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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/mmc/host/cqhci.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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/mmc/host/cqhci.h')
-rw-r--r--drivers/mmc/host/cqhci.h324
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/mmc/host/cqhci.h b/drivers/mmc/host/cqhci.h
new file mode 100644
index 000000000..ba9387ed9
--- /dev/null
+++ b/drivers/mmc/host/cqhci.h
@@ -0,0 +1,324 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ */
+#ifndef LINUX_MMC_CQHCI_H
+#define LINUX_MMC_CQHCI_H
+
+#include <linux/compiler.h>
+#include <linux/bitops.h>
+#include <linux/spinlock_types.h>
+#include <linux/types.h>
+#include <linux/completion.h>
+#include <linux/wait.h>
+#include <linux/irqreturn.h>
+#include <asm/io.h>
+
+/* registers */
+/* version */
+#define CQHCI_VER 0x00
+#define CQHCI_VER_MAJOR(x) (((x) & GENMASK(11, 8)) >> 8)
+#define CQHCI_VER_MINOR1(x) (((x) & GENMASK(7, 4)) >> 4)
+#define CQHCI_VER_MINOR2(x) ((x) & GENMASK(3, 0))
+
+/* capabilities */
+#define CQHCI_CAP 0x04
+#define CQHCI_CAP_CS 0x10000000 /* Crypto Support */
+
+/* configuration */
+#define CQHCI_CFG 0x08
+#define CQHCI_DCMD 0x00001000
+#define CQHCI_TASK_DESC_SZ 0x00000100
+#define CQHCI_CRYPTO_GENERAL_ENABLE 0x00000002
+#define CQHCI_ENABLE 0x00000001
+
+/* control */
+#define CQHCI_CTL 0x0C
+#define CQHCI_CLEAR_ALL_TASKS 0x00000100
+#define CQHCI_HALT 0x00000001
+
+/* interrupt status */
+#define CQHCI_IS 0x10
+#define CQHCI_IS_HAC BIT(0)
+#define CQHCI_IS_TCC BIT(1)
+#define CQHCI_IS_RED BIT(2)
+#define CQHCI_IS_TCL BIT(3)
+#define CQHCI_IS_GCE BIT(4) /* General Crypto Error */
+#define CQHCI_IS_ICCE BIT(5) /* Invalid Crypto Config Error */
+
+#define CQHCI_IS_MASK (CQHCI_IS_TCC | CQHCI_IS_RED | \
+ CQHCI_IS_GCE | CQHCI_IS_ICCE)
+
+/* interrupt status enable */
+#define CQHCI_ISTE 0x14
+
+/* interrupt signal enable */
+#define CQHCI_ISGE 0x18
+
+/* interrupt coalescing */
+#define CQHCI_IC 0x1C
+#define CQHCI_IC_ENABLE BIT(31)
+#define CQHCI_IC_RESET BIT(16)
+#define CQHCI_IC_ICCTHWEN BIT(15)
+#define CQHCI_IC_ICCTH(x) (((x) & 0x1F) << 8)
+#define CQHCI_IC_ICTOVALWEN BIT(7)
+#define CQHCI_IC_ICTOVAL(x) ((x) & 0x7F)
+
+/* task list base address */
+#define CQHCI_TDLBA 0x20
+
+/* task list base address upper */
+#define CQHCI_TDLBAU 0x24
+
+/* door-bell */
+#define CQHCI_TDBR 0x28
+
+/* task completion notification */
+#define CQHCI_TCN 0x2C
+
+/* device queue status */
+#define CQHCI_DQS 0x30
+
+/* device pending tasks */
+#define CQHCI_DPT 0x34
+
+/* task clear */
+#define CQHCI_TCLR 0x38
+
+/* task descriptor processing error */
+#define CQHCI_TDPE 0x3c
+
+/* send status config 1 */
+#define CQHCI_SSC1 0x40
+#define CQHCI_SSC1_CBC_MASK GENMASK(19, 16)
+
+/* send status config 2 */
+#define CQHCI_SSC2 0x44
+
+/* response for dcmd */
+#define CQHCI_CRDCT 0x48
+
+/* response mode error mask */
