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This is specific for QAT GEN4 Virtual Functions (VFs). This introduces a migration data manager which is used to handle the device state during migration. The manager ensures that the device state is stored in a format that can be restored in the destination node. The VF state is organized into a hierarchical structure that includes a preamble, a general state section, a MISC bar section and an ETR bar section. The latter contains the state of the 4 ring pairs contained on a VF. Here is a graphical representation of the state: preamble | general state section | leaf state | MISC bar state section| leaf state | ETR bar state section | bank0 state section | leaf state | bank1 state section | leaf state | bank2 state section | leaf state | bank3 state section | leaf state In addition to the implementation of the qat_migdev_ops interface and the state manager framework, add a mutex in pfvf to avoid pf2vf messages during migration. Signed-off-by: Xin Zeng Reviewed-by: Giovanni Cabiddu --- .../intel/qat/qat_420xx/adf_420xx_hw_data.c | 2 + .../intel/qat/qat_4xxx/adf_4xxx_hw_data.c | 2 + drivers/crypto/intel/qat/qat_common/Makefile | 2 + .../intel/qat/qat_common/adf_accel_devices.h | 6 + .../intel/qat/qat_common/adf_gen4_hw_data.h | 10 + .../intel/qat/qat_common/adf_gen4_vf_mig.c | 1010 +++++++++++++++++ .../intel/qat/qat_common/adf_mstate_mgr.c | 318 ++++++ .../intel/qat/qat_common/adf_mstate_mgr.h | 89 ++ .../crypto/intel/qat/qat_common/adf_sriov.c | 7 +- 9 files changed, 1445 insertions(+), 1 deletion(-) create mode 100644 drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.c create mode 100644 drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.c create mode 100644 drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.h diff --git a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c index 9ccbf5998d5c..d255cb3ebd9c 100644 --- a/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c +++ b/drivers/crypto/intel/qat/qat_420xx/adf_420xx_hw_data.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "adf_420xx_hw_data.h" #include "icp_qat_hw.h" @@ -488,6 +489,7 @@ void adf_init_hw_data_420xx(struct adf_hw_device_data *hw_data, u32 dev_id) adf_gen4_init_dc_ops(&hw_data->dc_ops); adf_gen4_init_ras_ops(&hw_data->ras_ops); adf_gen4_init_tl_data(&hw_data->tl_data); + adf_gen4_init_vf_mig_ops(&hw_data->vfmig_ops); adf_init_rl_data(&hw_data->rl_data); } diff --git a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c index eaf055e6f938..1e77e189a938 100644 --- a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c +++ b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c @@ -17,6 +17,7 @@ #include "adf_gen4_ras.h" #include #include +#include #include "adf_4xxx_hw_data.h" #include "icp_qat_hw.h" @@ -472,6 +473,7 @@ void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data, u32 dev_id) adf_gen4_init_dc_ops(&hw_data->dc_ops); adf_gen4_init_ras_ops(&hw_data->ras_ops); adf_gen4_init_tl_data(&hw_data->tl_data); + adf_gen4_init_vf_mig_ops(&hw_data->vfmig_ops); adf_init_rl_data(&hw_data->rl_data); } diff --git a/drivers/crypto/intel/qat/qat_common/Makefile b/drivers/crypto/intel/qat/qat_common/Makefile index 9fba31d4ac7f..6f9266edc9f1 100644 --- a/drivers/crypto/intel/qat/qat_common/Makefile +++ b/drivers/crypto/intel/qat/qat_common/Makefile @@ -20,12 +20,14 @@ intel_qat-objs := adf_cfg.o \ adf_gen4_config.o \ adf_gen4_hw_csr_data.o \ adf_gen4_hw_data.o \ + adf_gen4_vf_mig.o \ adf_gen4_pm.o \ adf_gen2_dc.o \ adf_gen4_dc.o \ adf_gen4_ras.o \ adf_gen4_timer.o \ adf_clock.o \ + adf_mstate_mgr.o \ qat_crypto.o \ qat_compression.o \ qat_comp_algs.o \ diff --git a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h index b08fea10121e..7830ecb1a1f1 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h @@ -412,11 +412,17 @@ struct adf_fw_loader_data { struct adf_accel_vf_info { struct adf_accel_dev *accel_dev; struct mutex pf2vf_lock; /* protect CSR access for PF2VF messages */ + struct mutex pfvf_mig_lock; /* protects PFVF state for migration */ struct ratelimit_state vf2pf_ratelimit; u32 vf_nr; bool init; bool restarting; u8 vf_compat_ver; + /* + * Private area used for device migration. + * Memory allocation and free is managed by migration driver. + */ + void *mig_priv; }; struct adf_dc_data { diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.h b/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.h index e8cb930e80c9..8b10926cedba 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.h +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.h @@ -86,6 +86,7 @@ #define ADF_RP_INT_SRC_SEL_F_RISE_MASK BIT(2) #define ADF_RP_INT_SRC_SEL_F_FALL_MASK GENMASK(2, 0) #define ADF_RP_INT_SRC_SEL_RANGE_WIDTH 4 +#define ADF_COALESCED_POLL_TIMEOUT_US (1 * USEC_PER_SEC) #define ADF_COALESCED_POLL_DELAY_US 1000 #define ADF_WQM_CSR_RPINTSOU(bank) (0x200000 + ((bank) << 12)) #define ADF_WQM_CSR_RP_IDX_RX 1 @@ -120,6 +121,15 @@ /* PF2VM communication channel */ #define ADF_GEN4_PF2VM_OFFSET(i) (0x40B010 + (i) * 0x20) #define ADF_GEN4_VM2PF_OFFSET(i) (0x40B014 + (i) * 0x20) +#define ADF_GEN4_VINTMSKPF2VM_OFFSET(i) (0x40B00C + (i) * 0x20) +#define ADF_GEN4_VINTSOUPF2VM_OFFSET(i) (0x40B008 + (i) * 0x20) +#define ADF_GEN4_VINTMSK_OFFSET(i) (0x40B004 + (i) * 0x20) +#define ADF_GEN4_VINTSOU_OFFSET(i) (0x40B000 + (i) * 0x20) + +struct adf_gen4_vfmig { + struct adf_mstate_mgr *mstate_mgr; + bool bank_stopped[ADF_GEN4_NUM_BANKS_PER_VF]; +}; void adf_gen4_set_ssm_wdtimer(struct adf_accel_dev *accel_dev); diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.c b/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.c new file mode 100644 index 000000000000..78a39cfe196f --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.c @@ -0,0 +1,1010 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2024 Intel Corporation */ +#include +#include +#include +#include +#include +#include +#include + +#include "adf_accel_devices.h" +#include "adf_common_drv.h" +#include "adf_gen4_hw_data.h" +#include "adf_gen4_pfvf.h" +#include "adf_pfvf_utils.h" +#include "adf_mstate_mgr.h" +#include "adf_gen4_vf_mig.h" + +#define ADF_GEN4_VF_MSTATE_SIZE 4096 +#define ADF_GEN4_PFVF_RSP_TIMEOUT_US 5000 + +static int adf_gen4_vfmig_save_setup(struct qat_mig_dev *mdev); +static int adf_gen4_vfmig_load_setup(struct qat_mig_dev *mdev, int len); + +static int adf_gen4_vfmig_init_device(struct qat_mig_dev *mdev) +{ + u8 *state; + + state = kmalloc(ADF_GEN4_VF_MSTATE_SIZE, GFP_KERNEL); + if (!state) + return -ENOMEM; + + mdev->state = state; + mdev->state_size = ADF_GEN4_VF_MSTATE_SIZE; + mdev->setup_size = 0; + mdev->remote_setup_size = 0; + + return 0; +} + +static void adf_gen4_vfmig_cleanup_device(struct qat_mig_dev *mdev) +{ + kfree(mdev->state); + mdev->state = NULL; +} + +static void adf_gen4_vfmig_reset_device(struct qat_mig_dev *mdev) +{ + mdev->setup_size = 0; + mdev->remote_setup_size = 0; +} + +static int adf_gen4_vfmig_open_device(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + + vf_info = &accel_dev->pf.vf_info[mdev->vf_id]; + + vfmig = kzalloc(sizeof(*vfmig), GFP_KERNEL); + if (!vfmig) + return -ENOMEM; + + vfmig->mstate_mgr = adf_mstate_mgr_new(mdev->state, mdev->state_size); + if (!vfmig->mstate_mgr) { + kfree(vfmig); + return -ENOMEM; + } + vf_info->mig_priv = vfmig; + mdev->setup_size = 0; + mdev->remote_setup_size = 0; + + return 0; +} + +static void adf_gen4_vfmig_close_device(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + + vf_info = &accel_dev->pf.vf_info[mdev->vf_id]; + if (vf_info->mig_priv) { + vfmig = vf_info->mig_priv; + adf_mstate_mgr_destroy(vfmig->mstate_mgr); + kfree(vfmig); + vf_info->mig_priv = NULL; + } +} + +static int adf_gen4_vfmig_suspend_device(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vf_mig; + u32 vf_nr = mdev->vf_id; + int ret, i; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vf_mig = vf_info->mig_priv; + + /* Stop all inflight jobs */ + for (i = 0; i < hw_data->num_banks_per_vf; i++) { + u32 pf_bank_nr = i + vf_nr * hw_data->num_banks_per_vf; + + ret = adf_gen4_bank_drain_start(accel_dev, pf_bank_nr, + ADF_RPRESET_POLL_TIMEOUT_US); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to drain bank %d for vf_nr %d\n", i, + vf_nr); + return ret; + } + vf_mig->bank_stopped[i] = true; + + adf_gen4_bank_quiesce_coal_timer(accel_dev, pf_bank_nr, + ADF_COALESCED_POLL_TIMEOUT_US); + } + + return 0; +} + +static int adf_gen4_vfmig_resume_device(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vf_mig; + u32 vf_nr = mdev->vf_id; + int i; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vf_mig = vf_info->mig_priv; + + for (i = 0; i < hw_data->num_banks_per_vf; i++) { + u32 pf_bank_nr = i + vf_nr * hw_data->num_banks_per_vf; + + if (vf_mig->bank_stopped[i]) { + adf_gen4_bank_drain_finish(accel_dev, pf_bank_nr); + vf_mig->bank_stopped[i] = false; + } + } + + return 0; +} + +struct adf_vf_bank_info { + struct adf_accel_dev *accel_dev; + u32 vf_nr; + u32 bank_nr; +}; + +struct mig_user_sla { + enum adf_base_services srv; + u64 rp_mask; + u32 cir; + u32 pir; +}; + +static int adf_mstate_sla_check(struct adf_mstate_mgr *sub_mgr, u8 *src_buf, + u32 src_size, void *opaque) +{ + struct adf_mstate_vreginfo _sinfo = { src_buf, src_size }; + struct adf_mstate_vreginfo *sinfo = &_sinfo, *dinfo = opaque; + u32 src_sla_cnt = sinfo->size / sizeof(struct mig_user_sla); + u32 dst_sla_cnt = dinfo->size / sizeof(struct mig_user_sla); + struct mig_user_sla *src_slas = sinfo->addr; + struct mig_user_sla *dst_slas = dinfo->addr; + int i, j; + + for (i = 0; i < src_sla_cnt; i++) { + for (j = 0; j < dst_sla_cnt; j++) { + if (src_slas[i].srv != dst_slas[j].srv || + src_slas[i].rp_mask != dst_slas[j].rp_mask) + continue; + + if (src_slas[i].cir > dst_slas[j].cir || + src_slas[i].pir > dst_slas[j].pir) { + pr_err("QAT: DST VF rate limiting mismatch.\n"); + return -EINVAL; + } + break; + } + + if (j == dst_sla_cnt) { + pr_err("QAT: SRC VF rate limiting mismatch - SRC srv %d and rp_mask 0x%llx.\n", + src_slas[i].srv, src_slas[i].rp_mask); + return -EINVAL; + } + } + + return 0; +} + +static inline int adf_mstate_check_cap_size(u32 src_sz, u32 dst_sz, u32 max_sz) +{ + if (src_sz > max_sz || dst_sz > max_sz) + return -EINVAL; + else + return 0; +} + +static int adf_mstate_compatver_check(struct adf_mstate_mgr *sub_mgr, + u8 *src_buf, u32 src_sz, void *opaque) +{ + struct adf_mstate_vreginfo *info = opaque; + u8 compat = 0; + u8 *pcompat; + + if (src_sz != info->size) { + pr_debug("QAT: State mismatch (compat version size), current %u, expected %u\n", + src_sz, info->size); + return -EINVAL; + } + + memcpy(info->addr, src_buf, info->size); + pcompat = info->addr; + if (*pcompat == 0) { + pr_warn("QAT: Unable to determine the version of VF\n"); + return 0; + } + + compat = adf_vf_compat_checker(*pcompat); + if (compat == ADF_PF2VF_VF_INCOMPATIBLE) { + pr_debug("QAT: SRC VF driver (ver=%u) is incompatible with DST PF driver (ver=%u)\n", + *pcompat, ADF_PFVF_COMPAT_THIS_VERSION); + return -EINVAL; + } + + if (compat == ADF_PF2VF_VF_COMPAT_UNKNOWN) + pr_debug("QAT: SRC VF driver (ver=%u) is newer than DST PF driver (ver=%u)\n", + *pcompat, ADF_PFVF_COMPAT_THIS_VERSION); + + return 0; +} + +/* + * adf_mstate_capmask_compare() - compare QAT device capability mask + * @sinfo: Pointer to source capability info + * @dinfo: Pointer to target capability info + * + * This function compares the capability mask between source VF and target VF + * + * Returns: 0 if target capability mask is identical to source capability mask, + * 1 if target mask can represent all the capabilities represented by source mask, + * -1 if target mask can't represent all the capabilities represented by source + * mask. + */ +static int adf_mstate_capmask_compare(struct adf_mstate_vreginfo *sinfo, + struct adf_mstate_vreginfo *dinfo) +{ + u64 src = 0, dst = 0; + + if (adf_mstate_check_cap_size(sinfo->size, dinfo->size, sizeof(u64))) { + pr_debug("QAT: Unexpected capability size %u %u %zu\n", + sinfo->size, dinfo->size, sizeof(u64)); + return -1; + } + + memcpy(&src, sinfo->addr, sinfo->size); + memcpy(&dst, dinfo->addr, dinfo->size); + + pr_debug("QAT: Check cap compatibility of cap %llu %llu\n", src, dst); + + if (src == dst) + return 0; + + if ((src | dst) == dst) + return 1; + + return -1; +} + +static int adf_mstate_capmask_superset(struct adf_mstate_mgr *sub_mgr, u8 *buf, + u32 size, void *opa) +{ + struct adf_mstate_vreginfo sinfo = { buf, size }; + + if (adf_mstate_capmask_compare(&sinfo, opa) >= 0) + return 0; + + return -EINVAL; +} + +static int adf_mstate_capmask_equal(struct adf_mstate_mgr *sub_mgr, u8 *buf, + u32 size, void *opa) +{ + struct adf_mstate_vreginfo sinfo = { buf, size }; + + if (adf_mstate_capmask_compare(&sinfo, opa) == 0) + return 0; + + return -EINVAL; +} + +static int adf_mstate_set_vreg(struct adf_mstate_mgr *sub_mgr, u8 *buf, + u32 size, void *opa) +{ + struct adf_mstate_vreginfo *info = opa; + + if (size != info->size) { + pr_debug("QAT: Unexpected cap size %u %u\n", size, info->size); + return -EINVAL; + } + memcpy(info->addr, buf, info->size); + + return 0; +} + +static u32 adf_gen4_vfmig_get_slas(struct adf_accel_dev *accel_dev, u32 vf_nr, + struct mig_user_sla *pmig_slas) +{ + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_rl *rl_data = accel_dev->rate_limiting; + struct rl_sla **sla_type_arr = NULL; + u64 rp_mask, rp_index; + u32 max_num_sla; + u32 sla_cnt = 0; + int i, j; + + if (!accel_dev->rate_limiting) + return 0; + + rp_index = vf_nr * hw_data->num_banks_per_vf; + max_num_sla = adf_rl_get_sla_arr_of_type(rl_data, RL_LEAF, &sla_type_arr); + + for (i = 0; i < max_num_sla; i++) { + if (!sla_type_arr[i]) + continue; + + rp_mask = 0; + for (j = 0; j < sla_type_arr[i]->ring_pairs_cnt; j++) + rp_mask |= BIT(sla_type_arr[i]->ring_pairs_ids[j]); + + if (rp_mask & GENMASK_ULL(rp_index + 3, rp_index)) { + pmig_slas->rp_mask = rp_mask; + pmig_slas->cir = sla_type_arr[i]->cir; + pmig_slas->pir = sla_type_arr[i]->pir; + pmig_slas->srv = sla_type_arr[i]->srv; + pmig_slas++; + sla_cnt++; + } + } + + return sla_cnt; +} + +static int adf_gen4_vfmig_load_etr_regs(struct adf_mstate_mgr *sub_mgr, + u8 *state, u32 size, void *opa) +{ + struct adf_vf_bank_info *vf_bank_info = opa; + struct adf_accel_dev *accel_dev = vf_bank_info->accel_dev; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + u32 pf_bank_nr; + int ret; + + pf_bank_nr = vf_bank_info->bank_nr + vf_bank_info->vf_nr * hw_data->num_banks_per_vf; + ret = hw_data->bank_state_restore(accel_dev, pf_bank_nr, + (struct bank_state *)state); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to load regs for vf%d bank%d\n", + vf_bank_info->vf_nr, vf_bank_info->bank_nr); + return ret; + } + + return 0; +} + +static int adf_gen4_vfmig_load_etr_bank(struct adf_accel_dev *accel_dev, + u32 vf_nr, u32 bank_nr, + struct adf_mstate_mgr *mstate_mgr) +{ + struct adf_vf_bank_info vf_bank_info = {accel_dev, vf_nr, bank_nr}; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_mstate_mgr sub_sects_mgr; + char bank_ids[ADF_MSTATE_ID_LEN]; + + snprintf(bank_ids, sizeof(bank_ids), ADF_MSTATE_BANK_IDX_IDS "%x", bank_nr); + subsec = adf_mstate_sect_lookup(mstate_mgr, bank_ids, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), + "Failed to lookup sec %s for vf%d bank%d\n", + ADF_MSTATE_BANK_IDX_IDS, vf_nr, bank_nr); + return -EINVAL; + } + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, subsec); + l2_subsec = adf_mstate_sect_lookup(&sub_sects_mgr, ADF_MSTATE_ETR_REGS_IDS, + adf_gen4_vfmig_load_etr_regs, + &vf_bank_info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), + "Failed to add sec %s for vf%d bank%d\n", + ADF_MSTATE_ETR_REGS_IDS, vf_nr, bank_nr); + return -EINVAL; + } + + return 0; +} + +static int adf_gen4_vfmig_load_etr(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_mgr sub_sects_mgr; + struct adf_mstate_sect_h *subsec; + int ret, i; + + subsec = adf_mstate_sect_lookup(mstate_mgr, ADF_MSTATE_ETRB_IDS, NULL, + NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + ADF_MSTATE_ETRB_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, subsec); + for (i = 0; i < hw_data->num_banks_per_vf; i++) { + ret = adf_gen4_vfmig_load_etr_bank(accel_dev, vf_nr, i, + &sub_sects_mgr); + if (ret) + return ret; + } + + return 0; +} + +static int adf_gen4_vfmig_load_misc(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + void __iomem *csr = adf_get_pmisc_base(accel_dev); + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_mstate_mgr sub_sects_mgr; + struct { + char *id; + u64 