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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/scsi/bfa/bfa_ioc_ct.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/scsi/bfa/bfa_ioc_ct.c')
-rw-r--r--drivers/scsi/bfa/bfa_ioc_ct.c990
1 files changed, 990 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_ioc_ct.c b/drivers/scsi/bfa/bfa_ioc_ct.c
new file mode 100644
index 000000000..fb7482916
--- /dev/null
+++ b/drivers/scsi/bfa/bfa_ioc_ct.c
@@ -0,0 +1,990 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
+ * All rights reserved
+ * www.qlogic.com
+ *
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
+ */
+
+#include "bfad_drv.h"
+#include "bfa_ioc.h"
+#include "bfi_reg.h"
+#include "bfa_defs.h"
+
+BFA_TRC_FILE(CNA, IOC_CT);
+
+#define bfa_ioc_ct_sync_pos(__ioc) \
+ ((uint32_t) (1 << bfa_ioc_pcifn(__ioc)))
+#define BFA_IOC_SYNC_REQD_SH 16
+#define bfa_ioc_ct_get_sync_ackd(__val) (__val & 0x0000ffff)
+#define bfa_ioc_ct_clear_sync_ackd(__val) (__val & 0xffff0000)
+#define bfa_ioc_ct_get_sync_reqd(__val) (__val >> BFA_IOC_SYNC_REQD_SH)
+#define bfa_ioc_ct_sync_reqd_pos(__ioc) \
+ (bfa_ioc_ct_sync_pos(__ioc) << BFA_IOC_SYNC_REQD_SH)
+
+/*
+ * forward declarations
+ */
+static bfa_boolean_t bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc);
+static bfa_boolean_t bfa_ioc_ct_sync_start(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc);
+static bfa_boolean_t bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_set_cur_ioc_fwstate(
+ struct bfa_ioc_s *ioc, enum bfi_ioc_state fwstate);
+static enum bfi_ioc_state bfa_ioc_ct_get_cur_ioc_fwstate(struct bfa_ioc_s *ioc);
+static void bfa_ioc_ct_set_alt_ioc_fwstate(
+ struct bfa_ioc_s *ioc, enum bfi_ioc_state fwstate);
+static enum bfi_ioc_state bfa_ioc_ct_get_alt_ioc_fwstate(struct bfa_ioc_s *ioc);
+
+static struct bfa_ioc_hwif_s hwif_ct;
+static struct bfa_ioc_hwif_s hwif_ct2;
+
+/*
+ * Return true if firmware of current driver matches the running firmware.
+ */
+static bfa_boolean_t
+bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc)
+{
+ enum bfi_ioc_state ioc_fwstate;
+ u32 usecnt;
+ struct bfi_ioc_image_hdr_s fwhdr;
+
+ bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
+ usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
+
+ /*
+ * If usage count is 0, always return TRUE.
+ */
+ if (usecnt == 0) {
+ writel(1, ioc->ioc_regs.ioc_usage_reg);
+ readl(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(0, ioc->ioc_regs.ioc_fail_sync);
+ bfa_trc(ioc, usecnt);
+ return BFA_TRUE;
+ }
+
+ ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
+ bfa_trc(ioc, ioc_fwstate);
+
+ /*
+ * Use count cannot be non-zero and chip in uninitialized state.
+ */
+ WARN_ON(ioc_fwstate == BFI_IOC_UNINIT);
+
+ /*
+ * Check if another driver with a different firmware is active
+ */
+ bfa_ioc_fwver_get(ioc, &fwhdr);
+ if (!bfa_ioc_fwver_cmp(ioc, &fwhdr)) {
+ readl(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
+ bfa_trc(ioc, usecnt);
+ return BFA_FALSE;
+ }
+
+ /*
+ * Same firmware version. Increment the reference count.
+ */
+ usecnt++;
+ writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
+ readl(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
+ bfa_trc(ioc, usecnt);
+ return BFA_TRUE;
+}
+
+static void
+bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc)
+{
+ u32 usecnt;
+
+ /*
+ * decrement usage count
+ */
+ bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
+ usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
+ WARN_ON(usecnt <= 0);
+
+ usecnt--;
+ writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
+ bfa_trc(ioc, usecnt);
+
+ readl(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
+}
+
+/*
+ * Notify other functions on HB failure.