+#define CQHCI_RMEM 0x50
+
+/* task error info */
+#define CQHCI_TERRI 0x54
+
+#define CQHCI_TERRI_C_INDEX(x) ((x) & GENMASK(5, 0))
+#define CQHCI_TERRI_C_TASK(x) (((x) & GENMASK(12, 8)) >> 8)
+#define CQHCI_TERRI_C_VALID(x) ((x) & BIT(15))
+#define CQHCI_TERRI_D_INDEX(x) (((x) & GENMASK(21, 16)) >> 16)
+#define CQHCI_TERRI_D_TASK(x) (((x) & GENMASK(28, 24)) >> 24)
+#define CQHCI_TERRI_D_VALID(x) ((x) & BIT(31))
+
+/* command response index */
+#define CQHCI_CRI 0x58
+
+/* command response argument */
+#define CQHCI_CRA 0x5C
+
+/* crypto capabilities */
+#define CQHCI_CCAP 0x100
+#define CQHCI_CRYPTOCAP 0x104
+
+#define CQHCI_INT_ALL 0xF
+#define CQHCI_IC_DEFAULT_ICCTH 31
+#define CQHCI_IC_DEFAULT_ICTOVAL 1
+
+/* attribute fields */
+#define CQHCI_VALID(x) (((x) & 1) << 0)
+#define CQHCI_END(x) (((x) & 1) << 1)
+#define CQHCI_INT(x) (((x) & 1) << 2)
+#define CQHCI_ACT(x) (((x) & 0x7) << 3)
+
+/* data command task descriptor fields */
+#define CQHCI_FORCED_PROG(x) (((x) & 1) << 6)
+#define CQHCI_CONTEXT(x) (((x) & 0xF) << 7)
+#define CQHCI_DATA_TAG(x) (((x) & 1) << 11)
+#define CQHCI_DATA_DIR(x) (((x) & 1) << 12)
+#define CQHCI_PRIORITY(x) (((x) & 1) << 13)
+#define CQHCI_QBAR(x) (((x) & 1) << 14)
+#define CQHCI_REL_WRITE(x) (((x) & 1) << 15)
+#define CQHCI_BLK_COUNT(x) (((x) & 0xFFFF) << 16)
+#define CQHCI_BLK_ADDR(x) (((x) & 0xFFFFFFFF) << 32)
+
+/* direct command task descriptor fields */
+#define CQHCI_CMD_INDEX(x) (((x) & 0x3F) << 16)
+#define CQHCI_CMD_TIMING(x) (((x) & 1) << 22)
+#define CQHCI_RESP_TYPE(x) (((x) & 0x3) << 23)
+
+/* crypto task descriptor fields (for bits 64-127 of task descriptor) */
+#define CQHCI_CRYPTO_ENABLE_BIT (1ULL << 47)
+#define CQHCI_CRYPTO_KEYSLOT(x) ((u64)(x) << 32)
+
+/* transfer descriptor fields */
+#define CQHCI_DAT_LENGTH(x) (((x) & 0xFFFF) << 16)
+#define CQHCI_DAT_ADDR_LO(x) (((x) & 0xFFFFFFFF) << 32)
+#define CQHCI_DAT_ADDR_HI(x) (((x) & 0xFFFFFFFF) << 0)
+
+/* CCAP - Crypto Capability 100h */
+union cqhci_crypto_capabilities {
+ __le32 reg_val;
+ struct {
+ u8 num_crypto_cap;
+ u8 config_count;
+ u8 reserved;
+ u8 config_array_ptr;
+ };
+};
+
+enum cqhci_crypto_key_size {
+ CQHCI_CRYPTO_KEY_SIZE_INVALID = 0,
+ CQHCI_CRYPTO_KEY_SIZE_128 = 1,
+ CQHCI_CRYPTO_KEY_SIZE_192 = 2,
+ CQHCI_CRYPTO_KEY_SIZE_256 = 3,
+ CQHCI_CRYPTO_KEY_SIZE_512 = 4,
+};
+
+enum cqhci_crypto_alg {
+ CQHCI_CRYPTO_ALG_AES_XTS = 0,
+ CQHCI_CRYPTO_ALG_BITLOCKER_AES_CBC = 1,
+ CQHCI_CRYPTO_ALG_AES_ECB = 2,
+ CQHCI_CRYPTO_ALG_ESSIV_AES_CBC = 3,
+};
+
+/* x-CRYPTOCAP - Crypto Capability X */
+union cqhci_crypto_cap_entry {
+ __le32 reg_val;
+ struct {
+ u8 algorithm_id;
+ u8 sdus_mask; /* Supported data unit size mask */
+ u8 key_size;
+ u8 reserved;
+ };
+};
+
+#define CQHCI_CRYPTO_CONFIGURATION_ENABLE (1 << 7)
+#define CQHCI_CRYPTO_KEY_MAX_SIZE 64
+/* x-CRYPTOCFG - Crypto Configuration X */
+union cqhci_crypto_cfg_entry {
+ __le32 reg_val[32];