ofs; + } misc_states[] = { + {ADF_MSTATE_VINTMSK_IDS, ADF_GEN4_VINTMSK_OFFSET(vf_nr)}, + {ADF_MSTATE_VINTMSK_PF2VM_IDS, ADF_GEN4_VINTMSKPF2VM_OFFSET(vf_nr)}, + {ADF_MSTATE_PF2VM_IDS, ADF_GEN4_PF2VM_OFFSET(vf_nr)}, + {ADF_MSTATE_VM2PF_IDS, ADF_GEN4_VM2PF_OFFSET(vf_nr)}, + }; + int i; + + subsec = adf_mstate_sect_lookup(mstate_mgr, ADF_MSTATE_MISCB_IDS, NULL, + NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + ADF_MSTATE_MISCB_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, subsec); + for (i = 0; i < ARRAY_SIZE(misc_states); i++) { + struct adf_mstate_vreginfo info; + u32 regv; + + info.addr = ®v; + info.size = sizeof(regv); + l2_subsec = adf_mstate_sect_lookup(&sub_sects_mgr, + misc_states[i].id, + adf_mstate_set_vreg, + &info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), + "Failed to load sec %s\n", misc_states[i].id); + return -EINVAL; + } + ADF_CSR_WR(csr, misc_states[i].ofs, regv); + } + + return 0; +} + +static int adf_gen4_vfmig_load_generic(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct mig_user_sla dst_slas[RL_RP_CNT_PER_LEAF_MAX] = { }; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_mstate_mgr sub_sects_mgr; + u32 dst_sla_cnt; + struct { + char *id; + int (*action)(struct adf_mstate_mgr *sub_mgr, u8 *buf, u32 size, void *opa); + struct adf_mstate_vreginfo info; + } gen_states[] = { + {ADF_MSTATE_IOV_INIT_IDS, adf_mstate_set_vreg, + {&vf_info->init, sizeof(vf_info->init)}}, + {ADF_MSTATE_COMPAT_VER_IDS, adf_mstate_compatver_check, + {&vf_info->vf_compat_ver, sizeof(vf_info->vf_compat_ver)}}, + {ADF_MSTATE_SLA_IDS, adf_mstate_sla_check, {dst_slas, 0}}, + }; + int i; + + subsec = adf_mstate_sect_lookup(mstate_mgr, ADF_MSTATE_GEN_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + ADF_MSTATE_GEN_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, subsec); + for (i = 0; i < ARRAY_SIZE(gen_states); i++) { + if (gen_states[i].info.addr == dst_slas) { + dst_sla_cnt = adf_gen4_vfmig_get_slas(accel_dev, vf_nr, dst_slas); + gen_states[i].info.size = dst_sla_cnt * sizeof(struct mig_user_sla); + } + + l2_subsec = adf_mstate_sect_lookup(&sub_sects_mgr, + gen_states[i].id, + gen_states[i].action, + &gen_states[i].info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + gen_states[i].id); + return -EINVAL; + } + } + + return 0; +} + +static int adf_gen4_vfmig_load_config(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_mstate_mgr sub_sects_mgr; + struct { + char *id; + int (*action)(struct adf_mstate_mgr *sub_mgr, u8 *buf, u32 size, void *opa); + struct adf_mstate_vreginfo info; + } setups[] = { + {ADF_MSTATE_GEN_CAP_IDS, adf_mstate_capmask_superset, + {&hw_data->accel_capabilities_mask, sizeof(hw_data->accel_capabilities_mask)}}, + {ADF_MSTATE_GEN_SVCMAP_IDS, adf_mstate_capmask_equal, + {&hw_data->ring_to_svc_map, sizeof(hw_data->ring_to_svc_map)}}, + {ADF_MSTATE_GEN_EXTDC_IDS, adf_mstate_capmask_superset, + {&hw_data->extended_dc_capabilities, sizeof(hw_data->extended_dc_capabilities)}}, + }; + int i; + + subsec = adf_mstate_sect_lookup(mstate_mgr, ADF_MSTATE_CONFIG_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + ADF_MSTATE_CONFIG_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, subsec); + for (i = 0; i < ARRAY_SIZE(setups); i++) { + l2_subsec = adf_mstate_sect_lookup(&sub_sects_mgr, setups[i].id, + setups[i].action, &setups[i].info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to load sec %s\n", + setups[i].id); + return -EINVAL; + } + } + + return 0; +} + +static int adf_gen4_vfmig_save_etr_regs(struct adf_mstate_mgr *subs, u8 *state, + u32 size, void *opa) +{ + struct adf_vf_bank_info *vf_bank_info = opa; + struct adf_accel_dev *accel_dev = vf_bank_info->accel_dev; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + u32 pf_bank_nr; + int ret; + + pf_bank_nr = vf_bank_info->bank_nr; + pf_bank_nr += vf_bank_info->vf_nr * hw_data->num_banks_per_vf; + + ret = hw_data->bank_state_save(accel_dev, pf_bank_nr, + (struct bank_state *)state); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to save regs for vf%d bank%d\n", + vf_bank_info->vf_nr, vf_bank_info->bank_nr); + return ret; + } + + return sizeof(struct bank_state); +} + +static int adf_gen4_vfmig_save_etr_bank(struct adf_accel_dev *accel_dev, + u32 vf_nr, u32 bank_nr, + struct adf_mstate_mgr *mstate_mgr) +{ + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_vf_bank_info vf_bank_info; + struct adf_mstate_mgr sub_sects_mgr; + char bank_ids[ADF_MSTATE_ID_LEN]; + + snprintf(bank_ids, sizeof(bank_ids), ADF_MSTATE_BANK_IDX_IDS "%x", bank_nr); + + subsec = adf_mstate_sect_add(mstate_mgr, bank_ids, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), + "Failed to add sec %s for vf%d bank%d\n", + ADF_MSTATE_BANK_IDX_IDS, vf_nr, bank_nr); + return -EINVAL; + } + + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mstate_mgr); + vf_bank_info.accel_dev = accel_dev; + vf_bank_info.vf_nr = vf_nr; + vf_bank_info.bank_nr = bank_nr; + l2_subsec = adf_mstate_sect_add(&sub_sects_mgr, ADF_MSTATE_ETR_REGS_IDS, + adf_gen4_vfmig_save_etr_regs, + &vf_bank_info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), + "Failed to add sec %s for vf%d bank%d\n", + ADF_MSTATE_ETR_REGS_IDS, vf_nr, bank_nr); + return -EINVAL; + } + adf_mstate_sect_update(mstate_mgr, &sub_sects_mgr, subsec); + + return 0; +} + +static int adf_gen4_vfmig_save_etr(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_mgr sub_sects_mgr; + struct adf_mstate_sect_h *subsec; + int ret, i; + + subsec = adf_mstate_sect_add(mstate_mgr, ADF_MSTATE_ETRB_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + ADF_MSTATE_ETRB_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mstate_mgr); + for (i = 0; i < hw_data->num_banks_per_vf; i++) { + ret = adf_gen4_vfmig_save_etr_bank(accel_dev, vf_nr, i, + &sub_sects_mgr); + if (ret) + return ret; + } + adf_mstate_sect_update(mstate_mgr, &sub_sects_mgr, subsec); + + return 0; +} + +static int adf_gen4_vfmig_save_misc(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + void __iomem *csr = adf_get_pmisc_base(accel_dev); + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct adf_mstate_mgr sub_sects_mgr; + struct { + char *id; + u64 offset; + } misc_states[] = { + {ADF_MSTATE_VINTSRC_IDS, ADF_GEN4_VINTSOU_OFFSET(vf_nr)}, + {ADF_MSTATE_VINTMSK_IDS, ADF_GEN4_VINTMSK_OFFSET(vf_nr)}, + {ADF_MSTATE_VINTSRC_PF2VM_IDS, ADF_GEN4_VINTSOUPF2VM_OFFSET(vf_nr)}, + {ADF_MSTATE_VINTMSK_PF2VM_IDS, ADF_GEN4_VINTMSKPF2VM_OFFSET(vf_nr)}, + {ADF_MSTATE_PF2VM_IDS, ADF_GEN4_PF2VM_OFFSET(vf_nr)}, + {ADF_MSTATE_VM2PF_IDS, ADF_GEN4_VM2PF_OFFSET(vf_nr)}, + }; + ktime_t time_exp; + int i; + + subsec = adf_mstate_sect_add(mstate_mgr, ADF_MSTATE_MISCB_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + ADF_MSTATE_MISCB_IDS); + return -EINVAL; + } + + time_exp = ktime_add_us(ktime_get(), ADF_GEN4_PFVF_RSP_TIMEOUT_US); + while (!mutex_trylock(&vf_info->pfvf_mig_lock)) { + if (ktime_after(ktime_get(), time_exp)) { + dev_err(&GET_DEV(accel_dev), "Failed to get pfvf mig lock\n"); + return -ETIMEDOUT; + } + usleep_range(500, 1000); + } + + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mstate_mgr); + for (i = 0; i < ARRAY_SIZE(misc_states); i++) { + struct adf_mstate_vreginfo info; + u32 regv; + + info.addr = ®v; + info.size = sizeof(regv); + regv = ADF_CSR_RD(csr, misc_states[i].offset); + + l2_subsec = adf_mstate_sect_add_vreg(&sub_sects_mgr, + misc_states[i].id, + &info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + misc_states[i].id); + mutex_unlock(&vf_info->pfvf_mig_lock); + return -EINVAL; + } + } + + mutex_unlock(&vf_info->pfvf_mig_lock); + adf_mstate_sect_update(mstate_mgr, &sub_sects_mgr, subsec); + + return 0; +} + +static int adf_gen4_vfmig_save_generic(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_mgr sub_sects_mgr; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct mig_user_sla src_slas[RL_RP_CNT_PER_LEAF_MAX] = { }; + u32 src_sla_cnt; + struct { + char *id; + struct adf_mstate_vreginfo info; + } gen_states[] = { + {ADF_MSTATE_IOV_INIT_IDS, + {&vf_info->init, sizeof(vf_info->init)}}, + {ADF_MSTATE_COMPAT_VER_IDS, + {&vf_info->vf_compat_ver, sizeof(vf_info->vf_compat_ver)}}, + {ADF_MSTATE_SLA_IDS, {src_slas, 0}}, + }; + int i; + + subsec = adf_mstate_sect_add(mstate_mgr, ADF_MSTATE_GEN_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + ADF_MSTATE_GEN_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mstate_mgr); + for (i = 0; i < ARRAY_SIZE(gen_states); i++) { + if (gen_states[i].info.addr == src_slas) { + src_sla_cnt = adf_gen4_vfmig_get_slas(accel_dev, vf_nr, src_slas); + gen_states[i].info.size = src_sla_cnt * sizeof(struct mig_user_sla); + } + + l2_subsec = adf_mstate_sect_add_vreg(&sub_sects_mgr, + gen_states[i].id, + &gen_states[i].info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + gen_states[i].id); + return -EINVAL; + } + } + adf_mstate_sect_update(mstate_mgr, &sub_sects_mgr, subsec); + + return 0; +} + +static int adf_gen4_vfmig_save_config(struct adf_accel_dev *accel_dev, u32 vf_nr) +{ + struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr]; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct adf_gen4_vfmig *vfmig = vf_info->mig_priv; + struct adf_mstate_mgr *mstate_mgr = vfmig->mstate_mgr; + struct adf_mstate_mgr sub_sects_mgr; + struct adf_mstate_sect_h *subsec, *l2_subsec; + struct { + char *id; + struct adf_mstate_vreginfo info; + } setups[] = { + {ADF_MSTATE_GEN_CAP_IDS, + {&hw_data->accel_capabilities_mask, sizeof(hw_data->accel_capabilities_mask)}}, + {ADF_MSTATE_GEN_SVCMAP_IDS, + {&hw_data->ring_to_svc_map, sizeof(hw_data->ring_to_svc_map)}}, + {ADF_MSTATE_GEN_EXTDC_IDS, + {&hw_data->extended_dc_capabilities, sizeof(hw_data->extended_dc_capabilities)}}, + }; + int i; + + subsec = adf_mstate_sect_add(mstate_mgr, ADF_MSTATE_CONFIG_IDS, NULL, NULL); + if (!subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + ADF_MSTATE_CONFIG_IDS); + return -EINVAL; + } + + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mstate_mgr); + for (i = 0; i < ARRAY_SIZE(setups); i++) { + l2_subsec = adf_mstate_sect_add_vreg(&sub_sects_mgr, setups[i].id, + &setups[i].info); + if (!l2_subsec) { + dev_err(&GET_DEV(accel_dev), "Failed to add sec %s\n", + setups[i].id); + return -EINVAL; + } + } + adf_mstate_sect_update(mstate_mgr, &sub_sects_mgr, subsec); + + return 0; +} + +static int adf_gen4_vfmig_save_state(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + u32 vf_nr = mdev->vf_id; + int ret; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vfmig = vf_info->mig_priv; + + ret = adf_gen4_vfmig_save_setup(mdev); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to save setup for vf_nr %d\n", vf_nr); + return ret; + } + + adf_mstate_mgr_init(vfmig->mstate_mgr, mdev->state + mdev->setup_size, + mdev->state_size - mdev->setup_size); + if (!adf_mstate_preamble_add(vfmig->mstate_mgr)) + return -EINVAL; + + ret = adf_gen4_vfmig_save_generic(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to save generic state for vf_nr %d\n", vf_nr); + return ret; + } + + ret = adf_gen4_vfmig_save_misc(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to