+ */
+static void
+bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc)
+{
+ if (bfa_ioc_is_cna(ioc)) {
+ writel(__FW_INIT_HALT_P, ioc->ioc_regs.ll_halt);
+ writel(__FW_INIT_HALT_P, ioc->ioc_regs.alt_ll_halt);
+ /* Wait for halt to take effect */
+ readl(ioc->ioc_regs.ll_halt);
+ readl(ioc->ioc_regs.alt_ll_halt);
+ } else {
+ writel(~0U, ioc->ioc_regs.err_set);
+ readl(ioc->ioc_regs.err_set);
+ }
+}
+
+/*
+ * Host to LPU mailbox message addresses
+ */
+static struct { u32 hfn_mbox, lpu_mbox, hfn_pgn; } ct_fnreg[] = {
+ { HOSTFN0_LPU_MBOX0_0, LPU_HOSTFN0_MBOX0_0, HOST_PAGE_NUM_FN0 },
+ { HOSTFN1_LPU_MBOX0_8, LPU_HOSTFN1_MBOX0_8, HOST_PAGE_NUM_FN1 },
+ { HOSTFN2_LPU_MBOX0_0, LPU_HOSTFN2_MBOX0_0, HOST_PAGE_NUM_FN2 },
+ { HOSTFN3_LPU_MBOX0_8, LPU_HOSTFN3_MBOX0_8, HOST_PAGE_NUM_FN3 }
+};
+
+/*
+ * Host <-> LPU mailbox command/status registers - port 0
+ */
+static struct { u32 hfn, lpu; } ct_p0reg[] = {
+ { HOSTFN0_LPU0_CMD_STAT, LPU0_HOSTFN0_CMD_STAT },
+ { HOSTFN1_LPU0_CMD_STAT, LPU0_HOSTFN1_CMD_STAT },
+ { HOSTFN2_LPU0_CMD_STAT, LPU0_HOSTFN2_CMD_STAT },
+ { HOSTFN3_LPU0_CMD_STAT, LPU0_HOSTFN3_CMD_STAT }
+};
+
+/*
+ * Host <-> LPU mailbox command/status registers - port 1
+ */
+static struct { u32 hfn, lpu; } ct_p1reg[] = {
+ { HOSTFN0_LPU1_CMD_STAT, LPU1_HOSTFN0_CMD_STAT },
+ { HOSTFN1_LPU1_CMD_STAT, LPU1_HOSTFN1_CMD_STAT },
+ { HOSTFN2_LPU1_CMD_STAT, LPU1_HOSTFN2_CMD_STAT },
+ { HOSTFN3_LPU1_CMD_STAT, LPU1_HOSTFN3_CMD_STAT }
+};
+
+static struct { uint32_t hfn_mbox, lpu_mbox, hfn_pgn, hfn, lpu, lpu_read; }
+ ct2_reg[] = {
+ { CT2_HOSTFN_LPU0_MBOX0, CT2_LPU0_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
+ CT2_HOSTFN_LPU0_CMD_STAT, CT2_LPU0_HOSTFN_CMD_STAT,
+ CT2_HOSTFN_LPU0_READ_STAT},
+ { CT2_HOSTFN_LPU1_MBOX0, CT2_LPU1_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
+ CT2_HOSTFN_LPU1_CMD_STAT, CT2_LPU1_HOSTFN_CMD_STAT,
+ CT2_HOSTFN_LPU1_READ_STAT},
+};
+
+static void
+bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc)
+{
+ void __iomem *rb;
+ int pcifn = bfa_ioc_pcifn(ioc);
+
+ rb = bfa_ioc_bar0(ioc);
+
+ ioc->ioc_regs.hfn_mbox = rb + ct_fnreg[pcifn].hfn_mbox;
+ ioc->ioc_regs.lpu_mbox = rb + ct_fnreg[pcifn].lpu_mbox;
+ ioc->ioc_regs.host_page_num_fn = rb + ct_fnreg[pcifn].hfn_pgn;
+
+ if (ioc->port_id == 0) {
+ ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG;
+ ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG;
+ ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC1_STATE_REG;
+ ioc->ioc_regs.hfn_mbox_cmd = rb + ct_p0reg[pcifn].hfn;
+ ioc->ioc_regs.lpu_mbox_cmd = rb + ct_p0reg[pcifn].lpu;
+ ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
+ ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
+ } else {
+ ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG);
+ ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG);
+ ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC0_STATE_REG;
+ ioc->ioc_regs.hfn_mbox_cmd = rb + ct_p1reg[pcifn].hfn;
+ ioc->ioc_regs.lpu_mbox_cmd = rb + ct_p1reg[pcifn].lpu;
+ ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
+ ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
+ }
+
+ /*
+ * PSS control registers
+ */
+ ioc->ioc_regs.pss_ctl_reg = (rb + PSS_CTL_REG);
+ ioc->ioc_regs.pss_err_status_reg = (rb + PSS_ERR_STATUS_REG);
+ ioc->ioc_regs.app_pll_fast_ctl_reg = (rb + APP_PLL_LCLK_CTL_REG);
+ ioc->ioc_regs.app_pll_slow_ctl_reg = (rb + APP_PLL_SCLK_CTL_REG);
+
+ /*
+ * IOC semaphore registers and serialization
+ */
+ ioc->ioc_regs.ioc_sem_reg = (rb + HOST_SEM0_REG);
+ ioc->ioc_regs.ioc_usage_sem_reg = (rb + HOST_SEM1_REG);
+ ioc->ioc_regs.ioc_init_sem_reg = (rb + HOST_SEM2_REG);
+ ioc->ioc_regs.ioc_usage_reg = (rb + BFA_FW_USE_COUNT);
+ ioc->ioc_regs.ioc_fail_sync = (rb + BFA_IOC_FAIL_SYNC);
+
+ /*
+ * sram memory access
+ */
+ ioc->ioc_regs.smem_page_start = (rb + PSS_SMEM_PAGE_START);
+ ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
+
+ /*
+ * err set reg : for notification of hb failure in fcmode
+ */
+ ioc->ioc_regs.err_set = (rb + ERR_SET_REG);
+}
+
+static void
+bfa_ioc_ct2_reg_init(struct bfa_ioc_s *ioc)
+{
+ void __iomem *rb;
+ int port = bfa_ioc_portid(ioc);
+
+ rb = bfa_ioc_bar0(ioc);
+
+ ioc->ioc_regs.hfn_mbox = rb + ct2_reg[port].hfn_mbox;
