct ice_pf {
 	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 sw_oicr_idx;	/* Other interrupt cause SW vector index */
+	u32 num_avail_sw_msix;	/* remaining MSIX SW vectors left unclaimed */
+	u32 hw_oicr_idx;	/* Other interrupt cause vector HW index */
+	u32 num_avail_hw_msix;	/* remaining HW MSIX vectors left unclaimed */
 	u32 num_lan_msix;	/* Total MSIX vectors for base driver */
-	u32 num_avail_msix;	/* remaining MSIX vectors left unclaimed */
 	u16 num_lan_tx;		/* num lan tx queues setup */
 	u16 num_lan_rx;		/* num lan rx queues setup */
 	u16 q_left_tx;		/* remaining num tx queues left unclaimed */
@@ -293,8 +306,8 @@ struct ice_netdev_priv {
 static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
 				       struct ice_q_vector *q_vector)
 {
-	u32 vector = (vsi && q_vector) ? vsi->base_vector + q_vector->v_idx :
-					((struct ice_pf *)hw->back)->oicr_idx;
+	u32 vector = (vsi && q_vector) ? vsi->hw_base_vector + q_vector->v_idx :
+				((struct ice_pf *)hw->back)->hw_oicr_idx;
 	int itr = ICE_ITR_NONE;
 	u32 val;
 

drivers/net/ethernet/intel/ice/ice_common.h

@@ -21,6 +21,7 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
 		  struct ice_rq_event_info *e, u16 *pending);
 enum ice_status
 ice_get_link_status(struct ice_port_info *pi, bool *link_up);
+enum ice_status ice_update_link_info(struct ice_port_info *pi);
 enum ice_status
 ice_acquire_res(struct ice_hw *hw, enum ice_aq_res_ids res,
 		enum ice_aq_res_access_type access, u32 timeout);
@@ -37,17 +38,18 @@ ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
 		  u32 rxq_index);
 
 enum ice_status
-ice_aq_get_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut,
+ice_aq_get_rss_lut(struct ice_hw *hw, u16 vsi_handle, u8 lut_type, u8 *lut,
 		   u16 lut_size);
 enum ice_status
-ice_aq_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut,
+ice_aq_set_rss_lut(struct ice_hw *hw, u16 vsi_handle, u8 lut_type, u8 *lut,
 		   u16 lut_size);
 enum ice_status
-ice_aq_get_rss_key(struct ice_hw *hw, u16 vsi_id,
+ice_aq_get_rss_key(struct ice_hw *hw, u16 vsi_handle,
 		   struct ice_aqc_get_set_rss_keys *keys);
 enum ice_status
-ice_aq_set_rss_key(struct ice_hw *hw, u16 vsi_id,
+ice_aq_set_rss_key(struct ice_hw *hw, u16 vsi_handle,
 		   struct ice_aqc_get_set_rss_keys *keys);
+
 bool ice_check_sq_alive(struct ice_hw *hw, struct ice_ctl_q_info *cq);
 enum ice_status ice_aq_q_shutdown(struct ice_hw *hw, bool unloading);
 void ice_fill_dflt_direct_cmd_desc(struct ice_aq_desc *desc, u16 opcode);
@@ -89,12 +91,14 @@ enum ice_status
 ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids,
 		u32 *q_teids, struct ice_sq_cd *cmd_details);
 enum ice_status
-ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap,
+ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_handle, u8 tc_bitmap,
 		u16 *max_lanqs);
 enum ice_status
-ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps,
+ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u8 num_qgrps,
 		struct ice_aqc_add_tx_qgrp *buf, u16 buf_size,
 		struct ice_sq_cd *cd);
+enum ice_status ice_replay_vsi(struct ice_hw *hw, u16 vsi_handle);
+void ice_replay_post(struct ice_hw *hw);
 void ice_output_fw_log(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf);
 void ice_stat_update40(struct ice_hw *hw, u32 hireg, u32 loreg,
 		       bool prev_stat_loaded, u64 *prev_stat, u64 *cur_stat);