save misc bar state for vf_nr %d\n", vf_nr); + return ret; + } + + ret = adf_gen4_vfmig_save_etr(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to save etr bar state for vf_nr %d\n", vf_nr); + return ret; + } + + adf_mstate_preamble_update(vfmig->mstate_mgr); + + return 0; +} + +static int adf_gen4_vfmig_load_state(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + u32 vf_nr = mdev->vf_id; + int ret; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vfmig = vf_info->mig_priv; + + ret = adf_gen4_vfmig_load_setup(mdev, mdev->state_size); + if (ret) { + dev_err(&GET_DEV(accel_dev), "Failed to load setup for vf_nr %d\n", + vf_nr); + return ret; + } + + ret = adf_mstate_mgr_init_from_remote(vfmig->mstate_mgr, + mdev->state + mdev->remote_setup_size, + mdev->state_size - mdev->remote_setup_size, + NULL, NULL); + if (ret) { + dev_err(&GET_DEV(accel_dev), "Invalid state for vf_nr %d\n", + vf_nr); + return ret; + } + + ret = adf_gen4_vfmig_load_generic(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to load general state for vf_nr %d\n", vf_nr); + return ret; + } + + ret = adf_gen4_vfmig_load_misc(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to load misc bar state for vf_nr %d\n", vf_nr); + return ret; + } + + ret = adf_gen4_vfmig_load_etr(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to load etr bar state for vf_nr %d\n", vf_nr); + return ret; + } + + return 0; +} + +static int adf_gen4_vfmig_save_setup(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + u32 vf_nr = mdev->vf_id; + int ret; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vfmig = vf_info->mig_priv; + + if (mdev->setup_size) + return 0; + + adf_mstate_mgr_init(vfmig->mstate_mgr, mdev->state, mdev->state_size); + if (!adf_mstate_preamble_add(vfmig->mstate_mgr)) + return -EINVAL; + + ret = adf_gen4_vfmig_save_config(accel_dev, mdev->vf_id); + if (ret) + return ret; + + adf_mstate_preamble_update(vfmig->mstate_mgr); + mdev->setup_size = adf_mstate_state_size(vfmig->mstate_mgr); + + return 0; +} + +static int adf_gen4_vfmig_load_setup(struct qat_mig_dev *mdev, int len) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + struct adf_accel_vf_info *vf_info; + struct adf_gen4_vfmig *vfmig; + u32 vf_nr = mdev->vf_id; + u32 setup_size; + int ret; + + vf_info = &accel_dev->pf.vf_info[vf_nr]; + vfmig = vf_info->mig_priv; + + if (mdev->remote_setup_size) + return 0; + + if (len < sizeof(struct adf_mstate_preh)) + return -EAGAIN; + + adf_mstate_mgr_init(vfmig->mstate_mgr, mdev->state, mdev->state_size); + setup_size = adf_mstate_state_size_from_remote(vfmig->mstate_mgr); + if (setup_size > mdev->state_size) + return -EINVAL; + + if (len < setup_size) + return -EAGAIN; + + ret = adf_mstate_mgr_init_from_remote(vfmig->mstate_mgr, mdev->state, + setup_size, NULL, NULL); + if (ret) { + dev_err(&GET_DEV(accel_dev), "Invalide setup for vf_nr %d\n", + vf_nr); + return ret; + } + + mdev->remote_setup_size = setup_size; + + ret = adf_gen4_vfmig_load_config(accel_dev, vf_nr); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to load config for vf_nr %d\n", vf_nr); + return ret; + } + + return 0; +} + +void adf_gen4_init_vf_mig_ops(struct qat_migdev_ops *vfmig_ops) +{ + vfmig_ops->init = adf_gen4_vfmig_init_device; + vfmig_ops->cleanup = adf_gen4_vfmig_cleanup_device; + vfmig_ops->reset = adf_gen4_vfmig_reset_device; + vfmig_ops->open = adf_gen4_vfmig_open_device; + vfmig_ops->close = adf_gen4_vfmig_close_device; + vfmig_ops->suspend = adf_gen4_vfmig_suspend_device; + vfmig_ops->resume = adf_gen4_vfmig_resume_device; + vfmig_ops->save_state = adf_gen4_vfmig_save_state; + vfmig_ops->load_state = adf_gen4_vfmig_load_state; + vfmig_ops->load_setup = adf_gen4_vfmig_load_setup; + vfmig_ops->save_setup = adf_gen4_vfmig_save_setup; +} +EXPORT_SYMBOL_GPL(adf_gen4_init_vf_mig_ops); diff --git a/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.c b/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.c new file mode 100644 index 000000000000..41cc763a74aa --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.c @@ -0,0 +1,318 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2024 Intel Corporation */ + +#include +#include +#include "adf_mstate_mgr.h" + +#define ADF_MSTATE_MAGIC 0xADF5CAEA +#define ADF_MSTATE_VERSION 0x1 + +struct adf_mstate_sect_h { + u8 id[ADF_MSTATE_ID_LEN]; + u32 size; + u32 sub_sects; + u8 state[]; +}; + +u32 adf_mstate_state_size(struct adf_mstate_mgr *mgr) +{ + return mgr->state - mgr->buf; +} + +static inline u32 adf_mstate_avail_room(struct adf_mstate_mgr *mgr) +{ + return mgr->buf + mgr->size - mgr->state; +} + +void adf_mstate_mgr_init(struct adf_mstate_mgr *mgr, u8 *buf, u32 size) +{ + mgr->buf = buf; + mgr->state = buf; + mgr->size = size; + mgr->n_sects = 0; +}; + +struct adf_mstate_mgr *adf_mstate_mgr_new(u8 *buf, u32 size) +{ + struct adf_mstate_mgr *mgr; + + mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); + if (!mgr) + return NULL; + + adf_mstate_mgr_init(mgr, buf, size); + + return mgr; +} + +void adf_mstate_mgr_destroy(struct adf_mstate_mgr *mgr) +{ + kfree(mgr); +} + +void adf_mstate_mgr_init_from_parent(struct adf_mstate_mgr *mgr, + struct adf_mstate_mgr *p_mgr) +{ + adf_mstate_mgr_init(mgr, p_mgr->state, + p_mgr->size - adf_mstate_state_size(p_mgr)); +} + +void adf_mstate_mgr_init_from_psect(struct adf_mstate_mgr *mgr, + struct adf_mstate_sect_h *p_sect) +{ + adf_mstate_mgr_init(mgr, p_sect->state, p_sect->size); + mgr->n_sects = p_sect->sub_sects; +} + +static void adf_mstate_preamble_init(struct adf_mstate_preh *preamble) +{ + preamble->magic = ADF_MSTATE_MAGIC; + preamble->version = ADF_MSTATE_VERSION; + preamble->preh_len = sizeof(*preamble); + preamble->size = 0; + preamble->n_sects = 0; +} + +/* default preambles checker */ +static int adf_mstate_preamble_def_checker(struct adf_mstate_preh *preamble, + void *opaque) +{ + struct adf_mstate_mgr *mgr = opaque; + + if (preamble->magic != ADF_MSTATE_MAGIC || + preamble->version > ADF_MSTATE_VERSION || + preamble->preh_len > mgr->size) { + pr_debug("QAT: LM - Invalid state (magic=%#x, version=%#x, hlen=%u), state_size=%u\n", + preamble->magic, preamble->version, preamble->preh_len, + mgr->size); + return -EINVAL; + } + + return 0; +} + +struct adf_mstate_preh *adf_mstate_preamble_add(struct adf_mstate_mgr *mgr) +{ + struct adf_mstate_preh *pre = (struct adf_mstate_preh *)mgr->buf; + + if (adf_mstate_avail_room(mgr) < sizeof(*pre)) { + pr_err("QAT: LM - Not enough space for preamble\n"); + return NULL; + } + + adf_mstate_preamble_init(pre); + mgr->state += pre->preh_len; + + return pre; +} + +int adf_mstate_preamble_update(struct adf_mstate_mgr *mgr) +{ + struct adf_mstate_preh *preamble = (struct adf_mstate_preh *)mgr->buf; + + preamble->size = adf_mstate_state_size(mgr) - preamble->preh_len; + preamble->n_sects = mgr->n_sects; + + return 0; +} + +static void adf_mstate_dump_sect(struct adf_mstate_sect_h *sect, + const char *prefix) +{ + pr_debug("QAT: LM - %s QAT state section %s\n", prefix, sect->id); + print_hex_dump_debug("h-", DUMP_PREFIX_OFFSET, 16, 2, sect, + sizeof(*sect), true); + print_hex_dump_debug("s-", DUMP_PREFIX_OFFSET, 16, 2, sect->state, + sect->size, true); +} + +static inline void __adf_mstate_sect_update(struct adf_mstate_mgr *mgr, + struct adf_mstate_sect_h *sect, + u32 size, + u32 n_subsects) +{ + sect->size += size; + sect->sub_sects += n_subsects; + mgr->n_sects++; + mgr->state += sect->size; + + adf_mstate_dump_sect(sect, "Add"); +} + +void adf_mstate_sect_update(struct adf_mstate_mgr *p_mgr, + struct adf_mstate_mgr *curr_mgr, + struct adf_mstate_sect_h *sect) +{ + __adf_mstate_sect_update(p_mgr, sect, adf_mstate_state_size(curr_mgr), + curr_mgr->n_sects); +} + +static struct adf_mstate_sect_h *adf_mstate_sect_add_header(struct adf_mstate_mgr *mgr, + const char *id) +{ + struct adf_mstate_sect_h *sect = (struct adf_mstate_sect_h *)(mgr->state); + + if (adf_mstate_avail_room(mgr) < sizeof(*sect)) { + pr_debug("QAT: LM - Not enough space for header of QAT state sect %s\n", id); + return NULL; + } + + strscpy(sect->id, id, sizeof(sect->id)); + sect->size = 0; + sect->sub_sects = 0; + mgr->state += sizeof(*sect); + + return sect; +} + +struct adf_mstate_sect_h *adf_mstate_sect_add_vreg(struct adf_mstate_mgr *mgr, + const char *id, + struct adf_mstate_vreginfo *info) +{ + struct adf_mstate_sect_h *sect; + + sect = adf_mstate_sect_add_header(mgr, id); + if (!sect) + return NULL; + + if (adf_mstate_avail_room(mgr) < info->size) { + pr_debug("QAT: LM - Not enough space for QAT state sect %s, requires %u\n", + id, info->size); + return NULL; + } + + memcpy(sect->state, info->addr, info->size); + __adf_mstate_sect_update(mgr, sect, info->size, 0); + + return sect; +} + +struct adf_mstate_sect_h *adf_mstate_sect_add(struct adf_mstate_mgr *mgr, + const char *id, + adf_mstate_populate populate, + void *opaque) +{ + struct adf_mstate_mgr sub_sects_mgr; + struct adf_mstate_sect_h *sect; + int avail_room, size; + + sect = adf_mstate_sect_add_header(mgr, id); + if (!sect) + return NULL; + + if (!populate) + return sect; + + avail_room = adf_mstate_avail_room(mgr); + adf_mstate_mgr_init_from_parent(&sub_sects_mgr, mgr); + + size = (*populate)(&sub_sects_mgr, sect->state, avail_room, opaque); + if (size < 0) + return NULL; + + size += adf_mstate_state_size(&sub_sects_mgr); + if (avail_room < size) { + pr_debug("QAT: LM - Not enough space for QAT state sect %s, requires %u\n", + id, size); + return NULL; + } + __adf_mstate_sect_update(mgr, sect, size, sub_sects_mgr.n_sects); + + return sect; +} + +static int adf_mstate_sect_validate(struct adf_mstate_mgr *mgr) +{ + struct adf_mstate_sect_h *start = (struct adf_mstate_sect_h *)mgr->state; + struct adf_mstate_sect_h *sect = start; + u64 end; + int i; + + end = (uintptr_t)mgr->buf + mgr->size; + for (i = 0; i < mgr->n_sects; i++) { + uintptr_t s_start = (uintptr_t)sect->state; + uintptr_t s_end = s_start + sect->size; + + if (s_end < s_start || s_end > end) { + pr_debug("QAT: LM - Corrupted state section (index=%u, size=%u) in state_mgr (size=%u, secs=%u)\n", + i, sect->size, mgr->size, mgr->n_sects); + return -EINVAL; + } + sect = (struct adf_mstate_sect_h *)s_end; + } + + pr_debug("QAT: LM - Scanned section (last child=%s, size=%lu) in state_mgr (size=%u, secs=%u)\n", + start->id, sizeof(struct adf_mstate_sect_h) * (ulong)(sect - start), + mgr->size, mgr->n_sects); + + return 0; +} + +u32 adf_mstate_state_size_from_remote(struct adf_mstate_mgr *mgr) +{ + struct adf_mstate_preh *preh = (struct adf_mstate_preh *)mgr->buf; + + return preh->preh_len + preh->size; +} + +int adf_mstate_mgr_init_from_remote(struct adf_mstate_mgr *mgr, u8 *buf, u32 size, + adf_mstate_preamble_checker pre_checker, + void *opaque) +{ + struct adf_mstate_preh *pre; + int ret; + + adf_mstate_mgr_init(mgr, buf, size); + pre = (struct adf_mstate_preh *)(mgr->buf); + + pr_debug("QAT: LM - Dump state preambles\n"); + print_hex_dump_debug("", DUMP_PREFIX_OFFSET, 16, 2, pre, pre->preh_len, 0); + + if (pre_checker) + ret = (*pre_checker)(pre, opaque); + else + ret = adf_mstate_preamble_def_checker(pre, mgr); + if (ret) + return ret; + + mgr->state = mgr->buf + pre->preh_len; + mgr->n_sects = pre->n_sects; + + return adf_mstate_sect_validate(mgr); +} + +struct adf_mstate_sect_h *adf_mstate_sect_lookup(struct adf_mstate_mgr *mgr, + const char *id, + adf_mstate_action action, + void *opaque) +{ + struct adf_mstate_sect_h *sect = (struct adf_mstate_sect_h *)mgr->state; + struct adf_mstate_mgr sub_sects_mgr; + int i, ret; + + for (i = 0; i < mgr->n_sects; i++) { + if (!strncmp(sect->id, id, sizeof(sect->id))) + goto found; + + sect = (struct adf_mstate_sect_h *)(sect->state + sect->size); + } + + return NULL; + +found: + adf_mstate_dump_sect(sect, "Found"); + + adf_mstate_mgr_init_from_psect(&sub_sects_mgr, sect); + if (sect->sub_sects && adf_mstate_sect_validate(&sub_sects_mgr)) + return NULL; + + if (!action) + return sect; + + ret = (*action)(&sub_sects_mgr, sect->state, sect->size, opaque); + if (ret) + return NULL; + + return sect; +} diff --git a/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.h b/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.h new file mode 100644 index 000000000000..81d263a596c5 --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_mstate_mgr.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright(c) 2024 Intel Corporation */ + +#ifndef ADF_MSTATE_MGR_H +#define ADF_MSTATE_MGR_H + +#define ADF_MSTATE_ID_LEN 8 + +#define ADF_MSTATE_ETRB_IDS "ETRBAR" +#define ADF_MSTATE_MISCB_IDS "MISCBAR" +#define ADF_MSTATE_EXTB_IDS "EXTBAR" +#define ADF_MSTATE_GEN_IDS "GENER" +#define ADF_MSTATE_CONFIG_IDS "CONFIG" +#define ADF_MSTATE_SECTION_NUM 5 + +#define ADF_MSTATE_BANK_IDX_IDS "bnk" + +#define ADF_MSTATE_ETR_REGS_IDS "mregs" +#define ADF_MSTATE_VINTSRC_IDS "visrc" +#define ADF_MSTATE_VINTMSK_IDS "vimsk" +#define ADF_MSTATE_SLA_IDS "sla" +#define ADF_MSTATE_IOV_INIT_IDS "iovinit" +#define ADF_MSTATE_COMPAT_VER_IDS "compver" +#define ADF_MSTATE_GEN_CAP_IDS "gencap" +#define ADF_MSTATE_GEN_SVCMAP_IDS "svcmap" +#define ADF_MSTATE_GEN_EXTDC_IDS "extdc" +#define ADF_MSTATE_VINTSRC_PF2VM_IDS "vispv" +#define ADF_MSTATE_VINTMSK_PF2VM_IDS "vimpv" +#define ADF_MSTATE_VM2PF_IDS "vm2pf" +#define ADF_MSTATE_PF2VM_IDS "pf2vm" + +struct adf_mstate_mgr { + u8 *buf; + u8 *state; + u32 size; + u32 n_sects; +}; + +struct adf_mstate_preh { + u32 magic; + u32 version; + u16 preh_len; + u16 n_sects; + u32 size; +}; + +struct adf_mstate_vreginfo { + void *addr; + u32 size; +}; + +struct adf_mstate_sect_h; + +typedef int (*adf_mstate_preamble_checker)(struct adf_mstate_preh *preamble, void *opa); +typedef int (*adf_mstate_populate)(struct adf_mstate_mgr *sub_mgr, u8 *buf, + u32 size, void *opa); +typedef int (*adf_mstate_action)(struct adf_mstate_mgr *sub_mgr, u8 *buf, u32 size, + void *opa); + +struct adf_mstate_mgr *adf_mstate_mgr_new(u8 *buf, u32 size); +void adf_mstate_mgr_destroy(struct adf_mstate_mgr *mgr); +void adf_mstate_mgr_init(struct adf_mstate_mgr *mgr, u8 *buf, u32 size); +void adf_mstate_mgr_init_from_parent(struct adf_mstate_mgr *mgr, + struct adf_mstate_mgr *p_mgr); +void adf_mstate_mgr_init_from_psect(struct adf_mstate_mgr *mgr, + struct adf_mstate_sect_h *p_sect); +int adf_mstate_mgr_init_from_remote(struct adf_mstate_mgr *mgr, + u8 *buf, u32 size, + adf_mstate_preamble_checker checker, + void *opaque); +struct adf_mstate_preh *adf_mstate_preamble_add(struct adf_mstate_mgr *mgr); +int adf_mstate_preamble_update(struct adf_mstate_mgr *mgr); +u32 adf_mstate_state_size(struct adf_mstate_mgr *mgr); +u32 adf_mstate_state_size_from_remote(struct adf_mstate_mgr *mgr); +void adf_mstate_sect_update(struct adf_mstate_mgr *p_mgr, + struct adf_mstate_mgr *curr_mgr, + struct adf_mstate_sect_h *sect); +struct adf_mstate_sect_h *adf_mstate_sect_add_vreg(struct adf_mstate_mgr *mgr, + const char *id, + struct adf_mstate_vreginfo *info); +struct adf_mstate_sect_h *adf_mstate_sect_add(struct adf_mstate_mgr *mgr, + const char *id, + adf_mstate_populate populate, + void *opaque); +struct adf_mstate_sect_h *adf_mstate_sect_lookup(struct adf_mstate_mgr *mgr, + const char *id, + adf_mstate_action action, + void *opaque); +#endif diff --git a/drivers/crypto/intel/qat/qat_common/adf_sriov.c b/drivers/crypto/intel/qat/qat_common/adf_sriov.c index 87a70c00c41e..8d645e7e04aa 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_sriov.c +++ b/drivers/crypto/intel/qat/qat_common/adf_sriov.c @@ -26,10 +26,12 @@ static void adf_iov_send_resp(struct work_struct *work) u32 vf_nr = vf_info->vf_nr; bool ret; + mutex_lock(&vf_info->pfvf_mig_lock); ret = adf_recv_and_handle_vf2pf_msg(accel_dev, vf_nr); if (ret) /* re-enable interrupt on PF from this VF */ adf_enable_vf2pf_interrupts(accel_dev, 1 << vf_nr); + mutex_unlock(&vf_info->pfvf_mig_lock); kfree(pf2vf_resp); } @@ -62,6 +64,7 @@ static int adf_enable_sriov(struct adf_accel_dev *accel_dev) vf_info->vf_nr = i; mutex_init(&vf_info->pf2vf_lock); + mutex_init(&vf_info->pfvf_mig_lock); ratelimit_state_init(&vf_info->vf2pf_ratelimit, ADF_VF2PF_RATELIMIT_INTERVAL, ADF_VF2PF_RATELIMIT_BURST); @@ -138,8 +141,10 @@ void adf_disable_sriov(struct adf_accel_dev *accel_dev) if (hw_data->configure_iov_threads) hw_data->configure_iov_threads(accel_dev, false); - for (i = 0, vf = accel_dev->pf.vf_info; i < totalvfs; i++, vf++) + for (i = 0, vf = accel_dev->pf.vf_info; i < totalvfs; i++, vf++) { mutex_destroy(&vf->pf2vf_lock); + mutex_destroy(&vf->pfvf_mig_lock); + } if (!test_bit(ADF_STATUS_RESTARTING, &accel_dev->status)) { kfree(accel_dev->pf.vf_info); -- 2.18.2