+ ioc->ioc_regs.lpu_mbox = rb + ct2_reg[port].lpu_mbox;
+ ioc->ioc_regs.host_page_num_fn = rb + ct2_reg[port].hfn_pgn;
+ ioc->ioc_regs.hfn_mbox_cmd = rb + ct2_reg[port].hfn;
+ ioc->ioc_regs.lpu_mbox_cmd = rb + ct2_reg[port].lpu;
+ ioc->ioc_regs.lpu_read_stat = rb + ct2_reg[port].lpu_read;
+
+ if (port == 0) {
+ ioc->ioc_regs.heartbeat = rb + CT2_BFA_IOC0_HBEAT_REG;
+ ioc->ioc_regs.ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
+ ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC1_STATE_REG;
+ ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
+ ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
+ } else {
+ ioc->ioc_regs.heartbeat = (rb + CT2_BFA_IOC1_HBEAT_REG);
+ ioc->ioc_regs.ioc_fwstate = (rb + CT2_BFA_IOC1_STATE_REG);
+ ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
+ ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
+ ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
+ }
+
+ /*
+ * PSS control registers
+ */
+ ioc->ioc_regs.pss_ctl_reg = (rb + PSS_CTL_REG);
+ ioc->ioc_regs.pss_err_status_reg = (rb + PSS_ERR_STATUS_REG);
+ ioc->ioc_regs.app_pll_fast_ctl_reg = (rb + CT2_APP_PLL_LCLK_CTL_REG);
+ ioc->ioc_regs.app_pll_slow_ctl_reg = (rb + CT2_APP_PLL_SCLK_CTL_REG);
+
+ /*
+ * IOC semaphore registers and serialization
+ */
+ ioc->ioc_regs.ioc_sem_reg = (rb + CT2_HOST_SEM0_REG);
+ ioc->ioc_regs.ioc_usage_sem_reg = (rb + CT2_HOST_SEM1_REG);
+ ioc->ioc_regs.ioc_init_sem_reg = (rb + CT2_HOST_SEM2_REG);
+ ioc->ioc_regs.ioc_usage_reg = (rb + CT2_BFA_FW_USE_COUNT);
+ ioc->ioc_regs.ioc_fail_sync = (rb + CT2_BFA_IOC_FAIL_SYNC);
+
+ /*
+ * sram memory access
+ */
+ ioc->ioc_regs.smem_page_start = (rb + PSS_SMEM_PAGE_START);
+ ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
+
+ /*
+ * err set reg : for notification of hb failure in fcmode
+ */
+ ioc->ioc_regs.err_set = (rb + ERR_SET_REG);
+}
+
+/*
+ * Initialize IOC to port mapping.
+ */
+
+#define FNC_PERS_FN_SHIFT(__fn) ((__fn) * 8)
+static void
+bfa_ioc_ct_map_port(struct bfa_ioc_s *ioc)
+{
+ void __iomem *rb = ioc->pcidev.pci_bar_kva;
+ u32 r32;
+
+ /*
+ * For catapult, base port id on personality register and IOC type
+ */
+ r32 = readl(rb + FNC_PERS_REG);
+ r32 >>= FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc));
+ ioc->port_id = (r32 & __F0_PORT_MAP_MK) >> __F0_PORT_MAP_SH;
+
+ bfa_trc(ioc, bfa_ioc_pcifn(ioc));
+ bfa_trc(ioc, ioc->port_id);
+}
+
+static void
+bfa_ioc_ct2_map_port(struct bfa_ioc_s *ioc)
+{
+ void __iomem *rb = ioc->pcidev.pci_bar_kva;
+ u32 r32;
+
+ r32 = readl(rb + CT2_HOSTFN_PERSONALITY0);
+ ioc->port_id = ((r32 & __FC_LL_PORT_MAP__MK) >> __FC_LL_PORT_MAP__SH);
+
+ bfa_trc(ioc, bfa_ioc_pcifn(ioc));
+ bfa_trc(ioc, ioc->port_id);
+}
+
+/*
+ * Set interrupt mode for a function: INTX or MSIX
+ */
+static void
+bfa_ioc_ct_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix)
+{
+ void __iomem *rb = ioc->pcidev.pci_bar_kva;
+ u32 r32, mode;
+
+ r32 = readl(rb + FNC_PERS_REG);
+ bfa_trc(ioc, r32);
+
+ mode = (r32 >> FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc))) &
+ __F0_INTX_STATUS;
+
+ /*
+ * If already in desired mode, do not change anything
+ */
+ if ((!msix && mode) || (msix && !mode))
+ return;
+
+ if (msix)
+ mode = __F0_INTX_STATUS_MSIX;
+ else
+ mode = __F0_INTX_STATUS_INTA;
+
+ r32 &= ~(__F0_INTX_STATUS << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
+ r32 |= (mode << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
+ bfa_trc(ioc, r32);
+
+ writel(r32, rb + FNC_PERS_REG);
+}
+
+static bfa_boolean_t
+bfa_ioc_ct2_lpu_read_stat(struct bfa_ioc_s *ioc)
+{
+ u32 r32;
+
+ r32 = readl(ioc->ioc_regs.lpu_read_stat);
+ if (r32) {
+ writel(1, ioc->ioc_regs.lpu_read_stat);
+ return BFA_TRUE;
+ }
+
+ return BFA_FALSE;
+}
+
+/*
+ * Cleanup hw semaphore and usecnt registers
+ */
+static void
+bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc)
+{
+
+ bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(0, ioc->ioc_regs.ioc_usage_reg);
+ readl(ioc->ioc_regs.ioc_usage_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
+
+ writel(0, ioc->ioc_regs.ioc_fail_sync);
+ /*
+ * Read the hw sem reg to make sure that it is locked
+ * before we clear it. If it is not locked, writing 1
+ * will lock it instead of clearing it.
