diff options
Diffstat (limited to 'drivers')
77 files changed, 790 insertions, 525 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index baebbdfd74d5..9adfb5445f8d 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -386,6 +386,15 @@ static int sock_xmit(struct nbd_device *nbd, int index, int send, return result; } +/* + * Different settings for sk->sk_sndtimeo can result in different return values + * if there is a signal pending when we enter sendmsg, because reasons? + */ +static inline int was_interrupted(int result) +{ + return result == -ERESTARTSYS || result == -EINTR; +} + /* always call with the tx_lock held */ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index) { @@ -458,7 +467,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index) result = sock_xmit(nbd, index, 1, &from, (type == NBD_CMD_WRITE) ? MSG_MORE : 0, &sent); if (result <= 0) { - if (result == -ERESTARTSYS) { + if (was_interrupted(result)) { /* If we havne't sent anything we can just return BUSY, * however if we have sent something we need to make * sure we only allow this req to be sent until we are @@ -502,7 +511,7 @@ send_pages: } result = sock_xmit(nbd, index, 1, &from, flags, &sent); if (result <= 0) { - if (result == -ERESTARTSYS) { + if (was_interrupted(result)) { /* We've already sent the header, we * have no choice but to set pending and * return BUSY. diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 34e17ee799be..68846897d213 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -593,10 +593,22 @@ static int virtblk_map_queues(struct blk_mq_tag_set *set) return blk_mq_virtio_map_queues(set, vblk->vdev, 0); } +#ifdef CONFIG_VIRTIO_BLK_SCSI +static void virtblk_initialize_rq(struct request *req) +{ + struct virtblk_req *vbr = blk_mq_rq_to_pdu(req); + + scsi_req_init(&vbr->sreq); +} +#endif + static const struct blk_mq_ops virtio_mq_ops = { .queue_rq = virtio_queue_rq, .complete = virtblk_request_done, .init_request = virtblk_init_request, +#ifdef CONFIG_VIRTIO_BLK_SCSI + .initialize_rq_fn = virtblk_initialize_rq, +#endif .map_queues = virtblk_map_queues, }; diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c index 1cb2d1c070c3..a94601d5939e 100644 --- a/drivers/firmware/efi/libstub/arm-stub.c +++ b/drivers/firmware/efi/libstub/arm-stub.c @@ -238,7 +238,8 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table, efi_random_get_seed(sys_table); - if (!nokaslr()) { + /* hibernation expects the runtime regions to stay in the same place */ + if (!IS_ENABLED(CONFIG_HIBERNATION) && !nokaslr()) { /* * Randomize the base of the UEFI runtime services region. * Preserve the 2 MB alignment of the region by taking a diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c index 08129b7b80ab..41c48a1e8baa 100644 --- a/drivers/firmware/efi/test/efi_test.c +++ b/drivers/firmware/efi/test/efi_test.c @@ -593,6 +593,9 @@ static long efi_runtime_query_capsulecaps(unsigned long arg) if (copy_from_user(&qcaps, qcaps_user, sizeof(qcaps))) return -EFAULT; + if (qcaps.capsule_count == ULONG_MAX) + return -EINVAL; + capsules = kcalloc(qcaps.capsule_count + 1, sizeof(efi_capsule_header_t), GFP_KERNEL); if (!capsules) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index 31db356476f8..430a6b4dfac9 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -225,11 +225,7 @@ static int uvd_v6_0_suspend(void *handle) if (r) return r; - /* Skip this for APU for now */ - if (!(adev->flags & AMD_IS_APU)) - r = amdgpu_uvd_suspend(adev); - - return r; + return amdgpu_uvd_suspend(adev); } static int uvd_v6_0_resume(void *handle) @@ -237,12 +233,10 @@ static int uvd_v6_0_resume(void *handle) int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; - /* Skip this for APU for now */ - if (!(adev->flags & AMD_IS_APU)) { - r = amdgpu_uvd_resume(adev); - if (r) - return r; - } + r = amdgpu_uvd_resume(adev); + if (r) + return r; + return uvd_v6_0_hw_init(adev); } diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c index c2743233ba10..b526f49be65d 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -830,7 +830,7 @@ uint32_t smu7_get_xclk(struct pp_hwmgr *hwmgr) { uint32_t reference_clock, tmp; struct cgs_display_info info = {0}; - struct cgs_mode_info mode_info; + struct cgs_mode_info mode_info = {0}; info.mode_info = &mode_info; @@ -3948,10 +3948,9 @@ static int smu7_program_display_gap(struct pp_hwmgr *hwmgr) uint32_t ref_clock; uint32_t refresh_rate = 0; struct cgs_display_info info = {0}; - struct cgs_mode_info mode_info; + struct cgs_mode_info mode_info = {0}; info.mode_info = &mode_info; - cgs_get_active_displays_info(hwmgr->device, &info); num_active_displays = info.display_count; @@ -3967,6 +3966,7 @@ static int smu7_program_display_gap(struct pp_hwmgr *hwmgr) frame_time_in_us = 1000000 / refresh_rate; pre_vbi_time_in_us = frame_time_in_us - 200 - mode_info.vblank_time_us; + data->frame_time_x2 = frame_time_in_us * 2 / 100; display_gap2 = pre_vbi_time_in_us * (ref_clock / 100); diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 21c36e256884..d4726a3358a4 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -2723,6 +2723,9 @@ static int combine_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx) uint32_t per_ctx_start[CACHELINE_DWORDS] = {0}; unsigned char *bb_start_sva; + if (!wa_ctx->per_ctx.valid) + return 0; + per_ctx_start[0] = 0x18800001; per_ctx_start[1] = wa_ctx->per_ctx.guest_gma; diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c index 91b4300f3b39..e5320b4eb698 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.c +++ b/drivers/gpu/drm/i915/gvt/execlist.c @@ -701,8 +701,7 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id, CACHELINE_BYTES; workload->wa_ctx.per_ctx.guest_gma = per_ctx & PER_CTX_ADDR_MASK; - - WARN_ON(workload->wa_ctx.indirect_ctx.size && !(per_ctx & 0x1)); + workload->wa_ctx.per_ctx.valid = per_ctx & 1; } if (emulate_schedule_in) diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 2294466dd415..a5bed2e71b92 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1429,18 +1429,7 @@ static int skl_lcpll_write(struct intel_vgpu *vgpu, unsigned int offset, return 0; } -static int ring_timestamp_mmio_read(struct intel_vgpu *vgpu, - unsigned int offset, void *p_data, unsigned int bytes) -{ - struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; - - mmio_hw_access_pre(dev_priv); - vgpu_vreg(vgpu, offset) = I915_READ(_MMIO(offset)); - mmio_hw_access_post(dev_priv); - return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes); -} - -static int instdone_mmio_read(struct intel_vgpu *vgpu, +static int mmio_read_from_hw(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; @@ -1589,6 +1578,8 @@ static int ring_reset_ctl_write(struct intel_vgpu *vgpu, MMIO_F(prefix(BLT_RING_BASE), s, f, am, rm, d, r, w); \ MMIO_F(prefix(GEN6_BSD_RING_BASE), s, f, am, rm, d, r, w); \ MMIO_F(prefix(VEBOX_RING_BASE), s, f, am, rm, d, r, w); \ + if (HAS_BSD2(dev_priv)) \ + MMIO_F(prefix(GEN8_BSD2_RING_BASE), s, f, am, rm, d, r, w); \ } while (0) #define MMIO_RING_D(prefix, d) \ @@ -1635,10 +1626,9 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) #undef RING_REG #define RING_REG(base) (base + 0x6c) - MMIO_RING_DFH(RING_REG, D_ALL, 0, instdone_mmio_read, NULL); - MMIO_DH(RING_REG(GEN8_BSD2_RING_BASE), D_ALL, instdone_mmio_read, NULL); + MMIO_RING_DFH(RING_REG, D_ALL, 0, mmio_read_from_hw, NULL); #undef RING_REG - MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, instdone_mmio_read, NULL); + MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, mmio_read_from_hw, NULL); MMIO_GM_RDR(0x2148, D_ALL, NULL, NULL); MMIO_GM_RDR(CCID, D_ALL, NULL, NULL); @@ -1648,7 +1638,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_RING_DFH(RING_TAIL, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_RING_DFH(RING_HEAD, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_RING_DFH(RING_CTL, D_ALL, F_CMD_ACCESS, NULL, NULL); - MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, mmio_read_from_hw, NULL); MMIO_RING_GM_RDR(RING_START, D_ALL, NULL, NULL); /* RING MODE */ @@ -1662,9 +1652,9 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS, - ring_timestamp_mmio_read, NULL); + mmio_read_from_hw, NULL); MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS, - ring_timestamp_mmio_read, NULL); + mmio_read_from_hw, NULL); MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS, @@ -2411,9 +2401,6 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) struct drm_i915_private *dev_priv = gvt->dev_priv; int ret; - MMIO_DFH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, NULL, - intel_vgpu_reg_imr_handler); - MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); MMIO_DH(GEN8_GT_IER(0), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); MMIO_DH(GEN8_GT_IIR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); @@ -2476,68 +2463,34 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL, intel_vgpu_reg_master_irq_handler); - MMIO_DFH(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x1c134, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - - MMIO_DFH(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, - NULL, NULL); - MMIO_DFH(RING_HEAD(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_CMD_ACCESS, NULL, NULL); - MMIO_GM_RDR(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL); - MMIO_DFH(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, - NULL, NULL); - MMIO_DFH(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, - ring_mode_mmio_write); - MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, - F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(RING_TIMESTAMP(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, - ring_timestamp_mmio_read, NULL); - - MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS, + mmio_read_from_hw, NULL); #define RING_REG(base) (base + 0xd0) MMIO_RING_F(RING_REG, 4, F_RO, 0, ~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL, ring_reset_ctl_write); - MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO, 0, - ~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL, - ring_reset_ctl_write); #undef RING_REG #define RING_REG(base) (base + 0x230) MMIO_RING_DFH(RING_REG, D_BDW_PLUS, 0, NULL, elsp_mmio_write); - MMIO_DH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, elsp_mmio_write); #undef RING_REG #define RING_REG(base) (base + 0x234) MMIO_RING_F(RING_REG, 8, F_RO | F_CMD_ACCESS, 0, ~0, D_BDW_PLUS, NULL, NULL); - MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO | F_CMD_ACCESS, 0, - ~0LL, D_BDW_PLUS, NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x244) MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, - NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x370) MMIO_RING_F(RING_REG, 48, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL); - MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 48, F_RO, 0, ~0, D_BDW_PLUS, - NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x3a0) MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_MODE_MASK, NULL, NULL); - MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK, NULL, NULL); #undef RING_REG MMIO_D(PIPEMISC(PIPE_A), D_BDW_PLUS); @@ -2557,11 +2510,9 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) #define RING_REG(base) (base + 0x270) MMIO_RING_F(RING_REG, 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL); - MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL); #undef RING_REG MMIO_RING_GM_RDR(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL); - MMIO_GM_RDR(RING_HWS_PGA(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL); MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); @@ -2849,7 +2800,6 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(0x65f08, D_SKL | D_KBL); MMIO_D(0x320f0, D_SKL | D_KBL); - MMIO_DFH(_REG_VCS2_EXCC, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_D(0x70034, D_SKL_PLUS); MMIO_D(0x71034, D_SKL_PLUS); MMIO_D(0x72034, D_SKL_PLUS); diff --git a/drivers/gpu/drm/i915/gvt/reg.h b/drivers/gpu/drm/i915/gvt/reg.h index fbd023a16f18..7d01c77a0f7a 100644 --- a/drivers/gpu/drm/i915/gvt/reg.h +++ b/drivers/gpu/drm/i915/gvt/reg.h @@ -54,9 +54,6 @@ #define VGT_SPRSTRIDE(pipe) _PIPE(pipe, _SPRA_STRIDE, _PLANE_STRIDE_2_B) -#define _REG_VECS_EXCC 0x1A028 -#define _REG_VCS2_EXCC 0x1c028 - #define _REG_701C0(pipe, plane) (0x701c0 + pipe * 0x1000 + (plane - 1) * 0x100) #define _REG_701C4(pipe, plane) (0x701c4 + pipe * 0x1000 + (plane - 1) * 0x100) diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h index 0d431a968a32..93a49eb0209e 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.h +++ b/drivers/gpu/drm/i915/gvt/scheduler.h @@ -68,6 +68,7 @@ struct shadow_indirect_ctx { struct shadow_per_ctx { unsigned long guest_gma; unsigned long shadow_gma; + unsigned valid; }; struct intel_shadow_wa_ctx { diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 94185d610673..370b9d248fed 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -2537,6 +2537,10 @@ static const struct file_operations fops = { .poll = i915_perf_poll, .read = i915_perf_read, .unlocked_ioctl = i915_perf_ioctl, + /* Our ioctl have no arguments, so it's safe to use the same function + * to handle 32bits compatibility. + */ + .compat_ioctl = i915_perf_ioctl, }; diff --git a/drivers/hwmon/da9052-hwmon.c b/drivers/hwmon/da9052-hwmon.c index 97a62f5b9ea4..a973eb6a2890 100644 --- a/drivers/hwmon/da9052-hwmon.c +++ b/drivers/hwmon/da9052-hwmon.c @@ -477,6 +477,11 @@ static int da9052_hwmon_probe(struct platform_device *pdev) /* disable touchscreen features */ da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_A_REG, 0x00); + /* Sample every 1ms */ + da9052_reg_update(hwmon->da9052, DA9052_ADC_CONT_REG, + DA9052_ADCCONT_ADCMODE, + DA9052_ADCCONT_ADCMODE); + err = da9052_request_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, "tsiready-irq", da9052_tsi_datardy_irq, hwmon); diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c index 5eafbaada795..dfc40c740d07 100644 --- a/drivers/hwmon/tmp102.c +++ b/drivers/hwmon/tmp102.c @@ -268,14 +268,11 @@ static int tmp102_probe(struct i2c_client *client, return err; } - tmp102->ready_time = jiffies; - if (tmp102->config_orig & TMP102_CONF_SD) { - /* - * Mark that we are not ready with data until the first - * conversion is complete - */ - tmp102->ready_time += msecs_to_jiffies(CONVERSION_TIME_MS); - } + /* + * Mark that we are not ready with data until the first + * conversion is complete + */ + tmp102->ready_time = jiffies + msecs_to_jiffies(CONVERSION_TIME_MS); hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, tmp102, diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 81e18f9628d0..a7355ab3bb22 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1328,6 +1328,7 @@ static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); struct scsi_request *req = scsi_req(rq); + scsi_req_init(req); memset(req->cmd, 0, BLK_MAX_CDB); if (rq_data_dir(rq) == READ) diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c index b12e58787c3d..1fb72c356e36 100644 --- a/drivers/infiniband/core/netlink.c +++ b/drivers/infiniband/core/netlink.c @@ -175,13 +175,24 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, !netlink_capable(skb, CAP_NET_ADMIN)) return -EPERM; + /* + * LS responses overload the 0x100 (NLM_F_ROOT) flag. Don't + * mistakenly call the .dump() function. + */ + if (index == RDMA_NL_LS) { + if (cb_table[op].doit) + return cb_table[op].doit(skb, nlh, extack); + return -EINVAL; + } /* FIXME: Convert IWCM to properly handle doit callbacks */ if ((nlh->nlmsg_flags & NLM_F_DUMP) || index == RDMA_NL_RDMA_CM || index == RDMA_NL_IWCM) { struct netlink_dump_control c = { .dump = cb_table[op].dump, }; - return netlink_dump_start(nls, skb, nlh, &c); + if (c.dump) + return netlink_dump_start(nls, skb, nlh, &c); + return -EINVAL; } if (cb_table[op].doit) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 3ba24c428c3b..2fae850a3eff 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -214,7 +214,9 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, nldev_policy, extack); - if (err || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) + if (err || + !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || + !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) return -EINVAL; index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 0e761d079dc4..6d6b092e2da9 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -1258,6 +1258,7 @@ static const struct acpi_device_id elan_acpi_id[] = { { "ELAN0605", 0 }, { "ELAN0609", 0 }, { "ELAN060B", 0 }, + { "ELAN0611", 0 }, { "ELAN1000", 0 }, { } }; diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c index 34dfee555b20..82e0f0d43d55 100644 --- a/drivers/input/rmi4/rmi_f30.c +++ b/drivers/input/rmi4/rmi_f30.c @@ -232,9 +232,10 @@ static int rmi_f30_map_gpios(struct rmi_function *fn, unsigned int trackstick_button = BTN_LEFT; bool button_mapped = false; int i; + int button_count = min_t(u8, f30->gpioled_count, TRACKSTICK_RANGE_END); f30->gpioled_key_map = devm_kcalloc(&fn->dev, - f30->gpioled_count, + button_count, sizeof(f30->gpioled_key_map[0]), GFP_KERNEL); if (!f30->gpioled_key_map) { @@ -242,7 +243,7 @@ static int rmi_f30_map_gpios(struct rmi_function *fn, return -ENOMEM; } - for (i = 0; i < f30->gpioled_count; i++) { + for (i = 0; i < button_count; i++) { if (!rmi_f30_is_valid_button(i, f30->ctrl)) continue; diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c index b796e891e2ee..4b8b9d7aa75e 100644 --- a/drivers/input/tablet/gtco.c +++ b/drivers/input/tablet/gtco.c @@ -230,13 +230,17 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report, /* Walk this report and pull out the info we need */ while (i < length) { - prefix = report[i]; - - /* Skip over prefix */ - i++; + prefix = report[i++]; /* Determine data size and save the data in the proper variable */ - size = PREF_SIZE(prefix); + size = (1U << PREF_SIZE(prefix)) >> 1; + if (i + size > length) { + dev_err(ddev, + "Not enough data (need %d, have %d)\n", + i + size, length); + break; + } + switch (size) { case 1: data = report[i]; @@ -244,8 +248,7 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report, case 2: data16 = get_unaligned_le16(&report[i]); break; - case 3: - size = 4; + case 4: data32 = get_unaligned_le32(&report[i]); break; } diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index f905f2361d12..8bae88a150fd 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -146,11 +146,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, WARN_ON(host->sg_len > 1); /* This DMAC cannot handle if buffer is not 8-bytes alignment */ - if (!IS_ALIGNED(sg->offset, 8)) { - host->force_pio = true; - renesas_sdhi_internal_dmac_enable_dma(host, false); - return; - } + if (!IS_ALIGNED(sg->offset, 8)) + goto force_pio; if (data->flags & MMC_DATA_READ) { dtran_mode |= DTRAN_MODE_CH_NUM_CH1; @@ -163,8 +160,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, } ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, dir); - if (ret < 0) - return; + if (ret == 0) + goto force_pio; renesas_sdhi_internal_dmac_enable_dma(host, true); @@ -176,6 +173,12 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, dtran_mode); renesas_sdhi_internal_dmac_dm_write(host, DM_DTRAN_ADDR, sg->dma_address); + + return; + +force_pio: + host->force_pio = true; + renesas_sdhi_internal_dmac_enable_dma(host, false); } static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg) diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index a7293e186e03..9c4e6199b854 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -47,6 +47,7 @@ #include <linux/mmc/sdio.h> #include <linux/scatterlist.h> #include <linux/spinlock.h> +#include <linux/swiotlb.h> #include <linux/workqueue.h> #include "tmio_mmc.h" @@ -1215,6 +1216,18 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, mmc->max_blk_count = pdata->max_blk_count ? : (PAGE_SIZE / mmc->max_blk_size) * mmc->max_segs; mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; + /* + * Since swiotlb has memory size limitation, this will calculate + * the maximum size locally (because we don't have any APIs for it now) + * and check the current max_req_size. And then, this will update + * the max_req_size if needed as a workaround. + */ + if (swiotlb_max_segment()) { + unsigned int max_size = (1 << IO_TLB_SHIFT) * IO_TLB_SEGSIZE; + + if (mmc->max_req_size > max_size) + mmc->max_req_size = max_size; + } mmc->max_seg_size = mmc->max_req_size; _host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD || diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index 68ef0a4cd821..b0c80859f746 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -342,7 +342,7 @@ static int sun4i_can_start(struct net_device *dev) /* enter the selected mode */ mod_reg_val = readl(priv->base + SUN4I_REG_MSEL_ADDR); - if (priv->can.ctrlmode & CAN_CTRLMODE_PRESUME_ACK) + if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) mod_reg_val |= SUN4I_MSEL_LOOPBACK_MODE; else if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) mod_reg_val |= SUN4I_MSEL_LISTEN_ONLY_MODE; @@ -811,7 +811,6 @@ static int sun4ican_probe(struct platform_device *pdev) priv->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING | CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_LOOPBACK | - CAN_CTRLMODE_PRESUME_ACK | CAN_CTRLMODE_3_SAMPLES; priv->base = addr; priv->clk = clk; diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 18cc529fb807..9b18d96ef526 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -137,6 +137,7 @@ static inline bool kvaser_is_usbcan(const struct usb_device_id *id) #define CMD_RESET_ERROR_COUNTER 49 #define CMD_TX_ACKNOWLEDGE 50 #define CMD_CAN_ERROR_EVENT 51 +#define CMD_FLUSH_QUEUE_REPLY 68 #define CMD_LEAF_USB_THROTTLE 77 #define CMD_LEAF_LOG_MESSAGE 106 @@ -1301,6 +1302,11 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev, goto warn; break; + case CMD_FLUSH_QUEUE_REPLY: + if (dev->family != KVASER_LEAF) + goto warn; + break; + default: warn: dev_warn(dev->udev->dev.parent, "Unhandled message (%d)\n", msg->id); @@ -1609,7 +1615,8 @@ static int kvaser_usb_close(struct net_device *netdev) if (err) netdev_warn(netdev, "Cannot flush queue, error %d\n", err); - if (kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel)) + err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel); + if (err) netdev_warn(netdev, "Cannot reset card, error %d\n", err); err = kvaser_usb_stop_chip(priv); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 36520634c96a..e77192683dba 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -2369,8 +2369,8 @@ static int hns_nic_dev_probe(struct platform_device *pdev) priv->enet_ver = AE_VERSION_2; ae_node = of_parse_phandle(dev->of_node, "ae-handle", 0); - if (IS_ERR_OR_NULL(ae_node)) { - ret = PTR_ERR(ae_node); + if (!ae_node) { + ret = -ENODEV; dev_err(dev, "not find ae-handle\n"); goto out_read_prop_fail; } diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c index ec8aa4562cc9..3b3983a1ffbb 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c @@ -1824,11 +1824,12 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, { struct e1000_adapter *adapter = netdev_priv(netdev); int i; - char *p = NULL; const struct e1000_stats *stat = e1000_gstrings_stats; e1000_update_stats(adapter); - for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) { + char *p; + switch (stat->type) { case NETDEV_STATS: p = (char *)netdev + stat->stat_offset; @@ -1839,15 +1840,13 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, default: WARN_ONCE(1, "Invalid E1000 stat type: %u index %d\n", stat->type, i); - break; + continue; } if (stat->sizeof_stat == sizeof(u64)) data[i] = *(u64 *)p; else data[i] = *(u32 *)p; - - stat++; } /* BUG_ON(i != E1000_STATS_LEN); */ } diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 98375e1e1185..1982f7917a8d 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -520,8 +520,6 @@ void e1000_down(struct e1000_adapter *adapter) struct net_device *netdev = adapter->netdev; u32 rctl, tctl; - netif_carrier_off(netdev); - /* disable receives in the hardware */ rctl = er32(RCTL); ew32(RCTL, rctl & ~E1000_RCTL_EN); @@ -537,6 +535,15 @@ void e1000_down(struct e1000_adapter *adapter) E1000_WRITE_FLUSH(); msleep(10); + /* Set the carrier off after transmits have been disabled in the + * hardware, to avoid race conditions with e1000_watchdog() (which + * may be running concurrently to us, checking for the carrier + * bit to decide whether it should enable transmits again). Such + * a race condition would result into transmission being disabled + * in the hardware until the next IFF_DOWN+IFF_UP cycle. + */ + netif_carrier_off(netdev); + napi_disable(&adapter->napi); e1000_irq_disable(adapter); diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 2756131495f0..120c68f78951 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2102,6 +2102,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget) if (unlikely(i40e_rx_is_programming_status(qword))) { i40e_clean_programming_status(rx_ring, rx_desc, qword); + cleaned_count++; continue; } size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >> @@ -2269,7 +2270,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi, goto enable_int; } - if (ITR_IS_DYNAMIC(tx_itr_setting)) { + if (ITR_IS_DYNAMIC(rx_itr_setting)) { rx = i40e_set_new_dynamic_itr(&q_vector->rx); rxval = i40e_buildreg_itr(I40E_RX_ITR, q_vector->rx.itr); } diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index fd4a46b03cc8..ea69af267d63 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -5326,7 +5326,7 @@ dma_error: DMA_TO_DEVICE); dma_unmap_len_set(tx_buffer, len, 0); - if (i--) + if (i-- == 0) i += tx_ring->count; tx_buffer = &tx_ring->tx_buffer_info[i]; } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 4d76afd13868..6d5f31e94358 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -8020,29 +8020,23 @@ static int ixgbe_tx_map(struct ixgbe_ring *tx_ring, return 0; dma_error: dev_err(tx_ring->dev, "TX DMA map failed\n"); - tx_buffer = &tx_ring->tx_buffer_info[i]; /* clear dma mappings for failed tx_buffer_info map */ - while (tx_buffer != first) { + for (;;) { + tx_buffer = &tx_ring->tx_buffer_info[i]; if (dma_unmap_len(tx_buffer, len)) dma_unmap_page(tx_ring->dev, dma_unmap_addr(tx_buffer, dma), dma_unmap_len(tx_buffer, len), DMA_TO_DEVICE); dma_unmap_len_set(tx_buffer, len, 0); - - if (i--) + if (tx_buffer == first) + break; + if (i == 0) i += tx_ring->count; - tx_buffer = &tx_ring->tx_buffer_info[i]; + i--; } - if (dma_unmap_len(tx_buffer, len)) - dma_unmap_single(tx_ring->dev, - dma_unmap_addr(tx_buffer, dma), - dma_unmap_len(tx_buffer, len), - DMA_TO_DEVICE); - dma_unmap_len_set(tx_buffer, len, 0); - dev_kfree_skb_any(first->skb); first->skb = NULL; diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index 9c86cb7cb988..a37af5813f33 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -1167,6 +1167,11 @@ struct mvpp2_bm_pool { u32 port_map; }; +#define IS_TSO_HEADER(txq_pcpu, addr) \ + ((addr) >= (txq_pcpu)->tso_headers_dma && \ + (addr) < (txq_pcpu)->tso_headers_dma + \ + (txq_pcpu)->size * TSO_HEADER_SIZE) + /* Queue modes */ #define MVPP2_QDIST_SINGLE_MODE 0 #define MVPP2_QDIST_MULTI_MODE 1 @@ -1534,7 +1539,7 @@ static bool mvpp2_prs_tcam_data_cmp(struct mvpp2_prs_entry *pe, int offs, int off = MVPP2_PRS_TCAM_DATA_BYTE(offs); u16 tcam_data; - tcam_data = (8 << pe->tcam.byte[off + 1]) | pe->tcam.byte[off]; + tcam_data = (pe->tcam.byte[off + 1] << 8) | pe->tcam.byte[off]; if (tcam_data != data) return false; return true; @@ -2609,8 +2614,8 @@ static void mvpp2_prs_mac_init(struct mvpp2 *priv) /* place holders only - no ports */ mvpp2_prs_mac_drop_all_set(priv, 0, false); mvpp2_prs_mac_promisc_set(priv, 0, false); - mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false); - mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false); + mvpp2_prs_mac_multi_set(priv, 0, MVPP2_PE_MAC_MC_ALL, false); + mvpp2_prs_mac_multi_set(priv, 0, MVPP2_PE_MAC_MC_IP6, false); } /* Set default entries for various types of dsa packets */ @@ -3391,7 +3396,7 @@ mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da, struct mvpp2_prs_entry *pe; int tid; - pe = kzalloc(sizeof(*pe), GFP_KERNEL); + pe = kzalloc(sizeof(*pe), GFP_ATOMIC); if (!pe) return NULL; mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC); @@ -3453,7 +3458,7 @@ static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port, if (tid < 0) return tid; - pe = kzalloc(sizeof(*pe), GFP_KERNEL); + pe = kzalloc(sizeof(*pe), GFP_ATOMIC); if (!pe) return -ENOMEM; mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC); @@ -5321,8 +5326,9 @@ static void mvpp2_txq_bufs_free(struct mvpp2_port *port, struct mvpp2_txq_pcpu_buf *tx_buf = txq_pcpu->buffs + txq_pcpu->txq_get_index; - dma_unmap_single(port->dev->dev.parent, tx_buf->dma, - tx_buf->size, DMA_TO_DEVICE); + if (!IS_TSO_HEADER(txq_pcpu, tx_buf->dma)) + dma_unmap_single(port->dev->dev.parent, tx_buf->dma, + tx_buf->size, DMA_TO_DEVICE); if (tx_buf->skb) dev_kfree_skb_any(tx_buf->skb); @@ -5609,7 +5615,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port, txq_pcpu->tso_headers = dma_alloc_coherent(port->dev->dev.parent, - MVPP2_AGGR_TXQ_SIZE * TSO_HEADER_SIZE, + txq_pcpu->size * TSO_HEADER_SIZE, &txq_pcpu->tso_headers_dma, GFP_KERNEL); if (!txq_pcpu->tso_headers) @@ -5623,7 +5629,7 @@ cleanup: kfree(txq_pcpu->buffs); dma_free_coherent(port->dev->dev.parent, - MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE, + txq_pcpu->size * TSO_HEADER_SIZE, txq_pcpu->tso_headers, txq_pcpu->tso_headers_dma); } @@ -5647,7 +5653,7 @@ static void mvpp2_txq_deinit(struct mvpp2_port *port, kfree(txq_pcpu->buffs); dma_free_coherent(port->dev->dev.parent, - MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE, + txq_pcpu->size * TSO_HEADER_SIZE, txq_pcpu->tso_headers, txq_pcpu->tso_headers_dma); } @@ -6212,12 +6218,15 @@ static inline void tx_desc_unmap_put(struct mvpp2_port *port, struct mvpp2_tx_queue *txq, struct mvpp2_tx_desc *desc) { + struct mvpp2_txq_pcpu *txq_pcpu = this_cpu_ptr(txq->pcpu); + dma_addr_t buf_dma_addr = mvpp2_txdesc_dma_addr_get(port, desc); size_t buf_sz = mvpp2_txdesc_size_get(port, desc); - dma_unmap_single(port->dev->dev.parent, buf_dma_addr, - buf_sz, DMA_TO_DEVICE); + if (!IS_TSO_HEADER(txq_pcpu, buf_dma_addr)) + dma_unmap_single(port->dev->dev.parent, buf_dma_addr, + buf_sz, DMA_TO_DEVICE); mvpp2_txq_desc_put(txq); } @@ -6490,7 +6499,7 @@ out: } /* Finalize TX processing */ - if (txq_pcpu->count >= txq->done_pkts_coal) + if (!port->has_tx_irqs && txq_pcpu->count >= txq->done_pkts_coal) mvpp2_txq_done(port, txq, txq_pcpu); /* Set the timer in case not all frags were processed */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c index ff60cf7342ca..fc281712869b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c @@ -77,35 +77,41 @@ static void add_delayed_event(struct mlx5_priv *priv, list_add_tail(&delayed_event->list, &priv->waiting_events_list); } -static void fire_delayed_event_locked(struct mlx5_device_context *dev_ctx, - struct mlx5_core_dev *dev, - struct mlx5_priv *priv) +static void delayed_event_release(struct mlx5_device_context *dev_ctx, + struct mlx5_priv *priv) { + struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); struct mlx5_delayed_event *de; struct mlx5_delayed_event *n; + struct list_head temp; - /* stop delaying events */ - priv->is_accum_events = false; + INIT_LIST_HEAD(&temp); + + spin_lock_irq(&priv->ctx_lock); - /* fire all accumulated events before new event comes */ - list_for_each_entry_safe(de, n, &priv->waiting_events_list, list) { + priv->is_accum_events = false; + list_splice_init(&priv->waiting_events_list, &temp); + if (!dev_ctx->context) + goto out; + list_for_each_entry_safe(de, n, &priv->waiting_events_list, list) dev_ctx->intf->event(dev, dev_ctx->context, de->event, de->param); + +out: + spin_unlock_irq(&priv->ctx_lock); + + list_for_each_entry_safe(de, n, &temp, list) { list_del(&de->list); kfree(de); } } -static void cleanup_delayed_evets(struct mlx5_priv *priv) +/* accumulating events that can come after mlx5_ib calls to + * ib_register_device, till adding that interface to the events list. + */ +static void delayed_event_start(struct mlx5_priv *priv) { - struct mlx5_delayed_event *de; - struct mlx5_delayed_event *n; - spin_lock_irq(&priv->ctx_lock); - priv->is_accum_events = false; - list_for_each_entry_safe(de, n, &priv->waiting_events_list, list) { - list_del(&de->list); - kfree(de); - } + priv->is_accum_events = true; spin_unlock_irq(&priv->ctx_lock); } @@ -122,11 +128,8 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) return; dev_ctx->intf = intf; - /* accumulating events that can come after mlx5_ib calls to - * ib_register_device, till adding that interface to the events list. - */ - priv->is_accum_events = true; + delayed_event_start(priv); dev_ctx->context = intf->add(dev); set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state); @@ -137,8 +140,6 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) spin_lock_irq(&priv->ctx_lock); list_add_tail(&dev_ctx->list, &priv->ctx_list); - fire_delayed_event_locked(dev_ctx, dev, priv); - #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING if (dev_ctx->intf->pfault) { if (priv->pfault) { @@ -150,11 +151,12 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) } #endif spin_unlock_irq(&priv->ctx_lock); - } else { - kfree(dev_ctx); - /* delete all accumulated events */ - cleanup_delayed_evets(priv); } + + delayed_event_release(dev_ctx, priv); + + if (!dev_ctx->context) + kfree(dev_ctx); } static struct mlx5_device_context *mlx5_get_device(struct mlx5_interface *intf, @@ -205,17 +207,21 @@ static void mlx5_attach_interface(struct mlx5_interface *intf, struct mlx5_priv if (!dev_ctx) return; + delayed_event_start(priv); if (intf->attach) { if (test_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state)) - return; + goto out; intf->attach(dev, dev_ctx->context); set_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state); } else { if (test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state)) - return; + goto out; dev_ctx->context = intf->add(dev); set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state); } + +out: + delayed_event_release(dev_ctx, priv); } void mlx5_attach_device(struct mlx5_core_dev *dev) @@ -414,8 +420,14 @@ void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event, if (priv->is_accum_events) add_delayed_event(priv, dev, event, param); + /* After mlx5_detach_device, the dev_ctx->intf is still set and dev_ctx is + * still in priv->ctx_list. In this case, only notify the dev_ctx if its + * ADDED or ATTACHED bit are set. + */ list_for_each_entry(dev_ctx, &priv->ctx_list, list) - if (dev_ctx->intf->event) + if (dev_ctx->intf->event && + (test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state) || + test_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state))) dev_ctx->intf->event(dev, dev_ctx->context, event, param); spin_unlock_irqrestore(&priv->ctx_lock, flags); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index c1d384fca4dc..51c4cc00a186 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -41,6 +41,11 @@ #define MLX5E_CEE_STATE_UP 1 #define MLX5E_CEE_STATE_DOWN 0 +enum { + MLX5E_VENDOR_TC_GROUP_NUM = 7, + MLX5E_LOWEST_PRIO_GROUP = 0, +}; + /* If dcbx mode is non-host set the dcbx mode to host. */ static int mlx5e_dcbnl_set_dcbx_mode(struct mlx5e_priv *priv, @@ -85,6 +90,9 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev, { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; + u8 tc_group[IEEE_8021QAZ_MAX_TCS]; + bool is_tc_group_6_exist = false; + bool is_zero_bw_ets_tc = false; int err = 0; int i; @@ -96,37 +104,64 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev, err = mlx5_query_port_prio_tc(mdev, i, &ets->prio_tc[i]); if (err) return err; - } - for (i = 0; i < ets->ets_cap; i++) { + err = mlx5_query_port_tc_group(mdev, i, &tc_group[i]); + if (err) + return err; + err = mlx5_query_port_tc_bw_alloc(mdev, i, &ets->tc_tx_bw[i]); if (err) return err; + + if (ets->tc_tx_bw[i] < MLX5E_MAX_BW_ALLOC && + tc_group[i] == (MLX5E_LOWEST_PRIO_GROUP + 1)) + is_zero_bw_ets_tc = true; + + if (tc_group[i] == (MLX5E_VENDOR_TC_GROUP_NUM - 1)) + is_tc_group_6_exist = true; + } + + /* Report 0% ets tc if exits*/ + if (is_zero_bw_ets_tc) { + for (i = 0; i < ets->ets_cap; i++) + if (tc_group[i] == MLX5E_LOWEST_PRIO_GROUP) + ets->tc_tx_bw[i] = 0; + } + + /* Update tc_tsa based on fw setting*/ + for (i = 0; i < ets->ets_cap; i++) { if (ets->tc_tx_bw[i] < MLX5E_MAX_BW_ALLOC) priv->dcbx.tc_tsa[i] = IEEE_8021QAZ_TSA_ETS; + else if (tc_group[i] == MLX5E_VENDOR_TC_GROUP_NUM && + !is_tc_group_6_exist) + priv->dcbx.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR; } - memcpy(ets->tc_tsa, priv->dcbx.tc_tsa, sizeof(ets->tc_tsa)); return err; } -enum { - MLX5E_VENDOR_TC_GROUP_NUM = 7, - MLX5E_ETS_TC_GROUP_NUM = 0, -}; - static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc) { bool any_tc_mapped_to_ets = false; + bool ets_zero_bw = false; int strict_group; int i; - for (i = 0; i <= max_tc; i++) - if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) + for (i = 0; i <= max_tc; i++) { + if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) { any_tc_mapped_to_ets = true; + if (!ets->tc_tx_bw[i]) + ets_zero_bw = true; + } + } - strict_group = any_tc_mapped_to_ets ? 