+ struct {
+ u8 crypto_key[CQHCI_CRYPTO_KEY_MAX_SIZE];
+ u8 data_unit_size;
+ u8 crypto_cap_idx;
+ u8 reserved_1;
+ u8 config_enable;
+ u8 reserved_multi_host;
+ u8 reserved_2;
+ u8 vsb[2];
+ u8 reserved_3[56];
+ };
+};
+
+struct cqhci_host_ops;
+struct mmc_host;
+struct mmc_request;
+struct cqhci_slot;
+
+struct cqhci_host {
+ const struct cqhci_host_ops *ops;
+ void __iomem *mmio;
+ struct mmc_host *mmc;
+
+ spinlock_t lock;
+
+ /* relative card address of device */
+ unsigned int rca;
+
+ /* 64 bit DMA */
+ bool dma64;
+ int num_slots;
+ int qcnt;
+
+ u32 dcmd_slot;
+ u32 caps;
+#define CQHCI_TASK_DESC_SZ_128 0x1
+
+ u32 quirks;
+#define CQHCI_QUIRK_SHORT_TXFR_DESC_SZ 0x1
+
+ bool enabled;
+ bool halted;
+ bool init_done;
+ bool activated;
+ bool waiting_for_idle;
+ bool recovery_halt;
+
+ size_t desc_size;
+ size_t data_size;
+
+ u8 *desc_base;
+
+ /* total descriptor size */
+ u8 slot_sz;
+
+ /* 64/128 bit depends on CQHCI_CFG */
+ u8 task_desc_len;
+
+ /* 64 bit on 32-bit arch, 128 bit on 64-bit */
+ u8 link_desc_len;
+
+ u8 *trans_desc_base;
+ /* same length as transfer descriptor */
+ u8 trans_desc_len;
+
+ dma_addr_t desc_dma_base;
+ dma_addr_t trans_desc_dma_base;
+
+ struct completion halt_comp;
+ wait_queue_head_t wait_queue;
+ struct cqhci_slot *slot;
+
+#ifdef CONFIG_MMC_CRYPTO
+ union cqhci_crypto_capabilities crypto_capabilities;
+ union cqhci_crypto_cap_entry *crypto_cap_array;
+ u32 crypto_cfg_register;
+#endif
+};
+
+struct cqhci_host_ops {
+ void (*dumpregs)(struct mmc_host *mmc);
+ void (*write_l)(struct cqhci_host *host, u32 val, int reg);
+ u32 (*read_l)(struct cqhci_host *host, int reg);
+ void (*enable)(struct mmc_host *mmc);
+ void (*disable)(struct mmc_host *mmc, bool recovery);
+ void (*update_dcmd_desc)(struct mmc_host *mmc, struct mmc_request *mrq,
+ u64 *data);
+ void (*pre_enable)(struct mmc_host *mmc);
+ void (*post_disable)(struct mmc_host *mmc);
+#ifdef CONFIG_MMC_CRYPTO
+ int (*program_key)(struct cqhci_host *cq_host,
+ const union cqhci_crypto_cfg_entry *cfg, int slot);
+#endif
+};
+
+static inline void cqhci_writel(struct cqhci_host *host, u32 val, int reg)
+{
+ if (unlikely(host->ops->write_l))
+ host->ops->write_l(host, val, reg);
+ else
+ writel_relaxed(val, host->mmio + reg);
+}
+
+static inline u32 cqhci_readl(struct cqhci_host *host, int reg)
+{
+ if (unlikely(host->ops->read_l))
+ return host->ops->read_l(host, reg);
+ else
+ return readl_relaxed(host->mmio + reg);
+}
+
+struct platform_device;
+
+irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error,
+ int data_error);
+int cqhci_init(struct cqhci_host *cq_host, struct mmc_host *mmc, bool dma64);
+struct cqhci_host *cqhci_pltfm_init(struct platform_device *pdev);
+int cqhci_deactivate(struct mmc_host *mmc);
+static inline int cqhci_suspend(struct mmc_host *mmc)
+{
+ return cqhci_deactivate(mmc);
+}
+int cqhci_resume(struct mmc_host *mmc);
+
+#endif