+ */
+ readl(ioc->ioc_regs.ioc_sem_reg);
+ writel(1, ioc->ioc_regs.ioc_sem_reg);
+}
+
+static bfa_boolean_t
+bfa_ioc_ct_sync_start(struct bfa_ioc_s *ioc)
+{
+ uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+ uint32_t sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
+
+ /*
+ * Driver load time. If the sync required bit for this PCI fn
+ * is set, it is due to an unclean exit by the driver for this
+ * PCI fn in the previous incarnation. Whoever comes here first
+ * should clean it up, no matter which PCI fn.
+ */
+
+ if (sync_reqd & bfa_ioc_ct_sync_pos(ioc)) {
+ writel(0, ioc->ioc_regs.ioc_fail_sync);
+ writel(1, ioc->ioc_regs.ioc_usage_reg);
+ writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);
+ writel(BFI_IOC_UNINIT, ioc->ioc_regs.alt_ioc_fwstate);
+ return BFA_TRUE;
+ }
+
+ return bfa_ioc_ct_sync_complete(ioc);
+}
+
+/*
+ * Synchronized IOC failure processing routines
+ */
+static void
+bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc)
+{
+ uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+ uint32_t sync_pos = bfa_ioc_ct_sync_reqd_pos(ioc);
+
+ writel((r32 | sync_pos), ioc->ioc_regs.ioc_fail_sync);
+}
+
+static void
+bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc)
+{
+ uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+ uint32_t sync_msk = bfa_ioc_ct_sync_reqd_pos(ioc) |
+ bfa_ioc_ct_sync_pos(ioc);
+
+ writel((r32 & ~sync_msk), ioc->ioc_regs.ioc_fail_sync);
+}
+
+static void
+bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc)
+{
+ uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+
+ writel((r32 | bfa_ioc_ct_sync_pos(ioc)),
+ ioc->ioc_regs.ioc_fail_sync);
+}
+
+static bfa_boolean_t
+bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc)
+{
+ uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
+ uint32_t sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
+ uint32_t sync_ackd = bfa_ioc_ct_get_sync_ackd(r32);
+ uint32_t tmp_ackd;
+
+ if (sync_ackd == 0)
+ return BFA_TRUE;
+
+ /*
+ * The check below is to see whether any other PCI fn
+ * has reinitialized the ASIC (reset sync_ackd bits)
+ * and failed again while this IOC was waiting for hw
+ * semaphore (in bfa_iocpf_sm_semwait()).
+ */
+ tmp_ackd = sync_ackd;
+ if ((sync_reqd & bfa_ioc_ct_sync_pos(ioc)) &&
+ !(sync_ackd & bfa_ioc_ct_sync_pos(ioc)))
+ sync_ackd |= bfa_ioc_ct_sync_pos(ioc);
+
+ if (sync_reqd == sync_ackd) {
+ writel(bfa_ioc_ct_clear_sync_ackd(r32),
+ ioc->ioc_regs.ioc_fail_sync);
+ writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
+ writel(BFI_IOC_FAIL, ioc->ioc_regs.alt_ioc_fwstate);
+ return BFA_TRUE;
+ }
+
+ /*
+ * If another PCI fn reinitialized and failed again while
+ * this IOC was waiting for hw sem, the sync_ackd bit for
+ * this IOC need to be set again to allow reinitialization.
+ */
+ if (tmp_ackd != sync_ackd)
+ writel((r32 | sync_ackd), ioc->ioc_regs.ioc_fail_sync);
+
+ return BFA_FALSE;
+}
+
+/*
+ * Called from bfa_ioc_attach() to map asic specific calls.
