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 2018-10-01

This series contains updates to ice driver only.

Anirudh provides several changes to "prep" the driver for upcoming
features.  Specifically, the functions that are used for PF VSI/netdev
setup will also be used in SR-IOV support and to allow the reuse of
these functions, code needs to move.

Dave provides the only other change in the series, updates the driver to
protect the reset patch in its entirety.  This is done by adding the
various bit checks to determine if a reset is scheduled/initiated and
whether it came from the software or firmware.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ice/Makefile

@@ -13,5 +13,6 @@ ice-y := ice_main.o	\
 	 ice_nvm.o	\
 	 ice_switch.o	\
 	 ice_sched.o	\
+	 ice_lib.o	\
 	 ice_txrx.o	\
 	 ice_ethtool.o

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

@@ -124,7 +124,7 @@ enum ice_state {
 	__ICE_DOWN,
 	__ICE_NEEDS_RESTART,
 	__ICE_PREPARED_FOR_RESET,	/* set by driver when prepared */
-	__ICE_RESET_RECOVERY_PENDING,	/* set by driver when reset starts */
+	__ICE_RESET_OICR_RECV,		/* set by driver after rcv reset OICR */
 	__ICE_PFR_REQ,			/* set by driver and peers */
 	__ICE_CORER_REQ,		/* set by driver and peers */
 	__ICE_GLOBR_REQ,		/* set by driver and peers */

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

@@ -2652,3 +2652,64 @@ ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap,
 	return ice_cfg_vsi_qs(pi, vsi_id, tc_bitmap, max_lanqs,
 			      ICE_SCHED_NODE_OWNER_LAN);
 }
+
+/**
+ * ice_stat_update40 - read 40 bit stat from the chip and update stat values
+ * @hw: ptr to the hardware info
+ * @hireg: high 32 bit HW register to read from
+ * @loreg: low 32 bit HW register to read from
+ * @prev_stat_loaded: bool to specify if previous stats are loaded
+ * @prev_stat: ptr to previous loaded stat value
+ * @cur_stat: ptr to current stat value
+ */
+void ice_stat_update40(struct ice_hw *hw, u32 hireg, u32 loreg,
+		       bool prev_stat_loaded, u64 *prev_stat, u64 *cur_stat)
+{
+	u64 new_data;
+
+	new_data = rd32(hw, loreg);
+	new_data |= ((u64)(rd32(hw, hireg) & 0xFFFF)) << 32;
+
+	/* device stats are not reset at PFR, they likely will not be zeroed
+	 * when the driver starts. So save the first values read and use them as
+	 * offsets to be subtracted from the raw values in order to report stats
+	 * that count from zero.
+	 */
+	if (!prev_stat_loaded)
+		*prev_stat = new_data;
+	if (new_data >= *prev_stat)
+		*cur_stat = new_data - *prev_stat;
+	else
+		/* to manage the potential roll-over */
+		*cur_stat = (new_data + BIT_ULL(40)) - *prev_stat;
+	*cur_stat &= 0xFFFFFFFFFFULL;
+}
+
+/**
+ * ice_stat_update32 - read 32 bit stat from the chip and update stat values
+ * @hw: ptr to the hardware info
+ * @reg: HW register to read from
+ * @prev_stat_loaded: bool to specify if previous stats are loaded
+ * @prev_stat: ptr to previous loaded stat value
+ * @cur_stat: ptr to current stat value
+ */
+void ice_stat_update32(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
+		       u64 *prev_stat, u64 *cur_stat)
+{
+	u32 new_data;
+
+	new_data = rd32(hw, reg);
+
+	/* device stats are not reset at PFR, they likely will not be zeroed
+	 * when the driver starts. So save the first values read and use them as
+	 * offsets to be subtracted from the raw values in order to report stats
+	 * that count from zero.
+	 */
+	if (!prev_stat_loaded)
+		*prev_stat = new_data;
+	if (new_data >= *prev_stat)
+		*cur_stat = new_data - *prev_stat;
+	else
+		/* to manage the potential roll-over */
+		*cur_stat = (new_data + BIT_ULL(32)) - *prev_stat;
+}

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

@@ -96,4 +96,8 @@ ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps,
 		struct ice_aqc_add_tx_qgrp *buf, u16 buf_size,
 		struct ice_sq_cd *cd);
 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);
+void ice_stat_update32(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
+		       u64 *prev_stat, u64 *cur_stat);
 #endif /* _ICE_COMMON_H_ */

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

@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018, Intel Corporation. */
+
+#ifndef _ICE_LIB_H_
+#define _ICE_LIB_H_
+
+#include "ice.h"
+
+int ice_add_mac_to_list(struct ice_vsi *vsi, struct list_head *add_list,
+			const u8 *macaddr);
+
+void ice_free_fltr_list(struct device *dev, struct list_head *h);
+
+void ice_update_eth_stats(struct ice_vsi *vsi);
+
+int ice_vsi_cfg_rxqs(struct ice_vsi *vsi);
+
+int ice_vsi_cfg_txqs(struct ice_vsi *vsi);
+
+void ice_vsi_cfg_msix(struct ice_vsi *vsi);
+
+int ice_vsi_add_vlan(struct ice_vsi *vsi, u16 vid);
+
+int ice_vsi_kill_vlan(struct ice_vsi *vsi, u16 vid);
+
+int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi);
+
+int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena);
+
+int ice_vsi_start_rx_rings(struct ice_vsi *vsi);
+
+int ice_vsi_stop_rx_rings(struct ice_vsi *vsi);
+
+int ice_vsi_stop_tx_rings(struct ice_vsi *vsi);
+
+int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena);
+
+void ice_vsi_delete(struct ice_vsi *vsi);
+
+int ice_vsi_clear(struct ice_vsi *vsi);
+
+struct ice_vsi *
+ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,
+	      enum ice_vsi_type type, u16 vf_id);
+
+int ice_vsi_release(struct ice_vsi *vsi);
+
+void ice_vsi_close(struct ice_vsi *vsi);
+
+int ice_free_res(struct ice_res_tracker *res, u16 index, u16 id);
+
+int
+ice_get_res(struct ice_pf *pf, struct ice_res_tracker *res, u16 needed, u16 id);
+
+int ice_vsi_rebuild(struct ice_vsi *vsi);
+
+bool ice_is_reset_in_progress(unsigned long *state);
+
+void ice_vsi_free_q_vectors(struct ice_vsi *vsi);
+
+void ice_vsi_put_qs(struct ice_vsi *vsi);
+
+void ice_vsi_dis_irq(struct ice_vsi *vsi);
+
+void ice_vsi_free_irq(struct ice_vsi *vsi);
+
+void ice_vsi_free_rx_rings(struct ice_vsi *vsi);
+
+void ice_vsi_free_tx_rings(struct ice_vsi *vsi);
+
+int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc);
+
+irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data);
+#endif /* !_ICE_LIB_H_ */