1 : 0; + /* strict group has higher priority than ets group */ + strict_group = MLX5E_LOWEST_PRIO_GROUP; + if (any_tc_mapped_to_ets) + strict_group++; + if (ets_zero_bw) + strict_group++; for (i = 0; i <= max_tc; i++) { switch (ets->tc_tsa[i]) { @@ -137,7 +172,9 @@ static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc) tc_group[i] = strict_group++; break; case IEEE_8021QAZ_TSA_ETS: - tc_group[i] = MLX5E_ETS_TC_GROUP_NUM; + tc_group[i] = MLX5E_LOWEST_PRIO_GROUP; + if (ets->tc_tx_bw[i] && ets_zero_bw) + tc_group[i] = MLX5E_LOWEST_PRIO_GROUP + 1; break; } } @@ -146,9 +183,23 @@ static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc) static void mlx5e_build_tc_tx_bw(struct ieee_ets *ets, u8 *tc_tx_bw, u8 *tc_group, int max_tc) { + int bw_for_ets_zero_bw_tc = 0; + int last_ets_zero_bw_tc = -1; + int num_ets_zero_bw = 0; int i; for (i = 0; i <= max_tc; i++) { + if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS && + !ets->tc_tx_bw[i]) { + num_ets_zero_bw++; + last_ets_zero_bw_tc = i; + } + } + + if (num_ets_zero_bw) + bw_for_ets_zero_bw_tc = MLX5E_MAX_BW_ALLOC / num_ets_zero_bw; + + for (i = 0; i <= max_tc; i++) { switch (ets->tc_tsa[i]) { case IEEE_8021QAZ_TSA_VENDOR: tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC; @@ -157,12 +208,26 @@ static void mlx5e_build_tc_tx_bw(struct ieee_ets *ets, u8 *tc_tx_bw, tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC; break; case IEEE_8021QAZ_TSA_ETS: - tc_tx_bw[i] = ets->tc_tx_bw[i]; + tc_tx_bw[i] = ets->tc_tx_bw[i] ? + ets->tc_tx_bw[i] : + bw_for_ets_zero_bw_tc; break; } } + + /* Make sure the total bw for ets zero bw group is 100% */ + if (last_ets_zero_bw_tc != -1) + tc_tx_bw[last_ets_zero_bw_tc] += + MLX5E_MAX_BW_ALLOC % num_ets_zero_bw; } +/* If there are ETS BW 0, + * Set ETS group # to 1 for all ETS non zero BW tcs. Their sum must be 100%. + * Set group #0 to all the ETS BW 0 tcs and + * equally splits the 100% BW between them + * Report both group #0 and #1 as ETS type. + * All the tcs in group #0 will be reported with 0% BW. + */ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets) { struct mlx5_core_dev *mdev = priv->mdev; @@ -188,7 +253,6 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets) return err; memcpy(priv->dcbx.tc_tsa, ets->tc_tsa, sizeof(ets->tc_tsa)); - return err; } @@ -209,17 +273,9 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev, } /* Validate Bandwidth Sum */ - for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { - if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) { - if (!ets->tc_tx_bw[i]) { - netdev_err(netdev, - "Failed to validate ETS: BW 0 is illegal\n"); - return -EINVAL; - } - + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) + if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) bw_sum += ets->tc_tx_bw[i]; - } - } if (bw_sum != 0 && bw_sum != 100) { netdev_err(netdev, @@ -533,8 +589,7 @@ static void mlx5e_dcbnl_getpgtccfgtx(struct net_device *netdev, static void mlx5e_dcbnl_getpgbwgcfgtx(struct net_device *netdev, int pgid, u8 *bw_pct) { - struct mlx5e_priv *priv = netdev_priv(netdev); - struct mlx5_core_dev *mdev = priv->mdev; + struct ieee_ets ets; if (pgid >= CEE_DCBX_MAX_PGS) { netdev_err(netdev, @@ -542,8 +597,8 @@ static void mlx5e_dcbnl_getpgbwgcfgtx(struct net_device *netdev, return; } - if (mlx5_query_port_tc_bw_alloc(mdev, pgid, bw_pct)) - *bw_pct = 0; + mlx5e_dcbnl_ieee_getets(netdev, &ets); + *bw_pct = ets.tc_tx_bw[pgid]; } static void mlx5e_dcbnl_setpfccfg(struct net_device *netdev, @@ -739,8 +794,6 @@ static void mlx5e_ets_init(struct mlx5e_priv *priv) ets.prio_tc[i] = i; } - memcpy(priv->dcbx.tc_tsa, ets.tc_tsa, sizeof(ets.tc_tsa)); - /* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */ ets.prio_tc[0] = 1; ets.prio_tc[1] = 0; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 1aa2028ed995..9ba1f72060aa 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -78,9 +78,11 @@ struct mlx5e_tc_flow { }; struct mlx5e_tc_flow_parse_attr { + struct ip_tunnel_info tun_info; struct mlx5_flow_spec spec; int num_mod_hdr_actions; void *mod_hdr_actions; + int mirred_ifindex; }; enum { @@ -322,6 +324,12 @@ static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, static void mlx5e_detach_encap(struct mlx5e_priv *priv, struct mlx5e_tc_flow *flow); +static int mlx5e_attach_encap(struct mlx5e_priv *priv, + struct ip_tunnel_info *tun_info, + struct net_device *mirred_dev, + struct net_device **encap_dev, + struct mlx5e_tc_flow *flow); + static struct mlx5_flow_handle * mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, struct mlx5e_tc_flow_parse_attr *parse_attr, @@ -329,9 +337,27 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, { struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5_esw_flow_attr *attr = flow->esw_attr; - struct mlx5_flow_handle *rule; + struct net_device *out_dev, *encap_dev = NULL; + struct mlx5_flow_handle *rule = NULL; + struct mlx5e_rep_priv *rpriv; + struct mlx5e_priv *out_priv; int err; + if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) { + out_dev = __dev_get_by_index(dev_net(priv->netdev), + attr->parse_attr->mirred_ifindex); + err = mlx5e_attach_encap(priv, &parse_attr->tun_info, + out_dev, &encap_dev, flow); + if (err) { + rule = ERR_PTR(err); + if (err != -EAGAIN) + goto err_attach_encap; + } + out_priv = netdev_priv(encap_dev); + rpriv = out_priv->ppriv; + attr->out_rep = rpriv->rep; + } + err = mlx5_eswitch_add_vlan_action(esw, attr); if (err) { rule = ERR_PTR(err); @@ -347,10 +373,14 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, } } - rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr); - if (IS_ERR(rule)) - goto err_add_rule; - + /* we get here if (1) there's no error (rule being null) or when + * (2) there's an encap action and we're on -EAGAIN (no valid neigh) + */ + if (rule != ERR_PTR(-EAGAIN)) { + rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr); + if (IS_ERR(rule)) + goto err_add_rule; + } return rule; err_add_rule: @@ -361,6 +391,7 @@ err_mod_hdr: err_add_vlan: if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) mlx5e_detach_encap(priv, flow); +err_attach_encap: return rule; } @@ -389,6 +420,8 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { + struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; + struct mlx5_esw_flow_attr *esw_attr; struct mlx5e_tc_flow *flow; int err; @@ -404,10 +437,9 @@ void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, mlx5e_rep_queue_neigh_stats_work(priv); list_for_each_entry(flow, &e->flows, encap) { - flow->esw_attr->encap_id = e->encap_id; - flow->rule = mlx5e_tc_add_fdb_flow(priv, - flow->esw_attr->parse_attr, - flow); + esw_attr = flow->esw_attr; + esw_attr->encap_id = e->encap_id; + flow->rule = mlx5_eswitch_add_offloaded_rule(esw, &esw_attr->parse_attr->spec, esw_attr); if (IS_ERR(flow->rule)) { err = PTR_ERR(flow->rule); mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n", @@ -421,15 +453,13 @@ void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { + struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; struct mlx5e_tc_flow *flow; - struct mlx5_fc *counter; list_for_each_entry(flow, &e->flows, encap) { if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; - counter = mlx5_flow_rule_counter(flow->rule); - mlx5_del_flow_rules(flow->rule); - mlx5_fc_destroy(priv->mdev, counter); + mlx5_eswitch_del_offloaded_rule(esw, flow->rule, flow->esw_attr); } } @@ -1942,7 +1972,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, if (is_tcf_mirred_egress_redirect(a)) { int ifindex = tcf_mirred_ifindex(a); - struct net_device *out_dev, *encap_dev = NULL; + struct net_device *out_dev; struct mlx5e_priv *out_priv; out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); @@ -1955,17 +1985,13 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, rpriv = out_priv->ppriv; attr->out_rep = rpriv->rep; } else if (encap) { - err = mlx5e_attach_encap(priv, info, - out_dev, &encap_dev, flow); - if (err && err != -EAGAIN) - return err; + parse_attr->mirred_ifindex = ifindex; + parse_attr->tun_info = *info; + attr->parse_attr = parse_attr; attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_COUNT; - out_priv = netdev_priv(encap_dev); - rpriv = out_priv->ppriv; - attr->out_rep = rpriv->rep; - attr->parse_attr = parse_attr; + /* attr->out_rep is resolved when we handle encap */ } else { pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", priv->netdev->name, out_dev->name); @@ -2047,7 +2073,7 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow); if (err < 0) - goto err_handle_encap_flow; + goto err_free; flow->rule = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow); } else { err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow); @@ -2058,10 +2084,13 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, if (IS_ERR(flow->rule)) { err = PTR_ERR(flow->rule); - goto err_free; + if (err != -EAGAIN) + goto err_free; } - flow->flags |= MLX5E_TC_FLOW_OFFLOADED; + if (err != -EAGAIN) + flow->flags |= MLX5E_TC_FLOW_OFFLOADED; + err = rhashtable_insert_fast(&tc->ht, &flow->node, tc->ht_params); if (err) @@ -2075,16 +2104,6 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, err_del_rule: mlx5e_tc_del_flow(priv, flow); -err_handle_encap_flow: - if (err == -EAGAIN) { - err = rhashtable_insert_fast(&tc->ht, &flow->node, - tc->ht_params); - if (err) - mlx5e_tc_del_flow(priv, flow); - else - return 0; - } - err_free: kvfree(parse_attr); kfree(flow); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c index 8aea0a065e56..db86e1506c8b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/health.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c @@ -356,10 +356,11 @@ void mlx5_drain_health_wq(struct mlx5_core_dev *dev) void mlx5_drain_health_recovery(struct mlx5_core_dev *dev) { struct mlx5_core_health *health = &dev->priv.health; + unsigned long flags; - spin_lock(&health->wq_lock); + spin_lock_irqsave(&health->wq_lock, flags); set_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags); - spin_unlock(&health->wq_lock); + spin_unlock_irqrestore(&health->wq_lock, flags); cancel_delayed_work_sync(&dev->priv.health.recover_work); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 1975d4388d4f..e07061f565d6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -677,6 +677,27 @@ int mlx5_set_port_tc_group(struct mlx5_core_dev *mdev, u8 *tc_group) } EXPORT_SYMBOL_GPL(mlx5_set_port_tc_group); +int mlx5_query_port_tc_group(struct mlx5_core_dev *mdev, + u8 tc, u8 *tc_group) +{ + u32 out[MLX5_ST_SZ_DW(qetc_reg)]; + void *ets_tcn_conf; + int err; + + err = mlx5_query_port_qetcr_reg(mdev, out, sizeof(out)); + if (err) + return err; + + ets_tcn_conf = MLX5_ADDR_OF(qetc_reg, out, + tc_configuration[tc]); + + *tc_group = MLX5_GET(ets_tcn_config_reg, ets_tcn_conf, + group); + + return 0; +} +EXPORT_SYMBOL_GPL(mlx5_query_port_tc_group); + int mlx5_set_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 *tc_bw) { u32 in[MLX5_ST_SZ_DW(qetc_reg)] = {0}; diff --git a/drivers/net/ethernet/mellanox/mlxsw/i2c.c b/drivers/net/ethernet/mellanox/mlxsw/i2c.c index 12c3a4449120..c0dcfa05b077 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/i2c.c +++ b/drivers/net/ethernet/mellanox/mlxsw/i2c.c @@ -294,7 +294,7 @@ mlxsw_i2c_write(struct device *dev, size_t in_mbox_size, u8 *in_mbox, int num, write_tran.len = MLXSW_I2C_ADDR_WIDTH + chunk_size; mlxsw_i2c_set_slave_addr(tran_buf, off); memcpy(&tran_buf[MLXSW_I2C_ADDR_BUF_SIZE], in_mbox + - chunk_size * i, chunk_size); + MLXSW_I2C_BLK_MAX * i, chunk_size); j = 0; end = jiffies + timeout; diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 4afc8486eb9a..5acfbe5b8b9d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -5827,6 +5827,29 @@ MLXSW_ITEM32(reg, mtmp, mtr, 0x08, 30, 1); */ MLXSW_ITEM32(reg, mtmp, max_temperature, 0x08, 0, 16); +/* reg_mtmp_tee + * Temperature Event Enable. + * 0 - Do not generate event + * 1 - Generate event + * 2 - Generate single event + * Access: RW + */ +MLXSW_ITEM32(reg, mtmp, tee, 0x0C, 30, 2); + +#define MLXSW_REG_MTMP_THRESH_HI 0x348 /* 105 Celsius */ + +/* reg_mtmp_temperature_threshold_hi + * High threshold for Temperature Warning Event. In 0.125 Celsius. + * Access: RW + */ +MLXSW_ITEM32(reg, mtmp, temperature_threshold_hi, 0x0C, 0, 16); + +/* reg_mtmp_temperature_threshold_lo + * Low threshold for Temperature Warning Event. In 0.125 Celsius. + * Access: RW + */ +MLXSW_ITEM32(reg, mtmp, temperature_threshold_lo, 0x10, 0, 16); + #define MLXSW_REG_MTMP_SENSOR_NAME_SIZE 8 /* reg_mtmp_sensor_name @@ -5843,6 +5866,8 @@ static inline void mlxsw_reg_mtmp_pack(char *payload, u8 sensor_index, mlxsw_reg_mtmp_sensor_index_set(payload, sensor_index); mlxsw_reg_mtmp_mte_set(payload, max_temp_enable); mlxsw_reg_mtmp_mtr_set(payload, max_temp_reset); + mlxsw_reg_mtmp_temperature_threshold_hi_set(payload, + MLXSW_REG_MTMP_THRESH_HI); } static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp, diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c index db9750695dc7..8ea9320014ee 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/action.c +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c @@ -110,6 +110,8 @@ nfp_fl_output(struct nfp_fl_output *output, const struct tc_action *action, */ if (!switchdev_port_same_parent_id(in_dev, out_dev)) return -EOPNOTSUPP; + if (!nfp_netdev_is_nfp_repr(out_dev)) + return -EOPNOTSUPP; output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev)); if (!output->port) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c index 5efef8001edf..3256e5cbad27 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c @@ -74,7 +74,7 @@ static int dwc_eth_dwmac_config_dt(struct platform_device *pdev, plat_dat->axi->axi_wr_osr_lmt--; } - if (of_property_read_u32(np, "read,read-requests", + if (of_property_read_u32(np, "snps,read-requests", &plat_dat->axi->axi_rd_osr_lmt)) { /** * Since the register has a reset value of 1, if property diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 8a280b48e3a9..6383695004a5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -150,6 +150,13 @@ static void stmmac_mtl_setup(struct platform_device *pdev, plat->rx_queues_to_use = 1; plat->tx_queues_to_use = 1; + /* First Queue must always be in DCB mode. As MTL_QUEUE_DCB = 1 we need + * to always set this, otherwise Queue will be classified as AVB + * (because MTL_QUEUE_AVB = 0). + */ + plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB; + plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB; + rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0); if (!rx_node) return; diff --git a/drivers/net/ipvlan/ipvtap.c b/drivers/net/ipvlan/ipvtap.c index 5dea2063dbc8..0bcc07f346c3 100644 --- a/drivers/net/ipvlan/ipvtap.c +++ b/drivers/net/ipvlan/ipvtap.c @@ -197,8 +197,8 @@ static int ipvtap_init(void) { int err; - err = tap_create_cdev(&ipvtap_cdev, &ipvtap_major, "ipvtap"); - + err = tap_create_cdev(&ipvtap_cdev, &ipvtap_major, "ipvtap", + THIS_MODULE); if (err) goto out1; diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index c2d0ea2fb019..cba5cb3b849a 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -204,8 +204,8 @@ static int macvtap_init(void) { int err; - err = tap_create_cdev(&macvtap_cdev, &macvtap_major, "macvtap"); - + err = tap_create_cdev(&macvtap_cdev, &macvtap_major, "macvtap", + THIS_MODULE); if (err) goto out1; diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 15cbcdba618a..4d02b27df044 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -681,9 +681,11 @@ static int m88e1116r_config_init(struct phy_device *phydev) if (err < 0) return err; - err = m88e1121_config_aneg_rgmii_delays(phydev); - if (err < 0) - return err; + if (phy_interface_is_rgmii(phydev)) { + err = m88e1121_config_aneg_rgmii_delays(phydev); + if (err < 0) + return err; + } err = genphy_soft_reset(phydev); if (err < 0) diff --git a/drivers/net/tap.c b/drivers/net/tap.c index 21b71ae947fd..6c0c84c33e1f 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -517,6 +517,10 @@ static int tap_open(struct inode *inode, struct file *file) &tap_proto, 0); if (!q) goto err; + if (skb_array_init(&q->skb_array, tap->dev->tx_queue_len, GFP_KERNEL)) { + sk_free(&q->sk); + goto err; + } RCU_INIT_POINTER(q->sock.wq, &q->wq); init_waitqueue_head(&q->wq.wait); @@ -540,22 +544,18 @@ static int tap_open(struct inode *inode, struct file *file) if ((tap->dev->features & NETIF_F_HIGHDMA) && (tap->dev->features & NETIF_F_SG)) sock_set_flag(&q->sk, SOCK_ZEROCOPY); - err = -ENOMEM; - if (skb_array_init(&q->skb_array, tap->dev->tx_queue_len, GFP_KERNEL)) - goto err_array; - err = tap_set_queue(tap, file, q); - if (err) - goto err_queue; + if (err) { + /* tap_sock_destruct() will take care of freeing skb_array */ + goto err_put; + } dev_put(tap->dev); rtnl_unlock(); return err; -err_queue: - skb_array_cleanup(&q->skb_array); -err_array: +err_put: sock_put(&q->sk); err: if (tap) @@ -1032,6 +1032,8 @@ static long tap_ioctl(struct file *file, unsigned int cmd, case TUNSETSNDBUF: if (get_user(s, sp)) return -EFAULT; + if (s <= 0) + return -EINVAL; q->sk.sk_sndbuf = s; return 0; @@ -1249,8 +1251,8 @@ static int tap_list_add(dev_t major, const char *device_name) return 0; } -int tap_create_cdev(struct cdev *tap_cdev, - dev_t *tap_major, const char *device_name) +int tap_create_cdev(struct cdev *tap_cdev, dev_t *tap_major, + const char *device_name, struct module *module) { int err; @@ -1259,6 +1261,7 @@ int tap_create_cdev(struct cdev *tap_cdev, goto out1; cdev_init(tap_cdev, &tap_fops); + tap_cdev->owner = module; err = cdev_add(tap_cdev, *tap_major, TAP_NUM_DEVS); if (err) goto out2; diff --git a/drivers/net/tun.c b/drivers/net/tun.c index e21bf90b819f..42bb820a56c9 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1286,6 +1286,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, buflen += SKB_DATA_ALIGN(len + pad); rcu_read_unlock(); + alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES); if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL))) return ERR_PTR(-ENOMEM); @@ -2028,7 +2029,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) if (!dev) return -ENOMEM; err = dev_get_valid_name(net, dev, name); - if (err) + if (err < 0) goto err_free_dev; dev_net_set(dev, net); @@ -2428,6 +2429,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, ret = -EFAULT; break; } + if (sndbuf <= 0) { + ret = -EINVAL; + break; + } tun->sndbuf = sndbuf; tun_set_sndbuf(tun); diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 52ea80bcd639..3e7a3ac3a362 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -561,6 +561,7 @@ static const struct driver_info wwan_info = { #define HP_VENDOR_ID 0x03f0 #define MICROSOFT_VENDOR_ID 0x045e #define UBLOX_VENDOR_ID 0x1546 +#define TPLINK_VENDOR_ID 0x2357 static const struct usb_device_id products[] = { /* BLACKLIST !! @@ -813,6 +814,13 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, + /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, + /* WHITELIST!!! * * CDC Ether uses two interfaces, not necessarily consecutive. @@ -864,6 +872,12 @@ static const struct usb_device_id products[] = { USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = (kernel_ulong_t)&wwan_info, }, { + /* Huawei ME906 and ME909 */ + USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, +}, { /* ZTE modules */ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 941ece08ba78..d51d9abf7986 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -615,6 +615,7 @@ enum rtl8152_flags { #define VENDOR_ID_LENOVO 0x17ef #define VENDOR_ID_LINKSYS 0x13b1 #define VENDOR_ID_NVIDIA 0x0955 +#define VENDOR_ID_TPLINK 0x2357 #define MCU_TYPE_PLA 0x0100 #define MCU_TYPE_USB 0x0000 @@ -5319,6 +5320,7 @@ static const struct usb_device_id rtl8152_table[] = { {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7214)}, {REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)}, {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)}, + {REALTEK_USB_DEVICE(VENDOR_ID_TPLINK, 0x0601)}, {} }; diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c index 63f749078a1f..0e3f8ed84660 100644 --- a/drivers/net/wan/lapbether.c +++ b/drivers/net/wan/lapbether.c @@ -346,7 +346,6 @@ out: fail: dev_put(dev); free_netdev(ndev); - kfree(lapbeth); goto out; } diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index a3f5dc78353f..0aeeb233af78 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -550,6 +550,11 @@ static int ath10k_htt_rx_crypto_param_len(struct ath10k *ar, return IEEE80211_TKIP_IV_LEN; case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2: return IEEE80211_CCMP_HDR_LEN; + case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2: + return IEEE80211_CCMP_256_HDR_LEN; + case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2: + case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2: + return IEEE80211_GCMP_HDR_LEN; case HTT_RX_MPDU_ENCRYPT_WEP128: case HTT_RX_MPDU_ENCRYPT_WAPI: break; @@ -575,6 +580,11 @@ static int ath10k_htt_rx_crypto_tail_len(struct ath10k *ar, return IEEE80211_TKIP_ICV_LEN; case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2: return IEEE80211_CCMP_MIC_LEN; + case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2: + return IEEE80211_CCMP_256_MIC_LEN; + case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2: + case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2: + return IEEE80211_GCMP_MIC_LEN; case HTT_RX_MPDU_ENCRYPT_WEP128: case HTT_RX_MPDU_ENCRYPT_WAPI: break; @@ -1051,9 +1061,21 @@ static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar, hdr = (void *)msdu->data; /* Tail */ - if (status->flag & RX_FLAG_IV_STRIPPED) + if (status->flag & RX_FLAG_IV_STRIPPED) { skb_trim(msdu, msdu->len - ath10k_htt_rx_crypto_tail_len(ar, enctype)); + } else { + /* MIC */ + if ((status->flag & RX_FLAG_MIC_STRIPPED) && + enctype == HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2) + skb_trim(msdu, msdu->len - 8); + + /* ICV */ + if (status->flag & RX_FLAG_ICV_STRIPPED && + enctype != HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2) + skb_trim(msdu, msdu->len - + ath10k_htt_rx_crypto_tail_len(ar, enctype)); + } /* MMIC */ if ((status->flag & RX_FLAG_MMIC_STRIPPED) && @@ -1075,7 +1097,8 @@ static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar, static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, struct sk_buff *msdu, struct ieee80211_rx_status *status, - const u8 first_hdr[64]) + const u8 first_hdr[64], + enum htt_rx_mpdu_encrypt_type enctype) { struct ieee80211_hdr *hdr; struct htt_rx_desc *rxd; @@ -1083,6 +1106,7 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, u8 da[ETH_ALEN]; u8 sa[ETH_ALEN]; int l3_pad_bytes; + int bytes_aligned = ar->hw_params.decap_align_bytes; /* Delivered decapped frame: * [nwifi 802.11 header] <-- replaced with 802.11 hdr @@ -1111,6 +1135,14 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, /* push original 802.11 header */ hdr = (struct ieee80211_hdr *)first_hdr; hdr_len = ieee80211_hdrlen(hdr->frame_control); + + if (!(status->flag & RX_FLAG_IV_STRIPPED)) { + memcpy(skb_push(msdu, + ath10k_htt_rx_crypto_param_len(ar, enctype)), + (void *)hdr + round_up(hdr_len, bytes_aligned), + ath10k_htt_rx_crypto_param_len(ar, enctype)); + } + memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); /* original 802.11 header has a different DA and in @@ -1171,6 +1203,7 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, u8 sa[ETH_ALEN]; int l3_pad_bytes; struct htt_rx_desc *rxd; + int bytes_aligned = ar->hw_params.decap_align_bytes; /* Delivered decapped frame: * [eth header] <-- replaced with 802.11 hdr & rfc1042/llc @@ -1199,6 +1232,14 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, /* push original 802.11 header */ hdr = (struct ieee80211_hdr *)first_hdr; hdr_len = ieee80211_hdrlen(hdr->frame_control); + + if (!(status->flag & RX_FLAG_IV_STRIPPED)) { + memcpy(skb_push(msdu, + ath10k_htt_rx_crypto_param_len(ar, enctype)), + (void *)hdr + round_up(hdr_len, bytes_aligned), + ath10k_htt_rx_crypto_param_len(ar, enctype)); + } + memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); /* original 802.11 header has a different DA and in @@ -1212,12 +1253,14 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar, struct sk_buff *msdu, struct ieee80211_rx_status *status, - const u8 first_hdr[64]) + const u8 first_hdr[64], + enum htt_rx_mpdu_encrypt_type enctype) { struct ieee80211_hdr *hdr; size_t hdr_len; int l3_pad_bytes; struct htt_rx_desc *rxd; + int bytes_aligned = ar->hw_params.decap_align_bytes; /* Delivered decapped frame: * [amsdu header] <-- replaced with 802.11 hdr @@ -1233,6 +1276,14 @@ static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar, hdr = (struct ieee80211_hdr *)first_hdr; hdr_len = ieee80211_hdrlen(hdr->frame_control); + + if (!