+ */
+static void
+bfa_ioc_set_ctx_hwif(struct bfa_ioc_s *ioc, struct bfa_ioc_hwif_s *hwif)
+{
+ hwif->ioc_firmware_lock = bfa_ioc_ct_firmware_lock;
+ hwif->ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock;
+ hwif->ioc_notify_fail = bfa_ioc_ct_notify_fail;
+ hwif->ioc_ownership_reset = bfa_ioc_ct_ownership_reset;
+ hwif->ioc_sync_start = bfa_ioc_ct_sync_start;
+ hwif->ioc_sync_join = bfa_ioc_ct_sync_join;
+ hwif->ioc_sync_leave = bfa_ioc_ct_sync_leave;
+ hwif->ioc_sync_ack = bfa_ioc_ct_sync_ack;
+ hwif->ioc_sync_complete = bfa_ioc_ct_sync_complete;
+ hwif->ioc_set_fwstate = bfa_ioc_ct_set_cur_ioc_fwstate;
+ hwif->ioc_get_fwstate = bfa_ioc_ct_get_cur_ioc_fwstate;
+ hwif->ioc_set_alt_fwstate = bfa_ioc_ct_set_alt_ioc_fwstate;
+ hwif->ioc_get_alt_fwstate = bfa_ioc_ct_get_alt_ioc_fwstate;
+}
+
+/*
+ * Called from bfa_ioc_attach() to map asic specific calls.
+ */
+void
+bfa_ioc_set_ct_hwif(struct bfa_ioc_s *ioc)
+{
+ bfa_ioc_set_ctx_hwif(ioc, &hwif_ct);
+
+ hwif_ct.ioc_pll_init = bfa_ioc_ct_pll_init;
+ hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init;
+ hwif_ct.ioc_map_port = bfa_ioc_ct_map_port;
+ hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set;
+ ioc->ioc_hwif = &hwif_ct;
+}
+
+/*
+ * Called from bfa_ioc_attach() to map asic specific calls.
+ */
+void
+bfa_ioc_set_ct2_hwif(struct bfa_ioc_s *ioc)
+{
+ bfa_ioc_set_ctx_hwif(ioc, &hwif_ct2);
+
+ hwif_ct2.ioc_pll_init = bfa_ioc_ct2_pll_init;
+ hwif_ct2.ioc_reg_init = bfa_ioc_ct2_reg_init;
+ hwif_ct2.ioc_map_port = bfa_ioc_ct2_map_port;
+ hwif_ct2.ioc_lpu_read_stat = bfa_ioc_ct2_lpu_read_stat;
+ hwif_ct2.ioc_isr_mode_set = NULL;
+ ioc->ioc_hwif = &hwif_ct2;
+}
+
+/*
+ * Workaround for MSI-X resource allocation for catapult-2 with no asic block
+ */
+#define HOSTFN_MSIX_DEFAULT 64
+#define HOSTFN_MSIX_VT_INDEX_MBOX_ERR 0x30138
+#define HOSTFN_MSIX_VT_OFST_NUMVT 0x3013c
+#define __MSIX_VT_NUMVT__MK 0x003ff800
+#define __MSIX_VT_NUMVT__SH 11
+#define __MSIX_VT_NUMVT_(_v) ((_v) << __MSIX_VT_NUMVT__SH)
+#define __MSIX_VT_OFST_ 0x000007ff
+void
+bfa_ioc_ct2_poweron(struct bfa_ioc_s *ioc)
+{
+ void __iomem *rb = ioc->pcidev.pci_bar_kva;
+ u32 r32;
+
+ r32 = readl(rb + HOSTFN_MSIX_VT_OFST_NUMVT);
+ if (r32 & __MSIX_VT_NUMVT__MK) {
+ writel(r32 & __MSIX_VT_OFST_,
+ rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
+ return;
+ }
+
+ writel(__MSIX_VT_NUMVT_(HOSTFN_MSIX_DEFAULT - 1) |
+ HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
+ rb + HOSTFN_MSIX_VT_OFST_NUMVT);
+ writel(HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
+ rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
+}
+
+bfa_status_t
+bfa_ioc_ct_pll_init(void __iomem *rb, enum bfi_asic_mode mode)
+{
+ u32 pll_sclk, pll_fclk, r32;
+ bfa_boolean_t fcmode = (mode == BFI_ASIC_MODE_FC);
+
+ pll_sclk = __APP_PLL_SCLK_LRESETN | __APP_PLL_SCLK_ENARST |
+ __APP_PLL_SCLK_RSEL200500 | __APP_PLL_SCLK_P0_1(3U) |
+ __APP_PLL_SCLK_JITLMT0_1(3U) |
+ __APP_PLL_SCLK_CNTLMT0_1(1U);
+ pll_fclk = __APP_PLL_LCLK_LRESETN | __APP_PLL_LCLK_ENARST |
+ __APP_PLL_LCLK_RSEL200500 | __APP_PLL_LCLK_P0_1(3U) |
+ __APP_PLL_LCLK_JITLMT0_1(3U) |
+ __APP_PLL_LCLK_CNTLMT0_1(1U);
+
+ if (fcmode) {
+ writel(0, (rb + OP_MODE));
+ writel(__APP_EMS_CMLCKSEL | __APP_EMS_REFCKBUFEN2 |
+ __APP_EMS_CHANNEL_SEL, (rb + ETH_MAC_SER_REG));
+ } else {
+ writel(__GLOBAL_FCOE_MODE, (rb + OP_MODE));
+ writel(__APP_EMS_REFCKBUFEN1, (rb + ETH_MAC_SER_REG));
