From: Yang Shen shenyang39@huawei.com
mainline inclusion from mainline-v5.11-rc1 commit 1dc440355e472a60a98cb4ec9aa5ec56267a96fc category: feature bugzilla: 173981 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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The patch 'irqchip/gic-v3-its: Balance initial LPI affinity across CPUs' set the IRQ to an uncentain CPU. If an IRQ is bound to the CPU used by the thread which is sending request, the throughput will be just half.
So allocate a 'work_queue' and set as 'WQ_UNBOUND' to do the back half work on some different CPUS.
Signed-off-by: Yang Shen shenyang39@huawei.com Reviewed-by: Zaibo Xu xuzaibo@huawei.com Reviewed-by: Zhou Wang wangzhou1@hisilicon.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Mingqiang Ling lingmingqiang@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/crypto/hisilicon/zip/zip_main.c | 26 ++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 3d1524b63ea8..4fb5a32bf830 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -747,6 +747,8 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) { + int ret; + qm->pdev = pdev; qm->ver = pdev->revision; qm->algs = "zlib\ngzip"; @@ -772,7 +774,25 @@ static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) qm->qp_num = HZIP_QUEUE_NUM_V1 - HZIP_PF_DEF_Q_NUM; }
- return hisi_qm_init(qm); + qm->wq = alloc_workqueue("%s", WQ_HIGHPRI | WQ_MEM_RECLAIM | + WQ_UNBOUND, num_online_cpus(), + pci_name(qm->pdev)); + if (!qm->wq) { + pci_err(qm->pdev, "fail to alloc workqueue\n"); + return -ENOMEM; + } + + ret = hisi_qm_init(qm); + if (ret) + destroy_workqueue(qm->wq); + + return ret; +} + +static void hisi_zip_qm_uninit(struct hisi_qm *qm) +{ + hisi_qm_uninit(qm); + destroy_workqueue(qm->wq); }
static int hisi_zip_probe_init(struct hisi_zip *hisi_zip) @@ -854,7 +874,7 @@ static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id) hisi_qm_dev_err_uninit(qm);
err_qm_uninit: - hisi_qm_uninit(qm); + hisi_zip_qm_uninit(qm);
return ret; } @@ -872,7 +892,7 @@ static void hisi_zip_remove(struct pci_dev *pdev) hisi_zip_debugfs_exit(qm); hisi_qm_stop(qm, QM_NORMAL); hisi_qm_dev_err_uninit(qm); - hisi_qm_uninit(qm); + hisi_zip_qm_uninit(qm); }
static const struct pci_error_handlers hisi_zip_err_handler = {