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RDMA/hns: Remove unused RR mechanism

Browse source 
Round-robin (RR) is no longer used in the allocation of the bitmap table,
and all the function input parameters that use this mechanism are
BITMAP_NO_RR. The code that defines and uses the RR needs to be deleted.

Link: https://lore.kernel.org/r/1623325814-55737-4-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Yangyang Li 2021-06-10 19:50:11 +08:00 committed by Jason Gunthorpe
parent 1bc530c79d
commit 38e375b771
6 changed files with 12 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/infiniband/hw/hns/hns_roce_alloc.c
View file

@ -63,16 +63,14 @@ int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj)
return ret;
}
void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj,
int rr)
void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj)
{
obj &= bitmap->max + bitmap->reserved_top - 1;
spin_lock(&bitmap->lock);
clear_bit(obj, bitmap->table);
if (!rr)
bitmap->last = min(bitmap->last, obj);
bitmap->last = min(bitmap->last, obj);
bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
& bitmap->mask;
spin_unlock(&bitmap->lock);

6
drivers/infiniband/hw/hns/hns_roce_device.h
View file

@ -95,9 +95,6 @@
#define HNS_ROCE_HOP_NUM_0 0xff
#define BITMAP_NO_RR 0
#define BITMAP_RR 1
#define MR_TYPE_MR 0x00
#define MR_TYPE_FRMR 0x01
#define MR_TYPE_DMA 0x03
@ -1156,8 +1153,7 @@ void hns_roce_cleanup_srq_table(struct hns_roce_dev *hr_dev);
void hns_roce_cleanup_xrcd_table(struct hns_roce_dev *hr_dev);
int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj);
void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj,
int rr);
void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj);
int hns_roce_bitmap_init(struct hns_roce_bitmap *bitmap, u32 num, u32 mask,
u32 reserved_bot, u32 resetrved_top);
void hns_roce_bitmap_cleanup(struct hns_roce_bitmap *bitmap);

2
drivers/infiniband/hw/hns/hns_roce_hw_v1.c
View file

@ -1199,7 +1199,7 @@ static int hns_roce_v1_dereg_mr(struct hns_roce_dev *hr_dev,
mr->key, jiffies_to_usecs(jiffies) - jiffies_to_usecs(start));
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap,
key_to_hw_index(mr->key), 0);
key_to_hw_index(mr->key));
hns_roce_mtr_destroy(hr_dev, &mr->pbl_mtr);
kfree(mr);

6
drivers/infiniband/hw/hns/hns_roce_mr.c
View file

@ -91,7 +91,7 @@ static int alloc_mr_key(struct hns_roce_dev *hr_dev, struct hns_roce_mr *mr)
return 0;
err_free_bitmap:
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, obj, BITMAP_NO_RR);
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, obj);
return err;
}
@ -100,7 +100,7 @@ static void free_mr_key(struct hns_roce_dev *hr_dev, struct hns_roce_mr *mr)
unsigned long obj = key_to_hw_index(mr->key);
hns_roce_table_put(hr_dev, &hr_dev->mr_table.mtpt_table, obj);
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, obj, BITMAP_NO_RR);
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, obj);
}
static int alloc_mr_pbl(struct hns_roce_dev *hr_dev, struct hns_roce_mr *mr,
@ -504,7 +504,7 @@ static void hns_roce_mw_free(struct hns_roce_dev *hr_dev,
}
hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap,
key_to_hw_index(mw->rkey), BITMAP_NO_RR);
key_to_hw_index(mw->rkey));
}
static int hns_roce_mw_enable(struct hns_roce_dev *hr_dev,

7
drivers/infiniband/hw/hns/hns_roce_pd.c
View file

@ -41,7 +41,7 @@ static int hns_roce_pd_alloc(struct hns_roce_dev *hr_dev, unsigned long *pdn)
static void hns_roce_pd_free(struct hns_roce_dev *hr_dev, unsigned long pdn)
{
hns_roce_bitmap_free(&hr_dev->pd_bitmap, pdn, BITMAP_NO_RR);
hns_roce_bitmap_free(&hr_dev->pd_bitmap, pdn);
}
int hns_roce_init_pd_table(struct hns_roce_dev *hr_dev)
@ -121,8 +121,7 @@ int hns_roce_uar_alloc(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar)
void hns_roce_uar_free(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar)
{
hns_roce_bitmap_free(&hr_dev->uar_table.bitmap, uar->logic_idx,
BITMAP_NO_RR);
hns_roce_bitmap_free(&hr_dev->uar_table.bitmap, uar->logic_idx);
}
int hns_roce_init_uar_table(struct hns_roce_dev *hr_dev)
@ -155,7 +154,7 @@ static int hns_roce_xrcd_alloc(struct hns_roce_dev *hr_dev, u32 *xrcdn)
static void hns_roce_xrcd_free(struct hns_roce_dev *hr_dev,
u32 xrcdn)
{
hns_roce_bitmap_free(&hr_dev->xrcd_bitmap, xrcdn, BITMAP_NO_RR);
hns_roce_bitmap_free(&hr_dev->xrcd_bitmap, xrcdn);
}
int hns_roce_init_xrcd_table(struct hns_roce_dev *hr_dev)

4
drivers/infiniband/hw/hns/hns_roce_srq.c
View file

@ -132,7 +132,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
err_put:
hns_roce_table_put(hr_dev, &srq_table->table, srq->srqn);
err_out:
hns_roce_bitmap_free(&srq_table->bitmap, srq->srqn, BITMAP_NO_RR);
hns_roce_bitmap_free(&srq_table->bitmap, srq->srqn);
return ret;
}
@ -154,7 +154,7 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
wait_for_completion(&srq->free);
hns_roce_table_put(hr_dev, &srq_table->table, srq->srqn);
hns_roce_bitmap_free(&srq_table->bitmap, srq->srqn, BITMAP_NO_RR);
hns_roce_bitmap_free(&srq_table->bitmap, srq->srqn);
}
static int alloc_srq_idx(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,