+ }
+ writel(BFI_IOC_UNINIT, (rb + BFA_IOC0_STATE_REG));
+ writel(BFI_IOC_UNINIT, (rb + BFA_IOC1_STATE_REG));
+ writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
+ writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
+ writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
+ writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
+ writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
+ writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
+ writel(pll_sclk | __APP_PLL_SCLK_LOGIC_SOFT_RESET,
+ rb + APP_PLL_SCLK_CTL_REG);
+ writel(pll_fclk | __APP_PLL_LCLK_LOGIC_SOFT_RESET,
+ rb + APP_PLL_LCLK_CTL_REG);
+ writel(pll_sclk | __APP_PLL_SCLK_LOGIC_SOFT_RESET |
+ __APP_PLL_SCLK_ENABLE, rb + APP_PLL_SCLK_CTL_REG);
+ writel(pll_fclk | __APP_PLL_LCLK_LOGIC_SOFT_RESET |
+ __APP_PLL_LCLK_ENABLE, rb + APP_PLL_LCLK_CTL_REG);
+ readl(rb + HOSTFN0_INT_MSK);
+ udelay(2000);
+ writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
+ writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
+ writel(pll_sclk | __APP_PLL_SCLK_ENABLE, rb + APP_PLL_SCLK_CTL_REG);
+ writel(pll_fclk | __APP_PLL_LCLK_ENABLE, rb + APP_PLL_LCLK_CTL_REG);
+
+ if (!fcmode) {
+ writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P0));
+ writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P1));
+ }
+ r32 = readl((rb + PSS_CTL_REG));
+ r32 &= ~__PSS_LMEM_RESET;
+ writel(r32, (rb + PSS_CTL_REG));
+ udelay(1000);
+ if (!fcmode) {
+ writel(0, (rb + PMM_1T_RESET_REG_P0));
+ writel(0, (rb + PMM_1T_RESET_REG_P1));
+ }
+
+ writel(__EDRAM_BISTR_START, (rb + MBIST_CTL_REG));
+ udelay(1000);
+ r32 = readl((rb + MBIST_STAT_REG));
+ writel(0, (rb + MBIST_CTL_REG));
+ return BFA_STATUS_OK;
+}
+
+static void
+bfa_ioc_ct2_sclk_init(void __iomem *rb)
+{
+ u32 r32;
+
+ /*
+ * put s_clk PLL and PLL FSM in reset
+ */
+ r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+ r32 &= ~(__APP_PLL_SCLK_ENABLE | __APP_PLL_SCLK_LRESETN);
+ r32 |= (__APP_PLL_SCLK_ENARST | __APP_PLL_SCLK_BYPASS |
+ __APP_PLL_SCLK_LOGIC_SOFT_RESET);
+ writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+ /*
+ * Ignore mode and program for the max clock (which is FC16)
+ * Firmware/NFC will do the PLL init appropiately
+ */
+ r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+ r32 &= ~(__APP_PLL_SCLK_REFCLK_SEL | __APP_PLL_SCLK_CLK_DIV2);
+ writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+ /*
+ * while doing PLL init dont clock gate ethernet subsystem
+ */
+ r32 = readl((rb + CT2_CHIP_MISC_PRG));
+ writel(r32 | __ETH_CLK_ENABLE_PORT0, (rb + CT2_CHIP_MISC_PRG));
+
+ r32 = readl((rb + CT2_PCIE_MISC_REG));
+ writel(r32 | __ETH_CLK_ENABLE_PORT1, (rb + CT2_PCIE_MISC_REG));
+
+ /*
+ * set sclk value
+ */
+ r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+ r32 &= (__P_SCLK_PLL_LOCK | __APP_PLL_SCLK_REFCLK_SEL |
+ __APP_PLL_SCLK_CLK_DIV2);
+ writel(r32 | 0x1061731b, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+ /*
+ * poll for s_clk lock or delay 1ms
+ */
+ udelay(1000);
+}
+
+static void
+bfa_ioc_ct2_lclk_init(void __iomem *rb)
+{
+ u32 r32;
+
+ /*
+ * put l_clk PLL and PLL FSM in reset
+ */
+ r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+ r32 &= ~(__APP_PLL_LCLK_ENABLE | __APP_PLL_LCLK_LRESETN);
+ r32 |= (__APP_PLL_LCLK_ENARST | __APP_PLL_LCLK_BYPASS |
+ __APP_PLL_LCLK_LOGIC_SOFT_RESET);
+ writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+ /*
