From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/infiniband/sw/rdmavt/ah.c | 45 +++++++++++++++++----------------------------
1 files changed, 17 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/infiniband/sw/rdmavt/ah.c b/kernel/drivers/infiniband/sw/rdmavt/ah.c
index 084bb4b..b938c4f 100644
--- a/kernel/drivers/infiniband/sw/rdmavt/ah.c
+++ b/kernel/drivers/infiniband/sw/rdmavt/ah.c
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2016 Intel Corporation.
+ * Copyright(c) 2016 - 2019 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
@@ -89,71 +89,60 @@
/**
* rvt_create_ah - create an address handle
- * @pd: the protection domain
- * @ah_attr: the attributes of the AH
+ * @ibah: the IB address handle
+ * @init_attr: the attributes of the AH
* @udata: pointer to user's input output buffer information.
*
* This may be called from interrupt context.
*
- * Return: newly allocated ah
+ * Return: 0 on success
*/
-struct ib_ah *rvt_create_ah(struct ib_pd *pd,
- struct rdma_ah_attr *ah_attr,
- struct ib_udata *udata)
+int rvt_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
+ struct ib_udata *udata)
{
- struct rvt_ah *ah;
- struct rvt_dev_info *dev = ib_to_rvt(pd->device);
+ struct rvt_ah *ah = ibah_to_rvtah(ibah);
+ struct rvt_dev_info *dev = ib_to_rvt(ibah->device);
unsigned long flags;
- if (rvt_check_ah(pd->device, ah_attr))
- return ERR_PTR(-EINVAL);
-
- ah = kmalloc(sizeof(*ah), GFP_ATOMIC);
- if (!ah)
- return ERR_PTR(-ENOMEM);
+ if (rvt_check_ah(ibah->device, init_attr->ah_attr))
+ return -EINVAL;
spin_lock_irqsave(&dev->n_ahs_lock, flags);
if (dev->n_ahs_allocated == dev->dparms.props.max_ah) {
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
- kfree(ah);
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
}
dev->n_ahs_allocated++;
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
- rdma_copy_ah_attr(&ah->attr, ah_attr);
-
- atomic_set(&ah->refcount, 0);
+ rdma_copy_ah_attr(&ah->attr, init_attr->ah_attr);
if (dev->driver_f.notify_new_ah)
- dev->driver_f.notify_new_ah(pd->device, ah_attr, ah);
+ dev->driver_f.notify_new_ah(ibah->device,
+ init_attr->ah_attr, ah);
- return &ah->ibah;
+ return 0;
}
/**
* rvt_destory_ah - Destory an address handle
* @ibah: address handle
+ * @destroy_flags: destroy address handle flags (see enum rdma_destroy_ah_flags)
*
* Return: 0 on success
*/
-int rvt_destroy_ah(struct ib_ah *ibah)
+int rvt_destroy_ah(struct ib_ah *ibah, u32 destroy_flags)
{
struct rvt_dev_info *dev = ib_to_rvt(ibah->device);
struct rvt_ah *ah = ibah_to_rvtah(ibah);
unsigned long flags;
-
- if (atomic_read(&ah->refcount) != 0)
- return -EBUSY;
spin_lock_irqsave(&dev->n_ahs_lock, flags);
dev->n_ahs_allocated--;
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
rdma_destroy_ah_attr(&ah->attr);
- kfree(ah);
-
return 0;
}
--
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