(status->flag & RX_FLAG_IV_STRIPPED)) { + memcpy(skb_push(msdu, + ath10k_htt_rx_crypto_param_len(ar, enctype)), + (void *)hdr + round_up(hdr_len, bytes_aligned), + ath10k_htt_rx_crypto_param_len(ar, enctype)); + } + memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); } @@ -1267,13 +1318,15 @@ static void ath10k_htt_rx_h_undecap(struct ath10k *ar, is_decrypted); break; case RX_MSDU_DECAP_NATIVE_WIFI: - ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr); + ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr, + enctype); break; case RX_MSDU_DECAP_ETHERNET2_DIX: ath10k_htt_rx_h_undecap_eth(ar, msdu, status, first_hdr, enctype); break; case RX_MSDU_DECAP_8023_SNAP_LLC: - ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr); + ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr, + enctype); break; } } @@ -1316,7 +1369,8 @@ static void ath10k_htt_rx_h_csum_offload(struct sk_buff *msdu) static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, struct sk_buff_head *amsdu, - struct ieee80211_rx_status *status) + struct ieee80211_rx_status *status, + bool fill_crypt_header) { struct sk_buff *first; struct sk_buff *last; @@ -1326,7 +1380,6 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, enum htt_rx_mpdu_encrypt_type enctype; u8 first_hdr[64]; u8 *qos; - size_t hdr_len; bool has_fcs_err; bool has_crypto_err; bool has_tkip_err; @@ -1351,15 +1404,17 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, * decapped header. It'll be used for undecapping of each MSDU. */ hdr = (void *)rxd->rx_hdr_status; - hdr_len = ieee80211_hdrlen(hdr->frame_control); - memcpy(first_hdr, hdr, hdr_len); + memcpy(first_hdr, hdr, RX_HTT_HDR_STATUS_LEN); /* Each A-MSDU subframe will use the original header as the base and be * reported as a separate MSDU so strip the A-MSDU bit from QoS Ctl. */ hdr = (void *)first_hdr; - qos = ieee80211_get_qos_ctl(hdr); - qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + + if (ieee80211_is_data_qos(hdr->frame_control)) { + qos = ieee80211_get_qos_ctl(hdr); + qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + } /* Some attention flags are valid only in the last MSDU. */ last = skb_peek_tail(amsdu); @@ -1406,9 +1461,14 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, status->flag |= RX_FLAG_DECRYPTED; if (likely(!is_mgmt)) - status->flag |= RX_FLAG_IV_STRIPPED | - RX_FLAG_MMIC_STRIPPED; -} + status->flag |= RX_FLAG_MMIC_STRIPPED; + + if (fill_crypt_header) + status->flag |= RX_FLAG_MIC_STRIPPED | + RX_FLAG_ICV_STRIPPED; + else + status->flag |= RX_FLAG_IV_STRIPPED; + } skb_queue_walk(amsdu, msdu) { ath10k_htt_rx_h_csum_offload(msdu); @@ -1424,6 +1484,9 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, if (is_mgmt) continue; + if (fill_crypt_header) + continue; + hdr = (void *)msdu->data; hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); } @@ -1434,6 +1497,9 @@ static void ath10k_htt_rx_h_deliver(struct ath10k *ar, struct ieee80211_rx_status *status) { struct sk_buff *msdu; + struct sk_buff *first_subframe; + + first_subframe = skb_peek(amsdu); while ((msdu = __skb_dequeue(amsdu))) { /* Setup per-MSDU flags */ @@ -1442,6 +1508,13 @@ static void ath10k_htt_rx_h_deliver(struct ath10k *ar, else status->flag |= RX_FLAG_AMSDU_MORE; + if (msdu == first_subframe) { + first_subframe = NULL; + status->flag &= ~RX_FLAG_ALLOW_SAME_PN; + } else { + status->flag |= RX_FLAG_ALLOW_SAME_PN; + } + ath10k_process_rx(ar, status, msdu); } } @@ -1584,7 +1657,7 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt) ath10k_htt_rx_h_unchain(ar, &amsdu); ath10k_htt_rx_h_filter(ar, &amsdu, rx_status); - ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status); + ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status, true); ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status); return num_msdus; @@ -1745,8 +1818,7 @@ static void ath10k_htt_rx_delba(struct ath10k *ar, struct htt_resp *resp) } static int ath10k_htt_rx_extract_amsdu(struct sk_buff_head *list, - struct sk_buff_head *amsdu, - int budget_left) + struct sk_buff_head *amsdu) { struct sk_buff *msdu; struct htt_rx_desc *rxd; @@ -1757,9 +1829,8 @@ static int ath10k_htt_rx_extract_amsdu(struct sk_buff_head *list, if (WARN_ON(!skb_queue_empty(amsdu))) return -EINVAL; - while ((msdu = __skb_dequeue(list)) && budget_left) { + while ((msdu = __skb_dequeue(list))) { __skb_queue_tail(amsdu, msdu); - budget_left--; rxd = (void *)msdu->data - sizeof(*rxd); if (rxd->msdu_end.common.info0 & @@ -1850,8 +1921,7 @@ static int ath10k_htt_rx_h_rx_offload(struct ath10k *ar, return num_msdu; } -static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb, - int budget_left) +static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) { struct ath10k_htt *htt = &ar->htt; struct htt_resp *resp = (void *)skb->data; @@ -1908,9 +1978,9 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb, if (offload) num_msdus = ath10k_htt_rx_h_rx_offload(ar, &list); - while (!skb_queue_empty(&list) && budget_left) { + while (!skb_queue_empty(&list)) { __skb_queue_head_init(&amsdu); - ret = ath10k_htt_rx_extract_amsdu(&list, &amsdu, budget_left); + ret = ath10k_htt_rx_extract_amsdu(&list, &amsdu); switch (ret) { case 0: /* Note: The in-order indication may report interleaved @@ -1920,10 +1990,9 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb, * should still give an idea about rx rate to the user. */ num_msdus += skb_queue_len(&amsdu); - budget_left -= skb_queue_len(&amsdu); ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id); ath10k_htt_rx_h_filter(ar, &amsdu, status); - ath10k_htt_rx_h_mpdu(ar, &amsdu, status); + ath10k_htt_rx_h_mpdu(ar, &amsdu, status, false); ath10k_htt_rx_h_deliver(ar, &amsdu, status); break; case -EAGAIN: @@ -2563,8 +2632,7 @@ int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget) } spin_lock_bh(&htt->rx_ring.lock); - num_rx_msdus = ath10k_htt_rx_in_ord_ind(ar, skb, - (budget - quota)); + num_rx_msdus = ath10k_htt_rx_in_ord_ind(ar, skb); spin_unlock_bh(&htt->rx_ring.lock); if (num_rx_msdus < 0) { resched_napi = true; diff --git a/drivers/net/wireless/ath/ath10k/rx_desc.h b/drivers/net/wireless/ath/ath10k/rx_desc.h index c1022a1cf855..28da14398951 100644 --- a/drivers/net/wireless/ath/ath10k/rx_desc.h +++ b/drivers/net/wireless/ath/ath10k/rx_desc.h @@ -239,6 +239,9 @@ enum htt_rx_mpdu_encrypt_type { HTT_RX_MPDU_ENCRYPT_WAPI = 5, HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2 = 6, HTT_RX_MPDU_ENCRYPT_NONE = 7, + HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2 = 8, + HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2 = 9, + HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2 = 10, }; #define RX_MPDU_START_INFO0_PEER_IDX_MASK 0x000007ff diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index 35bd50bcbbd5..b83f01d6e3dd 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -812,7 +812,6 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, if (!sta) { wcn36xx_err("sta %pM is not found\n", bss_conf->bssid); - rcu_read_unlock(); goto out; } sta_priv = wcn36xx_sta_to_priv(sta); diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 5a14cc7f28ee..37f9039bb9ca 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1249,6 +1249,7 @@ static int nvme_revalidate_disk(struct gendisk *disk) goto out; } + __nvme_revalidate_disk(disk, id); nvme_report_ns_ids(ctrl, ns->ns_id, id, eui64, nguid, &uuid); if (!uuid_equal(&ns->uuid, &uuid) || memcmp(&ns->nguid, &nguid, sizeof(ns->nguid)) || diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index af075e998944..be49d0f79381 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -2545,10 +2545,10 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl) nvme_fc_abort_aen_ops(ctrl); /* wait for all io that had to be aborted */ - spin_lock_irqsave(&ctrl->lock, flags); + spin_lock_irq(&ctrl->lock); wait_event_lock_irq(ctrl->ioabort_wait, ctrl->iocnt == 0, ctrl->lock); ctrl->flags &= ~FCCTRL_TERMIO; - spin_unlock_irqrestore(&ctrl->lock, flags); + spin_unlock_irq(&ctrl->lock); nvme_fc_term_aen_ops(ctrl); @@ -2734,7 +2734,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, { struct nvme_fc_ctrl *ctrl; unsigned long flags; - int ret, idx; + int ret, idx, retry; if (!(rport->remoteport.port_role & (FC_PORT_ROLE_NVME_DISCOVERY | FC_PORT_ROLE_NVME_TARGET))) { @@ -2760,6 +2760,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, ctrl->rport = rport; ctrl->dev = lport->dev; ctrl->cnum = idx; + init_waitqueue_head(&ctrl->ioabort_wait); get_device(ctrl->dev); kref_init(&ctrl->ref); @@ -2825,9 +2826,37 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, list_add_tail(&ctrl->ctrl_list, &rport->ctrl_list); spin_unlock_irqrestore(&rport->lock, flags); - ret = nvme_fc_create_association(ctrl); + /* + * It's possible that transactions used to create the association + * may fail. Examples: CreateAssociation LS or CreateIOConnection + * LS gets dropped/corrupted/fails; or a frame gets dropped or a + * command times out for one of the actions to init the controller + * (Connect, Get/Set_Property, Set_Features, etc). Many of these + * transport errors (frame drop, LS failure) inherently must kill + * the association. The transport is coded so that any command used + * to create the association (prior to a LIVE state transition + * while NEW or RECONNECTING) will fail if it completes in error or + * times out. + * + * As such: as the connect request was mostly likely due to a + * udev event that discovered the remote port, meaning there is + * not an admin or script there to restart if the connect + * request fails, retry the initial connection creation up to + * three times before giving up and declaring failure. + */ + for (retry = 0; retry < 3; retry++) { + ret = nvme_fc_create_association(ctrl); + if (!ret) + break; + } + if (ret) { + /* couldn't schedule retry - fail out */ + dev_err(ctrl->ctrl.device, + "NVME-FC{%d}: Connect retry failed\n", ctrl->cnum); + ctrl->ctrl.opts = NULL; + /* initiate nvme ctrl ref counting teardown */ nvme_uninit_ctrl(&ctrl->ctrl); nvme_put_ctrl(&ctrl->ctrl); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 92a03ff5fb4d..0ebb539f3bd3 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -571,6 +571,12 @@ static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue) if (test_and_set_bit(NVME_RDMA_Q_DELETING, &queue->flags)) return; + if (nvme_rdma_queue_idx(queue) == 0) { + nvme_rdma_free_qe(queue->device->dev, + &queue->ctrl->async_event_sqe, + sizeof(struct nvme_command), DMA_TO_DEVICE); + } + nvme_rdma_destroy_queue_ib(queue); rdma_destroy_id(queue->cm_id); } @@ -739,8 +745,6 @@ out: static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl, bool remove) { - nvme_rdma_free_qe(ctrl->queues[0].device->dev, &ctrl->async_event_sqe, - sizeof(struct nvme_command), DMA_TO_DEVICE); nvme_rdma_stop_queue(&ctrl->queues[0]); if (remove) { blk_cleanup_queue(ctrl->ctrl.admin_q); @@ -765,8 +769,10 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl, if (new) { ctrl->ctrl.admin_tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, true); - if (IS_ERR(ctrl->ctrl.admin_tagset)) + if (IS_ERR(ctrl->ctrl.admin_tagset)) { + error = PTR_ERR(ctrl->ctrl.admin_tagset); goto out_free_queue; + } ctrl->ctrl.admin_q = blk_mq_init_queue(&ctrl->admin_tag_set); if (IS_ERR(ctrl->ctrl.admin_q)) { @@ -846,8 +852,10 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new) if (new) { ctrl->ctrl.tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, false); - if (IS_ERR(ctrl->ctrl.tagset)) + if (IS_ERR(ctrl->ctrl.tagset)) { + ret = PTR_ERR(ctrl->ctrl.tagset); goto out_free_io_queues; + } ctrl->ctrl.connect_q = blk_mq_init_queue(&ctrl->tag_set); if (IS_ERR(ctrl->ctrl.connect_q)) { @@ -1606,12 +1614,15 @@ nvme_rdma_queue_is_ready(struct nvme_rdma_queue *queue, struct request *rq) /* * reconnecting state means transport disruption, which * can take a long time and even might fail permanently, - * so we can't let incoming I/O be requeued forever. - * fail it fast to allow upper layers a chance to - * failover. + * fail fast to give upper layers a chance to failover. + * deleting state means that the ctrl will never accept + * commands again, fail it permanently. */ - if (queue->ctrl->ctrl.state == NVME_CTRL_RECONNECTING) + if (queue->ctrl->ctrl.state == NVME_CTRL_RECONNECTING || + queue->ctrl->ctrl.state == NVME_CTRL_DELETING) { + nvme_req(rq)->status = NVME_SC_ABORT_REQ; return BLK_STS_IOERR; + } return BLK_STS_RESOURCE; /* try again later */ } } diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 1b208beeef50..645ba7eee35d 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -387,12 +387,21 @@ struct nvmet_ns *nvmet_ns_alloc(struct nvmet_subsys *subsys, u32 nsid) static void __nvmet_req_complete(struct nvmet_req *req, u16 status) { + u32 old_sqhd, new_sqhd; + u16 sqhd; + if (status) nvmet_set_status(req, status); - if (req->sq->size) - req->sq->sqhd = (req->sq->sqhd + 1) % req->sq->size; - req->rsp->sq_head = cpu_to_le16(req->sq->sqhd); + if (req->sq->size) { + do { + old_sqhd = req->sq->sqhd; + new_sqhd = (old_sqhd + 1) % req->sq->size; + } while (cmpxchg(&req->sq->sqhd, old_sqhd, new_sqhd) != + old_sqhd); + } + sqhd = req->sq->sqhd & 0x0000FFFF; + req->rsp->sq_head = cpu_to_le16(sqhd); req->rsp->sq_id = cpu_to_le16(req->sq->qid); req->rsp->command_id = req->cmd->common.command_id; diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 7b8e20adf760..87e429bfcd8a 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -74,7 +74,7 @@ struct nvmet_sq { struct percpu_ref ref; u16 qid; u16 size; - u16 sqhd; + u32 sqhd; struct completion free_done; struct completion confirm_done; }; diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 3f6b34febbf1..433af328d981 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -534,8 +534,16 @@ static irqreturn_t amd_gpio_irq_handler(int irq, void *dev_id) continue; irq = irq_find_mapping(gc->irqdomain, irqnr + i); generic_handle_irq(irq); - /* Clear interrupt */ + + /* Clear interrupt. + * We must read the pin register again, in case the + * value was changed while executing + * generic_handle_irq() above. + */ + raw_spin_lock_irqsave(&gpio_dev->lock, flags); + regval = readl(regs + i); writel(regval, regs + i); + raw_spin_unlock_irqrestore(&gpio_dev->lock, flags); ret = IRQ_HANDLED; } } diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index 3e40d4245512..9c950bbf07ba 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -407,10 +407,10 @@ static int mcp23s08_get(struct gpio_chip *chip, unsigned offset) ret = mcp_read(mcp, MCP_GPIO, &status); if (ret < 0) status = 0; - else + else { + mcp->cached_gpio = status; status = !!