+ * set LPU speed (set for FC16 which will work for other modes)
+ */
+ r32 = readl((rb + CT2_CHIP_MISC_PRG));
+ writel(r32, (rb + CT2_CHIP_MISC_PRG));
+
+ /*
+ * set LPU half speed (set for FC16 which will work for other modes)
+ */
+ r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+ writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+ /*
+ * set lclk for mode (set for FC16)
+ */
+ r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+ r32 &= (__P_LCLK_PLL_LOCK | __APP_LPUCLK_HALFSPEED);
+ r32 |= 0x20c1731b;
+ writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+ /*
+ * poll for s_clk lock or delay 1ms
+ */
+ udelay(1000);
+}
+
+static void
+bfa_ioc_ct2_mem_init(void __iomem *rb)
+{
+ u32 r32;
+
+ r32 = readl((rb + PSS_CTL_REG));
+ r32 &= ~__PSS_LMEM_RESET;
+ writel(r32, (rb + PSS_CTL_REG));
+ udelay(1000);
+
+ writel(__EDRAM_BISTR_START, (rb + CT2_MBIST_CTL_REG));
+ udelay(1000);
+ writel(0, (rb + CT2_MBIST_CTL_REG));
+}
+
+static void
+bfa_ioc_ct2_mac_reset(void __iomem *rb)
+{
+ /* put port0, port1 MAC & AHB in reset */
+ writel((__CSI_MAC_RESET | __CSI_MAC_AHB_RESET),
+ rb + CT2_CSI_MAC_CONTROL_REG(0));
+ writel((__CSI_MAC_RESET | __CSI_MAC_AHB_RESET),
+ rb + CT2_CSI_MAC_CONTROL_REG(1));
+}
+
+static void
+bfa_ioc_ct2_enable_flash(void __iomem *rb)
+{
+ u32 r32;
+
+ r32 = readl((rb + PSS_GPIO_OUT_REG));
+ writel(r32 & ~1, (rb + PSS_GPIO_OUT_REG));
+ r32 = readl((rb + PSS_GPIO_OE_REG));
+ writel(r32 | 1, (rb + PSS_GPIO_OE_REG));
+}
+
+#define CT2_NFC_MAX_DELAY 1000
+#define CT2_NFC_PAUSE_MAX_DELAY 4000
+#define CT2_NFC_VER_VALID 0x147
+#define CT2_NFC_STATE_RUNNING 0x20000001
+#define BFA_IOC_PLL_POLL 1000000
+
+static bfa_boolean_t
+bfa_ioc_ct2_nfc_halted(void __iomem *rb)
+{
+ u32 r32;
+
+ r32 = readl(rb + CT2_NFC_CSR_SET_REG);
+ if (r32 & __NFC_CONTROLLER_HALTED)
+ return BFA_TRUE;
+
+ return BFA_FALSE;
+}
+
+static void
+bfa_ioc_ct2_nfc_halt(void __iomem *rb)
+{
+ int i;
+
+ writel(__HALT_NFC_CONTROLLER, rb + CT2_NFC_CSR_SET_REG);
+ for (i = 0; i < CT2_NFC_MAX_DELAY; i++) {
+ if (bfa_ioc_ct2_nfc_halted(rb))
+ break;
+ udelay(1000);
+ }
+ WARN_ON(!bfa_ioc_ct2_nfc_halted(rb));
+}
+
+static void
+bfa_ioc_ct2_nfc_resume(void __iomem *rb)
+{
+ u32 r32;
+ int i;
+
+ writel(__HALT_NFC_CONTROLLER, rb + CT2_NFC_CSR_CLR_REG);
+ for (i = 0; i < CT2_NFC_MAX_DELAY; i++) {
+ r32 = readl(rb + CT2_NFC_CSR_SET_REG);
+ if (!(r32 & __NFC_CONTROLLER_HALTED))
+ return;
+ udelay(1000);
+ }
+ WARN_ON(1);
+}
+
+static void
+bfa_ioc_ct2_clk_reset(void __iomem *rb)
+{
+ u32 r32;
+
+ bfa_ioc_ct2_sclk_init(rb);
+ bfa_ioc_ct2_lclk_init(rb);
+
+ /*
+ * release soft reset on s_clk & l_clk
+ */
+ r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+ writel(r32 & ~__APP_PLL_SCLK_LOGIC_SOFT_RESET,
+ (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+ r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+ writel(r32 & ~__APP_PLL_LCLK_LOGIC_SOFT_RESET,
+ (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+}
+
+static void
+bfa_ioc_ct2_nfc_clk_reset(void __iomem *rb)
+{
+ u32 r32, i;
+
+ r32 = readl((rb + PSS_CTL_REG));
+ r32 |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
+ writel(r32, (rb + PSS_CTL_REG));
+
+ writel(__RESET_AND_START_SCLK_LCLK_PLLS, rb + CT2_CSI_FW_CTL_SET_REG);
+
+ for (i = 0; i < BFA_IOC_PLL_POLL; i++) {
+ r32 = readl(rb + CT2_NFC_FLASH_STS_REG);
+
+ if ((r32 & __FLASH_PLL_INIT_AND_RESET_IN_PROGRESS))