drivers/net/ethernet/intel/ice/ice_hw_autogen.h

@@ -88,6 +88,8 @@
 #define GLINT_DYN_CTL_SW_ITR_INDX_M		ICE_M(0x3, 25)
 #define GLINT_DYN_CTL_INTENA_MSK_M		BIT(31)
 #define GLINT_ITR(_i, _INT)			(0x00154000 + ((_i) * 8192 + (_INT) * 4))
+#define GLINT_RATE(_INT)			(0x0015A000 + ((_INT) * 4))
+#define GLINT_RATE_INTRL_ENA_M			BIT(6)
 #define PFINT_FW_CTL				0x0016C800
 #define PFINT_FW_CTL_MSIX_INDX_M		ICE_M(0x7FF, 0)
 #define PFINT_FW_CTL_ITR_INDX_S			11
@@ -173,6 +175,9 @@
 #define PF_FUNC_RID				0x0009E880
 #define PF_FUNC_RID_FUNC_NUM_S			0
 #define PF_FUNC_RID_FUNC_NUM_M			ICE_M(0x7, 0)
+#define GL_PWR_MODE_CTL				0x000B820C
+#define GL_PWR_MODE_CTL_CAR_MAX_BW_S		30
+#define GL_PWR_MODE_CTL_CAR_MAX_BW_M		ICE_M(0x3, 30)
 #define GLPRT_BPRCH(_i)				(0x00381384 + ((_i) * 8))
 #define GLPRT_BPRCL(_i)				(0x00381380 + ((_i) * 8))
 #define GLPRT_BPTCH(_i)				(0x00381244 + ((_i) * 8))

drivers/net/ethernet/intel/ice/ice_lib.h

@@ -70,5 +70,7 @@ void ice_vsi_free_tx_rings(struct ice_vsi *vsi);
 
 int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc);
 
+int ice_vsi_manage_rss_lut(struct ice_vsi *vsi, bool ena);
+
 irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data);
 #endif /* !_ICE_LIB_H_ */

drivers/net/ethernet/intel/ice/ice_sched.h

@@ -12,7 +12,6 @@
 struct ice_sched_agg_vsi_info {
 	struct list_head list_entry;
 	DECLARE_BITMAP(tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
-	u16 vsi_id;
 };
 
 struct ice_sched_agg_info {
@@ -35,9 +34,9 @@ ice_sched_add_node(struct ice_port_info *pi, u8 layer,
 void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node);
 struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc);
 struct ice_sched_node *
-ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc,
+ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
 			   u8 owner);
 enum ice_status
-ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_id, u8 tc, u16 maxqs,
+ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u16 maxqs,
 		  u8 owner, bool enable);
 #endif /* _ICE_SCHED_H_ */

drivers/net/ethernet/intel/ice/ice_switch.h

@@ -17,6 +17,7 @@ struct ice_vsi_ctx {
 	u16 vsis_unallocated;
 	u16 flags;
 	struct ice_aqc_vsi_props info;
+	struct ice_sched_vsi_info sched;
 	u8 alloc_from_pool;
 };
 
@@ -42,6 +43,14 @@ enum ice_sw_lkup_type {
 	ICE_SW_LKUP_LAST
 };
 
+/* type of filter src id */
+enum ice_src_id {
+	ICE_SRC_ID_UNKNOWN = 0,
+	ICE_SRC_ID_VSI,
+	ICE_SRC_ID_QUEUE,
+	ICE_SRC_ID_LPORT,
+};
+
 struct ice_fltr_info {
 	/* Look up information: how to look up packet */
 	enum ice_sw_lkup_type lkup_type;
@@ -56,6 +65,7 @@ struct ice_fltr_info {
 
 	/* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
 	u16 src;
+	enum ice_src_id src_id;
 
 	union {
 		struct {
@@ -77,7 +87,10 @@ struct ice_fltr_info {
 			u16 ethertype;
 			u8 mac_addr[ETH_ALEN]; /* optional */
 		} ethertype_mac;
-	} l_data;
+	} l_data; /* Make sure to zero out the memory of l_data before using
+		   * it or only set the data associated with lookup match
+		   * rest everything should be zero
+		   */
 