(status & (1 << offset)); - - mcp->cached_gpio = status; + } mutex_unlock(&mcp->lock); return status; diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c index bb792a52248b..e03fa31446ca 100644 --- a/drivers/platform/x86/intel_pmc_ipc.c +++ b/drivers/platform/x86/intel_pmc_ipc.c @@ -33,6 +33,7 @@ #include <linux/suspend.h> #include <linux/acpi.h> #include <linux/io-64-nonatomic-lo-hi.h> +#include <linux/spinlock.h> #include <asm/intel_pmc_ipc.h> @@ -131,6 +132,7 @@ static struct intel_pmc_ipc_dev { /* gcr */ void __iomem *gcr_mem_base; bool has_gcr_regs; + spinlock_t gcr_lock; /* punit */ struct platform_device *punit_dev; @@ -225,17 +227,17 @@ int intel_pmc_gcr_read(u32 offset, u32 *data) { int ret; - mutex_lock(&ipclock); + spin_lock(&ipcdev.gcr_lock); ret = is_gcr_valid(offset); if (ret < 0) { - mutex_unlock(&ipclock); + spin_unlock(&ipcdev.gcr_lock); return ret; } *data = readl(ipcdev.gcr_mem_base + offset); - mutex_unlock(&ipclock); + spin_unlock(&ipcdev.gcr_lock); return 0; } @@ -255,17 +257,17 @@ int intel_pmc_gcr_write(u32 offset, u32 data) { int ret; - mutex_lock(&ipclock); + spin_lock(&ipcdev.gcr_lock); ret = is_gcr_valid(offset); if (ret < 0) { - mutex_unlock(&ipclock); + spin_unlock(&ipcdev.gcr_lock); return ret; } writel(data, ipcdev.gcr_mem_base + offset); - mutex_unlock(&ipclock); + spin_unlock(&ipcdev.gcr_lock); return 0; } @@ -287,7 +289,7 @@ int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val) u32 new_val; int ret = 0; - mutex_lock(&ipclock); + spin_lock(&ipcdev.gcr_lock); ret = is_gcr_valid(offset); if (ret < 0) @@ -309,7 +311,7 @@ int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val) } gcr_ipc_unlock: - mutex_unlock(&ipclock); + spin_unlock(&ipcdev.gcr_lock); return ret; } EXPORT_SYMBOL_GPL(intel_pmc_gcr_update); @@ -480,52 +482,41 @@ static irqreturn_t ioc(int irq, void *dev_id) static int ipc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { - resource_size_t pci_resource; + struct intel_pmc_ipc_dev *pmc = &ipcdev; int ret; - int len; - ipcdev.dev = &pci_dev_get(pdev)->dev; - ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ; + /* Only one PMC is supported */ + if (pmc->dev) + return -EBUSY; - ret = pci_enable_device(pdev); + pmc->irq_mode = IPC_TRIGGER_MODE_IRQ; + + spin_lock_init(&ipcdev.gcr_lock); + + ret = pcim_enable_device(pdev); if (ret) return ret; - ret = pci_request_regions(pdev, "intel_pmc_ipc"); + ret = pcim_iomap_regions(pdev, 1 << 0, pci_name(pdev)); if (ret) return ret; - pci_resource = pci_resource_start(pdev, 0); - len = pci_resource_len(pdev, 0); - if (!pci_resource || !len) { - dev_err(&pdev->dev, "Failed to get resource\n"); - return -ENOMEM; - } + init_completion(&pmc->cmd_complete); - init_completion(&ipcdev.cmd_complete); + pmc->ipc_base = pcim_iomap_table(pdev)[0]; - if (request_irq(pdev->irq, ioc, 0, "intel_pmc_ipc", &ipcdev)) { + ret = devm_request_irq(&pdev->dev, pdev->irq, ioc, 0, "intel_pmc_ipc", + pmc); + if (ret) { dev_err(&pdev->dev, "Failed to request irq\n"); - return -EBUSY; + return ret; } - ipcdev.ipc_base = ioremap_nocache(pci_resource, len); - if (!ipcdev.ipc_base) { - dev_err(&pdev->dev, "Failed to ioremap ipc base\n"); - free_irq(pdev->irq, &ipcdev); - ret = -ENOMEM; - } + pmc->dev = &pdev->dev; - return ret; -} + pci_set_drvdata(pdev, pmc); -static void ipc_pci_remove(struct pci_dev *pdev) -{ - free_irq(pdev->irq, &ipcdev); - pci_release_regions(pdev); - pci_dev_put(pdev); - iounmap(ipcdev.ipc_base); - ipcdev.dev = NULL; + return 0; } static const struct pci_device_id ipc_pci_ids[] = { @@ -540,7 +531,6 @@ static struct pci_driver ipc_pci_driver = { .name = "intel_pmc_ipc", .id_table = ipc_pci_ids, .probe = ipc_pci_probe, - .remove = ipc_pci_remove, }; static ssize_t intel_pmc_ipc_simple_cmd_store(struct device *dev, @@ -850,17 +840,12 @@ static int ipc_plat_get_res(struct platform_device *pdev) return -ENXIO; } size = PLAT_RESOURCE_IPC_SIZE + PLAT_RESOURCE_GCR_SIZE; + res->end = res->start + size - 1; + + addr = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(addr)) + return PTR_ERR(addr); - if (!request_mem_region(res->start, size, pdev->name)) { - dev_err(&pdev->dev, "Failed to request ipc resource\n"); - return -EBUSY; - } - addr = ioremap_nocache(res->start, size); - if (!addr) { - dev_err(&pdev->dev, "I/O memory remapping failed\n"); - release_mem_region(res->start, size); - return -ENOMEM; - } ipcdev.ipc_base = addr; ipcdev.gcr_mem_base = addr + PLAT_RESOURCE_GCR_OFFSET; @@ -917,12 +902,12 @@ MODULE_DEVICE_TABLE(acpi, ipc_acpi_ids); static int ipc_plat_probe(struct platform_device *pdev) { - struct resource *res; int ret; ipcdev.dev = &pdev->dev; ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ; init_completion(&ipcdev.cmd_complete); + spin_lock_init(&ipcdev.gcr_lock); ipcdev.irq = platform_get_irq(pdev, 0); if (ipcdev.irq < 0) { @@ -939,11 +924,11 @@ static int ipc_plat_probe(struct platform_device *pdev) ret = ipc_create_pmc_devices(); if (ret) { dev_err(&pdev->dev, "Failed to create pmc devices\n"); - goto err_device; + return ret; } - if (request_irq(ipcdev.irq, ioc, IRQF_NO_SUSPEND, - "intel_pmc_ipc", &ipcdev)) { + if (devm_request_irq(&pdev->dev, ipcdev.irq, ioc, IRQF_NO_SUSPEND, + "intel_pmc_ipc", &ipcdev)) { dev_err(&pdev->dev, "Failed to request irq\n"); ret = -EBUSY; goto err_irq; @@ -960,40 +945,22 @@ static int ipc_plat_probe(struct platform_device *pdev) return 0; err_sys: - free_irq(ipcdev.irq, &ipcdev); + devm_free_irq(&pdev->dev, ipcdev.irq, &ipcdev); err_irq: platform_device_unregister(ipcdev.tco_dev); platform_device_unregister(ipcdev.punit_dev); platform_device_unregister(ipcdev.telemetry_dev); -err_device: - iounmap(ipcdev.ipc_base); - res = platform_get_resource(pdev, IORESOURCE_MEM, - PLAT_RESOURCE_IPC_INDEX); - if (res) { - release_mem_region(res->start, - PLAT_RESOURCE_IPC_SIZE + - PLAT_RESOURCE_GCR_SIZE); - } + return ret; } static int ipc_plat_remove(struct platform_device *pdev) { - struct resource *res; - sysfs_remove_group(&pdev->dev.kobj, &intel_ipc_group); - free_irq(ipcdev.irq, &ipcdev); + devm_free_irq(&pdev->dev, ipcdev.irq, &ipcdev); platform_device_unregister(ipcdev.tco_dev); platform_device_unregister(ipcdev.punit_dev); platform_device_unregister(ipcdev.telemetry_dev); - iounmap(ipcdev.ipc_base); - res = platform_get_resource(pdev, IORESOURCE_MEM, - PLAT_RESOURCE_IPC_INDEX); - if (res) { - release_mem_region(res->start, - PLAT_RESOURCE_IPC_SIZE + - PLAT_RESOURCE_GCR_SIZE); - } ipcdev.dev = NULL; return 0; } diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index f18b36dd57dd..376a99b7cf5d 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -590,7 +590,7 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id) case AXP803_DCDC3: return !!(reg & BIT(6)); case AXP803_DCDC6: - return !!(reg & BIT(7)); + return !!(reg & BIT(5)); } break; diff --git a/drivers/regulator/rn5t618-regulator.c b/drivers/regulator/rn5t618-regulator.c index ef2be56460fe..790a4a73ea2c 100644 --- a/drivers/regulator/rn5t618-regulator.c +++ b/drivers/regulator/rn5t618-regulator.c @@ -29,7 +29,7 @@ static const struct regulator_ops rn5t618_reg_ops = { }; #define REG(rid, ereg, emask, vreg, vmask, min, max, step) \ - [RN5T618_##rid] = { \ + { \ .name = #rid, \ .of_match = of_match_ptr(#rid), \ .regulators_node = of_match_ptr("regulators"), \ diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 82ac331d9125..84752152d41f 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -357,6 +357,8 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device) adapter->next_port_scan = jiffies; + adapter->erp_action.adapter = adapter; + if (zfcp_qdio_setup(adapter)) goto failed; @@ -513,6 +515,9 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn, port->dev.groups = zfcp_port_attr_groups; port->dev.release = zfcp_port_release; + port->erp_action.adapter = adapter; + port->erp_action.port = port; + if (dev_set_name(&port->dev, "0x%016llx", (unsigned long long)wwpn)) { kfree(port); goto err_out; diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 6f848aeacec2..cbb8156bf5e0 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -194,9 +194,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &zfcp_sdev->status); erp_action = &zfcp_sdev->erp_action; - memset(erp_action, 0, sizeof(struct zfcp_erp_action)); - erp_action->port = port; - erp_action->sdev = sdev; + WARN_ON_ONCE(erp_action->port != port); + WARN_ON_ONCE(erp_action->sdev != sdev); if (!(atomic_read(&zfcp_sdev->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; @@ -209,8 +208,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, zfcp_erp_action_dismiss_port(port); atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status); erp_action = &port->erp_action; - memset(erp_action, 0, sizeof(struct zfcp_erp_action)); - erp_action->port = port; + WARN_ON_ONCE(erp_action->port != port); + WARN_ON_ONCE(erp_action->sdev != NULL); if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; break; @@ -220,7 +219,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, zfcp_erp_action_dismiss_adapter(adapter); atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status); erp_action = &adapter->erp_action; - memset(erp_action, 0, sizeof(struct zfcp_erp_action)); + WARN_ON_ONCE(erp_action->port != NULL); + WARN_ON_ONCE(erp_action->sdev != NULL); if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; @@ -230,7 +230,11 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, return NULL; } - erp_action->adapter = adapter; + WARN_ON_ONCE(erp_action->adapter != adapter); + memset(&erp_action->list, 0, sizeof(erp_action->list)); + memset(&erp_action->timer, 0, sizeof(erp_action->timer)); + erp_action->step = ZFCP_ERP_STEP_UNINITIALIZED; + erp_action->fsf_req_id = 0; erp_action->action = need; erp_action->status = act_status; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index ebea205f9de8..4d2ba5682493 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -116,10 +116,15 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev) struct zfcp_unit *unit; int npiv = adapter->connection_features & FSF_FEATURE_NPIV_MODE; + zfcp_sdev->erp_action.adapter = adapter; + zfcp_sdev->erp_action.sdev = sdev; + port = zfcp_get_port_by_wwpn(adapter, rport->port_name); if (!port) return -ENXIO; + zfcp_sdev->erp_action.port = port; + unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev)); if (unit) put_device(&unit->dev); diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 97d269f16888..1bc623ad3faf 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -302,9 +302,11 @@ int aac_send_shutdown(struct aac_dev * dev) return -ENOMEM; aac_fib_init(fibctx); - mutex_lock(&dev->ioctl_mutex); - dev->adapter_shutdown = 1; - mutex_unlock(&dev->ioctl_mutex); + if (!dev->adapter_shutdown) { + mutex_lock(&dev->ioctl_mutex); + dev->adapter_shutdown = 1; + mutex_unlock(&dev->ioctl_mutex); + } cmd = (struct aac_close *) fib_data(fibctx); cmd->command = cpu_to_le32(VM_CloseAll); diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 62beb2596466..c9252b138c1f 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -1551,8 +1551,9 @@ static void __aac_shutdown(struct aac_dev * aac) { int i; + mutex_lock(&aac->ioctl_mutex); aac->adapter_shutdown = 1; - aac_send_shutdown(aac); + mutex_unlock(&aac->ioctl_mutex); if (aac->aif_thread) { int i; @@ -1565,7 +1566,11 @@ static void __aac_shutdown(struct aac_dev * aac) } kthread_stop(aac->thread); } + + aac_send_shutdown(aac); + aac_adapter_disable_int(aac); + if (aac_is_src(aac)) { if (aac->max_msix > 1) { for (i = 0; i < aac->max_msix; i++) { diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 9abe81021484..4ed3d26ffdde 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4091,7 +4091,7 @@ static int hpsa_set_local_logical_count(struct ctlr_info *h, memset(id_ctlr, 0, sizeof(*id_ctlr)); rc = hpsa_bmic_id_controller(h, id_ctlr, sizeof(*id_ctlr)); if (!rc) - if (id_ctlr->configured_logical_drive_count < 256) + if (id_ctlr->configured_logical_drive_count < 255) *nlocals = id_ctlr->configured_logical_drive_count; else *nlocals = le16_to_cpu( diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 937209805baf..3bd956d3bc5d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3061,6 +3061,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) host->max_cmd_len, host->max_channel, host->max_lun, host->transportt, sht->vendor_id); + INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn); + /* Set up the irqs */ ret = qla2x00_request_irqs(ha, rsp); if (ret) @@ -3175,8 +3177,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) host->can_queue, base_vha->req, base_vha->mgmt_svr_loop_id, host->sg_tablesize); - INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn); - if (ha->mqenable) { bool mq = false; bool startit = false; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 9cf6a80fe297..ad3ea24f0885 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1379,8 +1379,6 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req) ret = scsi_setup_cmnd(sdev, req); out: - if (ret != BLKPREP_OK) - cmd->flags &= ~SCMD_INITIALIZED; return scsi_prep_return(q, req, ret); } @@ -1900,7 +1898,6 @@ static int scsi_mq_prep_fn(struct request *req) struct scsi_device *sdev = req->q->queuedata; struct Scsi_Host *shost = sdev->host; struct scatterlist *sg; - int ret; scsi_init_command(sdev, cmd); @@ -1934,10 +1931,7 @@ static int scsi_mq_prep_fn(struct request *req) blk_mq_start_request(req); - ret = scsi_setup_cmnd(sdev, req); - if (ret != BLK_STS_OK) - cmd->flags &= ~SCMD_INITIALIZED; - return ret; + return scsi_setup_cmnd(sdev, req); } static void scsi_mq_done(struct scsi_cmnd *cmd) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 0419c2298eab..aa28874e8fb9 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -837,7 +837,7 @@ sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo) val = 0; list_for_each_entry(srp, &sfp->rq_list, entry) { - if (val > SG_MAX_QUEUE) + if (val >= SG_MAX_QUEUE) break; rinfo[val].req_state = srp->done + 1; rinfo[val].problem = diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c index 6c7d7a460689..568e1c65aa82 100644 --- a/drivers/spi/spi-armada-3700.c +++ b/drivers/spi/spi-armada-3700.c @@ -99,11 +99,6 @@ /* A3700_SPI_IF_TIME_REG */ #define A3700_SPI_CLK_CAPT_EDGE BIT(7) -/* Flags and macros for struct a3700_spi */ -#define A3700_INSTR_CNT 1 -#define A3700_ADDR_CNT 3 -#define A3700_DUMMY_CNT 1 - struct a3700_spi { struct spi_master *master; void __iomem *base; @@ -117,9 +112,6 @@ struct a3700_spi { u8 byte_len; u32 wait_mask; struct completion done; - u32 addr_cnt; - u32 instr_cnt; - size_t hdr_cnt; }; static u32 spireg_read(struct a3700_spi *a3700_spi, u32 offset) @@ -161,7 +153,7 @@ static void a3700_spi_deactivate_cs(struct a3700_spi *a3700_spi, } static int a3700_spi_pin_mode_set(struct a3700_spi *a3700_spi, - unsigned int pin_mode) + unsigned int pin_mode, bool receiving) { u32 val; @@ -177,6 +169,9 @@ static int a3700_spi_pin_mode_set(struct a3700_spi *a3700_spi, break; case SPI_NBITS_QUAD: val |= A3700_SPI_DATA_PIN1; + /* RX during address reception uses 4-pin */ + if (receiving) + val |= A3700_SPI_ADDR_PIN; break; default: dev_err(&a3700_spi->master->dev, "wrong pin mode %u", pin_mode); @@ -392,7 +387,8 @@ static bool a3700_spi_wait_completion(struct spi_device *spi) spireg_write(a3700_spi, A3700_SPI_INT_MASK_REG, 0); - return true; + /* Timeout was reached */ + return false; } static bool a3700_spi_transfer_wait(struct spi_device *spi, @@ -446,59 +442,43 @@ static void a3700_spi_set_cs(struct spi_device *spi, bool enable) static void a3700_spi_header_set(struct a3700_spi *a3700_spi) { - u32 instr_cnt = 0, addr_cnt = 0, dummy_cnt = 0; + unsigned int addr_cnt; u32 val = 0; /* Clear the header registers */ spireg_write(a3700_spi, A3700_SPI_IF_INST_REG, 0); spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, 0); spireg_write(a3700_spi, A3700_SPI_IF_RMODE_REG, 0); + spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, 0); /* Set header counters */ if (a3700_spi->tx_buf) { - if (a3700_spi->buf_len <= a3700_spi->instr_cnt) { - instr_cnt = a3700_spi->buf_len; - } else if (a3700_spi->buf_len <= (a3700_spi->instr_cnt + - a3700_spi->addr_cnt)) { - instr_cnt = a3700_spi->instr_cnt; - addr_cnt = a3700_spi->buf_len - instr_cnt; - } else if (a3700_spi->buf_len <= a3700_spi->hdr_cnt) { - instr_cnt = a3700_spi->instr_cnt; - addr_cnt = a3700_spi->addr_cnt; - /* Need to handle the normal write case with 1 byte - * data - */ - if (!a3700_spi->tx_buf[instr_cnt + addr_cnt]) - dummy_cnt = a3700_spi->buf_len - instr_cnt - - addr_cnt; + /* + * when tx data is not 4 bytes aligned, there will be unexpected + * bytes out of SPI output register, since it always shifts out + * as whole 4 bytes. This might cause incorrect transaction with + * some devices. To avoid that, use SPI header count feature to + * transfer up to 3 bytes of data first, and then make the rest + * of data 4-byte aligned. + */ + addr_cnt = a3700_spi->buf_len % 4; + if (addr_cnt) { + val = (addr_cnt & A3700_SPI_ADDR_CNT_MASK) + << A3700_SPI_ADDR_CNT_BIT; + spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, val); + + /* Update the buffer length to be transferred */ + a3700_spi->buf_len -= addr_cnt; + + /* transfer 1~3 bytes through address count */ + val = 0; + while (addr_cnt--) { + val = (val << 8) | a3700_spi->tx_buf[0]; + a3700_spi->tx_buf++; + } + spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, val); } - val |= ((instr_cnt & A3700_SPI_INSTR_CNT_MASK) - << A3700_SPI_INSTR_CNT_BIT); - val |= ((addr_cnt & A3700_SPI_ADDR_CNT_MASK) - << A3700_SPI_ADDR_CNT_BIT); - val |= ((dummy_cnt & A3700_SPI_DUMMY_CNT_MASK) - << A3700_SPI_DUMMY_CNT_BIT); } - spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, val); - - /* Update the buffer length to be transferred */ - a3700_spi->buf_len -= (instr_cnt + addr_cnt + dummy_cnt); - - /* Set Instruction */ - val = 0; - while (instr_cnt--) { - val = (val << 8) | a3700_spi->tx_buf[0]; - a3700_spi->tx_buf++; - } - spireg_write(a3700_spi, A3700_SPI_IF_INST_REG, val); - - /* Set Address */ - val = 0; - while (addr_cnt--) { - val = (val << 8) | a3700_spi->tx_buf[0]; - a3700_spi->tx_buf++; - } - spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, val); } static int a3700_is_wfifo_full(struct a3700_spi *a3700_spi) @@ -512,35 +492,12 @@ static int a3700_is_wfifo_full(struct a3700_spi *a3700_spi) static int a3700_spi_fifo_write(struct a3700_spi *a3700_spi) { u32 val; - int i = 0; while (!a3700_is_wfifo_full(a3700_spi) && a3700_spi->buf_len) { - val = 0; - if (a3700_spi->buf_len >= 4) { - val = cpu_to_le32(*(u32 *)a3700_spi->tx_buf); - spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, val); - - a3700_spi->buf_len -= 4; - a3700_spi->tx_buf += 4; - } else { - /* - * If the remained buffer length is less than 4-bytes, - * we should pad the write buffer with all ones. So that - * it avoids overwrite the unexpected bytes following - * the last one. - */ - val = GENMASK(31, 0); - while (a3700_spi->buf_len) { - val &= ~(0xff << (8 * i)); - val |= *a3700_spi->tx_buf++ << (8 * i); - i++; - a3700_spi->buf_len--; - - spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, - val); - } - break; - } + val = cpu_to_le32(*(u32 *)a3700_spi->tx_buf); + spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, val); + a3700_spi->buf_len -= 4; + a3700_spi->tx_buf += 4; } return 0; @@ -645,15 +602,18 @@ static int a3700_spi_transfer_one(struct spi_master *master, a3700_spi->rx_buf = xfer->rx_buf; a3700_spi->buf_len = xfer->len; - /* SPI transfer headers */ - a3700_spi_header_set(a3700_spi); - if (xfer->tx_buf) nbits = xfer->tx_nbits; else if (xfer->rx_buf) nbits = xfer->rx_nbits; - a3700_spi_pin_mode_set(a3700_spi, nbits); + a3700_spi_pin_mode_set(a3700_spi, nbits, xfer->rx_buf ? true : false); + + /* Flush the FIFOs */ + a3700_spi_fifo_flush(a3700_spi); + + /* Transfer first bytes of data when buffer is not 4-byte aligned */ + a3700_spi_header_set(a3700_spi); if (xfer->rx_buf) { /* Set read data length */ @@ -733,16 +693,11 @@ static int a3700_spi_transfer_one(struct spi_master *master, dev_err(&spi->dev, "wait wfifo empty timed out\n"); return -ETIMEDOUT; } - } else { - /* - * If the instruction in SPI_INSTR does not require data - * to be written to the SPI device, wait until SPI_RDY - * is 1 for the SPI interface to be in idle. - */ - if (!a3700_spi_transfer_wait(spi, A3700_SPI_XFER_RDY)) { - dev_err(&spi->dev, "wait xfer ready timed out\n"); - return -ETIMEDOUT; - } + } + + if (!a3700_spi_transfer_wait(spi, A3700_SPI_XFER_RDY)) { + dev_err(&spi->dev, "wait xfer ready timed out\n"); + return -ETIMEDOUT; } val = spireg_read(a3700_spi, A3700_SPI_IF_CFG_REG); @@ -834,10 +789,6 @@ static int a3700_spi_probe(struct platform_device *pdev) memset(spi, 0, sizeof(struct a3700_spi)); spi->master = master; - spi->instr_cnt = A3700_INSTR_CNT; - spi->addr_cnt = A3700_ADDR_CNT; - spi->hdr_cnt = A3700_INSTR_CNT + A3700_ADDR_CNT + - A3700_DUMMY_CNT; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); spi->base = devm_ioremap_resource(dev, res); diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c index 6ef6c44f39f5..a172ab299e80 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -1250,7 +1250,7 @@ int bcm_qspi_probe(struct platform_device *pdev, goto qspi_probe_err; } } else { - goto qspi_probe_err; + goto qspi_resource_err; } res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "bspi"); @@ -1272,7 +1272,7 @@ int bcm_qspi_probe(struct platform_device *pdev, qspi->base[CHIP_SELECT] = devm_ioremap_resource(dev, res); if (IS_ERR(qspi->base[CHIP_SELECT])) { ret = PTR_ERR(qspi->base[CHIP_SELECT]); - goto qspi_probe_err; + goto qspi_resource_err; } } @@ -1280,7 +1280,7 @@ int bcm_qspi_probe(struct platform_device *pdev, GFP_KERNEL); if (!qspi->dev_ids) { ret = -ENOMEM; - goto qspi_probe_err; + goto qspi_resource_err; } for (val = 0; val < num_irqs; val++) { @@ -1369,8 +1369,9 @@ qspi_reg_err: bcm_qspi_hw_uninit(qspi); clk_disable_unprepare(qspi->clk); qspi_probe_err: - spi_master_put(master); kfree(qspi->dev_ids); +qspi_resource_err: + spi_master_put(master); return ret; } /* probe function to be called by SoC specific platform driver probe */ diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index 680cdf549506..ba9743fa2326 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -263,8 +263,8 @@ static int stm32_spi_prepare_mbr(struct stm32_spi *spi, u32 speed_hz) * no need to check it there. * However, we need to ensure the following calculations. */ - if ((div < SPI_MBR_DIV_MIN) && - (div > SPI_MBR_DIV_MAX)) + if (div < SPI_MBR_DIV_MIN || + div > SPI_MBR_DIV_MAX) return -EINVAL; /* Determine the first power of 2 greater than or equal to div */ diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 6e65524cbfd9..e8b5a5e21b2e 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -45,7 +45,6 @@ #define CREATE_TRACE_POINTS #include <trace/events/spi.h> -#define SPI_DYN_FIRST_BUS_NUM 0 static DEFINE_IDR(spi_master_idr); @@ -2086,7 +2085,7 @@ int spi_register_controller(struct spi_controller *ctlr) struct device *dev = ctlr->dev.parent; struct boardinfo *bi; int status = -ENODEV; - int id; + int id, first_dynamic; if (!dev) return -ENODEV; @@ -2116,9 +2115,15 @@ int spi_register_controller(struct spi_controller *ctlr) } } if (ctlr->bus_num < 0) { + first_dynamic = of_alias_get_highest_id("spi"); + if (first_dynamic < 0) + first_dynamic = 0; + else + first_dynamic++; + mutex_lock(&board_lock); - id = idr_alloc(&spi_master_idr, ctlr, SPI_DYN_FIRST_BUS_NUM, 0, - GFP_KERNEL); + id = idr_alloc(&spi_master_idr, ctlr, first_dynamic, + 0, GFP_KERNEL); mutex_unlock(&board_lock); if (WARN(id < 0, "couldn't get idr")) return id; diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 82360594fa8e..57efbd3b053b 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -1024,6 +1024,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) mutex_unlock(&priv->lock); if (use_ptemod) { + map->pages_vm_start = vma->vm_start; err = apply_to_page_range(vma->vm_mm, vma->vm_start, vma->vm_end - vma->vm_start, find_grant_ptes, map); @@ -1061,7 +1062,6 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) set_grant_ptes_as_special, NULL); } #endif - map->pages_vm_start = vma->vm_start; } return 0; diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index e89136ab851e..b437fccd4e62 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -57,7 +57,7 @@ static int register_balloon(struct device *dev); static void watch_target(struct xenbus_watch *watch, const char *path, const char *token) { - unsigned long long new_target; + unsigned long long new_target, static_max; int err; static bool watch_fired; static long target_diff; @@ -72,13 +72,20 @@ static void watch_target(struct xenbus_watch *watch, * pages. PAGE_SHIFT converts bytes to pages, hence PAGE_SHIFT - 10. */ new_target >>= PAGE_SHIFT - 10; - if (watch_fired) { - balloon_set_new_target(new_target - target_diff); - return; + + if (!watch_fired) { + watch_fired = true; + err = xenbus_scanf(XBT_NIL, "memory", "static-max", "%llu", + &static_max); + if (err != 1) + static_max = new_target; + else + static_max >>= PAGE_SHIFT - 10; + target_diff = xen_pv_domain() ? 0 + : static_max - balloon_stats.target_pages; } - watch_fired = true; - target_diff = new_target - balloon_stats.target_pages; + balloon_set_new_target(new_target - target_diff); } static struct xenbus_watch target_watch = { .node = "memory/target", |