+ break;
+ }
+ WARN_ON(!(r32 & __FLASH_PLL_INIT_AND_RESET_IN_PROGRESS));
+
+ for (i = 0; i < BFA_IOC_PLL_POLL; i++) {
+ r32 = readl(rb + CT2_NFC_FLASH_STS_REG);
+
+ if (!(r32 & __FLASH_PLL_INIT_AND_RESET_IN_PROGRESS))
+ break;
+ }
+ WARN_ON((r32 & __FLASH_PLL_INIT_AND_RESET_IN_PROGRESS));
+
+ r32 = readl(rb + CT2_CSI_FW_CTL_REG);
+ WARN_ON((r32 & __RESET_AND_START_SCLK_LCLK_PLLS));
+}
+
+static void
+bfa_ioc_ct2_wait_till_nfc_running(void __iomem *rb)
+{
+ u32 r32;
+ int i;
+
+ if (bfa_ioc_ct2_nfc_halted(rb))
+ bfa_ioc_ct2_nfc_resume(rb);
+ for (i = 0; i < CT2_NFC_PAUSE_MAX_DELAY; i++) {
+ r32 = readl(rb + CT2_NFC_STS_REG);
+ if (r32 == CT2_NFC_STATE_RUNNING)
+ return;
+ udelay(1000);
+ }
+
+ r32 = readl(rb + CT2_NFC_STS_REG);
+ WARN_ON(!(r32 == CT2_NFC_STATE_RUNNING));
+}
+
+bfa_status_t
+bfa_ioc_ct2_pll_init(void __iomem *rb, enum bfi_asic_mode mode)
+{
+ u32 wgn, r32, nfc_ver;
+
+ wgn = readl(rb + CT2_WGN_STATUS);
+
+ if (wgn == (__WGN_READY | __GLBL_PF_VF_CFG_RDY)) {
+ /*
+ * If flash is corrupted, enable flash explicitly
+ */
+ bfa_ioc_ct2_clk_reset(rb);
+ bfa_ioc_ct2_enable_flash(rb);
+
+ bfa_ioc_ct2_mac_reset(rb);
+
+ bfa_ioc_ct2_clk_reset(rb);
+ bfa_ioc_ct2_enable_flash(rb);
+
+ } else {
+ nfc_ver = readl(rb + CT2_RSC_GPR15_REG);
+
+ if ((nfc_ver >= CT2_NFC_VER_VALID) &&
+ (wgn == (__A2T_AHB_LOAD | __WGN_READY))) {
+
+ bfa_ioc_ct2_wait_till_nfc_running(rb);
+
+ bfa_ioc_ct2_nfc_clk_reset(rb);
+ } else {
+ bfa_ioc_ct2_nfc_halt(rb);
+
+ bfa_ioc_ct2_clk_reset(rb);
+ bfa_ioc_ct2_mac_reset(rb);
+ bfa_ioc_ct2_clk_reset(rb);
+
+ }
+ }
+ /*
+ * The very first PCIe DMA Read done by LPU fails with a fatal error,
+ * when Address Translation Cache (ATC) has been enabled by system BIOS.
+ *
+ * Workaround:
+ * Disable Invalidated Tag Match Enable capability by setting the bit 26
+ * of CHIP_MISC_PRG to 0, by default it is set to 1.
+ */
+ r32 = readl(rb + CT2_CHIP_MISC_PRG);
+ writel((r32 & 0xfbffffff), (rb + CT2_CHIP_MISC_PRG));
+
+ /*
+ * Mask the interrupts and clear any
+ * pending interrupts left by BIOS/EFI
+ */
+
+ writel(1, (rb + CT2_LPU0_HOSTFN_MBOX0_MSK));
+ writel(1, (rb + CT2_LPU1_HOSTFN_MBOX0_MSK));
+
+ /* For first time initialization, no need to clear interrupts */
+ r32 = readl(rb + HOST_SEM5_REG);
+ if (r32 & 0x1) {
+ r32 = readl((rb + CT2_LPU0_HOSTFN_CMD_STAT));
+ if (r32 == 1) {
+ writel(1, (rb + CT2_LPU0_HOSTFN_CMD_STAT));
+ readl((rb + CT2_LPU0_HOSTFN_CMD_STAT));
+ }
+ r32 = readl((rb + CT2_LPU1_HOSTFN_CMD_STAT));
+ if (r32 == 1) {
+ writel(1, (rb + CT2_LPU1_HOSTFN_CMD_STAT));
+ readl((rb + CT2_LPU1_HOSTFN_CMD_STAT));
+ }
+ }
+
+ bfa_ioc_ct2_mem_init(rb);
+
+ writel(BFI_IOC_UNINIT, (rb + CT2_BFA_IOC0_STATE_REG));
+ writel(BFI_IOC_UNINIT, (rb + CT2_BFA_IOC1_STATE_REG));
+
+ return BFA_STATUS_OK;
+}
+
+static void
+bfa_ioc_ct_set_cur_ioc_fwstate(struct bfa_ioc_s *ioc,
+ enum bfi_ioc_state fwstate)
+{
+ writel(fwstate, ioc->ioc_regs.ioc_fwstate);
+}
+
+static enum bfi_ioc_state
+bfa_ioc_ct_get_cur_ioc_fwstate(struct bfa_ioc_s *ioc)
+{
+ return (enum bfi_ioc_state)readl(ioc->ioc_regs.ioc_fwstate);
+}
+
+static void
+bfa_ioc_ct_set_alt_ioc_fwstate(struct bfa_ioc_s *ioc,
+ enum bfi_ioc_state fwstate)
+{
+ writel(fwstate, ioc->ioc_regs.alt_ioc_fwstate);
+}
+
+static enum bfi_ioc_state
+bfa_ioc_ct_get_alt_ioc_fwstate(struct bfa_ioc_s *ioc)
+{
+ return (enum bfi_ioc_state) readl(ioc->ioc_regs.alt_ioc_fwstate);
+}