 	/* Depending on filter action */
 	union {
@@ -85,12 +98,16 @@ struct ice_fltr_info {
 		 * queue id in case of ICE_FWD_TO_QGRP.
 		 */
 		u16 q_id:11;
-		u16 vsi_id:10;
+		u16 hw_vsi_id:10;
 		u16 vsi_list_id:10;
 	} fwd_id;
 
+	/* Sw VSI handle */
+	u16 vsi_handle;
+
 	/* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
-	 * determines the range of queues the packet needs to be forwarded to
+	 * determines the range of queues the packet needs to be forwarded to.
+	 * Note that qgrp_size must be set to a power of 2.
 	 */
 	u8 qgrp_size;
 
@@ -109,6 +126,7 @@ struct ice_sw_recipe {
 
 	/* List of type ice_fltr_mgmt_list_entry */
 	struct list_head filt_rules;
+	struct list_head filt_replay_rules;
 
 	/* linked list of type recipe_list_entry */
 	struct list_head rg_list;
@@ -129,6 +147,8 @@ struct ice_vsi_list_map_info {
 	struct list_head list_entry;
 	DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
 	u16 vsi_list_id;
+	/* counter to track how many rules are reusing this VSI list */
+	u16 ref_cnt;
 };
 
 struct ice_fltr_list_entry {
@@ -159,28 +179,33 @@ struct ice_fltr_mgmt_list_entry {
 
 /* VSI related commands */
 enum ice_status
-ice_aq_update_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
-		  struct ice_sq_cd *cd);
-enum ice_status
 ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 	    struct ice_sq_cd *cd);
 enum ice_status
 ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 	     bool keep_vsi_alloc, struct ice_sq_cd *cd);
+enum ice_status
+ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
+	       struct ice_sq_cd *cd);
+bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
+struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle);
 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw);
 
 /* Switch/bridge related commands */
 enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw);
 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
-void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_id);
+void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle);
 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
 enum ice_status ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
 enum ice_status
-ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_id, bool set, u8 direction);
-
-enum ice_status ice_replay_all_fltr(struct ice_hw *hw);
+ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction);
 
 enum ice_status ice_init_def_sw_recp(struct ice_hw *hw);
+u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);
+bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
+
+enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle);
+void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw);
 
 #endif /* _ICE_SWITCH_H_ */

drivers/net/ethernet/intel/ice/ice_txrx.h

@@ -104,10 +104,16 @@ enum ice_rx_dtype {
 #define ICE_RX_ITR	ICE_IDX_ITR0
 #define ICE_TX_ITR	ICE_IDX_ITR1
 #define ICE_ITR_DYNAMIC	0x8000  /* use top bit as a flag */
-#define ICE_ITR_8K	0x003E
+#define ICE_ITR_8K	125
+#define ICE_DFLT_TX_ITR	ICE_ITR_8K
+#define ICE_DFLT_RX_ITR	ICE_ITR_8K
+/* apply ITR granularity translation to program the register. itr_gran is either
+ * 2 or 4 usecs so we need to divide by 2 first then shift by that value
+ */
+#define ITR_TO_REG(val, itr_gran) (((val) & ~ICE_ITR_DYNAMIC) >> \
+				   ((itr_gran) / 2))
 
-/* apply ITR HW granularity translation to program the HW registers */
-#define ITR_TO_REG(val, itr_gran) (((val) & ~ICE_ITR_DYNAMIC) >> (itr_gran))
+#define ICE_DFLT_INTRL	0
 
 /* Legacy or Advanced Mode Queue */
 #define ICE_TX_ADVANCED	0
@@ -130,12 +136,11 @@ struct ice_ring {
 	u32 txq_teid;			/* Added Tx queue TEID */
 
 	/* high bit set means dynamic, use accessor routines to read/write.
-	 * hardware supports 2us/1us resolution for the ITR registers.
+	 * hardware supports 4us/2us resolution for the ITR registers.
 	 * these values always store the USER setting, and must be converted
 	 * before programming to a register.
 	 */
-	u16 rx_itr_setting;
-	u16 tx_itr_setting;
+	u16 itr_setting;
 
 	u16 count;			/* Number of descriptors */
 	u16 reg_idx;			/* HW register index of the ring */

drivers/net/ethernet/intel/ice/ice_type.h

@@ -18,6 +18,9 @@ static inline bool ice_is_tc_ena(u8 bitmap, u8 tc)
 	return test_bit(tc, (unsigned long *)&bitmap);
 }
 
+/* Driver always calls main vsi_handle first */
+#define ICE_MAIN_VSI_HANDLE		0
+
 /* debug masks - set these bits in hw->debug_mask to control output */
 #define ICE_DBG_INIT		BIT_ULL(1)
 #define ICE_DBG_LINK		BIT_ULL(4)
@@ -147,12 +150,18 @@ struct ice_mac_info {
 	u8 perm_addr[ETH_ALEN];
 };
 
-/* Various RESET request, These are not tied with HW reset types */
+/* Reset types used to determine which kind of reset was requested. These
+ * defines match what the RESET_TYPE field of the GLGEN_RSTAT register.
+ * ICE_RESET_PFR does not match any RESET_TYPE field in the GLGEN_RSTAT register
+ * because its reset source is different than the other types listed.
+ */
 enum ice_reset_req {
+	ICE_RESET_POR	= 0,
 	ICE_RESET_INVAL	= 0,
-	ICE_RESET_PFR	= 1,
-	ICE_RESET_CORER	= 2,
-	ICE_RESET_GLOBR	= 3,
+	ICE_RESET_CORER	= 1,
+	ICE_RESET_GLOBR	= 2,
+	ICE_RESET_EMPR	= 3,
+	ICE_RESET_PFR	= 4,
 };
 
 /* Bus parameters */
@@ -186,7 +195,7 @@ struct ice_sched_node {
 	struct ice_sched_node **children;
 	struct ice_aqc_txsched_elem_data info;
 	u32 agg_id;			/* aggregator group id */
-	u16 vsi_id;
+	u16 vsi_handle;
 	u8 in_use;			/* suspended or in use */
 	u8 tx_sched_layer;		/* Logical Layer (1-9) */
 	u8 num_children;
@@ -245,8 +254,6 @@ struct ice_port_info {
 	struct ice_mac_info mac;
 	struct ice_phy_info phy;
 	struct mutex sched_lock;	/* protect access to TXSched tree */
-	struct ice_sched_tx_policy sched_policy;
-	struct list_head vsi_info_list;
 	struct list_head agg_list;	/* lists all aggregator */
 	u8 lport;
 #define ICE_LPORT_MASK		0xff
@@ -326,16 +333,26 @@ struct ice_hw {
 	u32 fw_build;		/* firmware build number */
 
 	struct ice_fw_log_cfg fw_log;
-	/* minimum allowed value for different speeds */
-#define ICE_ITR_GRAN_MIN_200	1
-#define ICE_ITR_GRAN_MIN_100	1
-#define ICE_ITR_GRAN_MIN_50	2
-#define ICE_ITR_GRAN_MIN_25	4
+
+/* Device max aggregate bandwidths corresponding to the GL_PWR_MODE_CTL
+ * register. Used for determining the itr/intrl granularity during
+ * initialization.
+ */
+#define ICE_MAX_AGG_BW_200G	0x0
+#define ICE_MAX_AGG_BW_100G	0X1
+#define ICE_MAX_AGG_BW_50G	0x2
+#define ICE_MAX_AGG_BW_25G	0x3
+	/* ITR granularity for different speeds */
+#define ICE_ITR_GRAN_ABOVE_25	2
+#define ICE_ITR_GRAN_MAX_25	4
 	/* ITR granularity in 1 us */
-	u8 itr_gran_200;
-	u8 itr_gran_100;
-	u8 itr_gran_50;
-	u8 itr_gran_25;
+	u8 itr_gran;
+	/* INTRL granularity for different speeds */
+#define ICE_INTRL_GRAN_ABOVE_25	4
+#define ICE_INTRL_GRAN_MAX_25	8
+	/* INTRL granularity in 1 us */
+	u8 intrl_gran;
+
 	u8 ucast_shared;	/* true if VSIs can share unicast addr */
 
 };