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staging: qlge: Remove qlge_bq.len & size 

Given the way the driver currently works, these values are always known
at compile time.

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Link: https://lore.kernel.org/r/20190927101210.23856-13-bpoirier@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Benjamin Poirier 2019-09-27 19:12:06 +09:00 committed by Greg Kroah-Hartman
parent dc4eec33bf
commit ec705b983b
3 changed files with 39 additions and 57 deletions
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17
drivers/staging/qlge/qlge.h
View File

@ -34,8 +34,13 @@
#define NUM_TX_RING_ENTRIES 256
#define NUM_RX_RING_ENTRIES 256
#define NUM_SMALL_BUFFERS 512
#define NUM_LARGE_BUFFERS 512
/* Use the same len for sbq and lbq. Note that it seems like the device might
* support different sizes.
*/
#define QLGE_BQ_SHIFT 9
#define QLGE_BQ_LEN BIT(QLGE_BQ_SHIFT)
#define QLGE_BQ_SIZE (QLGE_BQ_LEN * sizeof(__le64))
#define DB_PAGE_SIZE 4096
/* Calculate the number of (4k) pages required to
@ -46,8 +51,8 @@
(((x * sizeof(u64)) % DB_PAGE_SIZE) ? 1 : 0))
#define RX_RING_SHADOW_SPACE (sizeof(u64) + \
MAX_DB_PAGES_PER_BQ(NUM_SMALL_BUFFERS) * sizeof(u64) + \
MAX_DB_PAGES_PER_BQ(NUM_LARGE_BUFFERS) * sizeof(u64))
MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN) * sizeof(u64) + \
MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN) * sizeof(u64))
#define LARGE_BUFFER_MAX_SIZE 8192
#define LARGE_BUFFER_MIN_SIZE 2048
@ -1419,8 +1424,6 @@ struct qlge_bq {
dma_addr_t base_indirect_dma;
struct qlge_bq_desc *queue;
void __iomem *prod_idx_db_reg;
u32 len; /* entry count */
u32 size; /* size in bytes of hw ring */
u32 prod_idx; /* current sw prod idx */
u32 curr_idx; /* next entry we expect */
u32 clean_idx; /* beginning of new descs */
@ -1439,6 +1442,8 @@ struct qlge_bq {
offsetof(struct rx_ring, lbq))); \
})
#define QLGE_BQ_WRAP(index) ((index) & (QLGE_BQ_LEN - 1))
struct rx_ring {
struct cqicb cqicb; /* The chip's completion queue init control block. */

4
drivers/staging/qlge/qlge_dbg.c
View File

@ -1774,8 +1774,6 @@ void ql_dump_rx_ring(struct rx_ring *rx_ring)
pr_err("rx_ring->lbq.base_indirect_dma = %llx\n",
(unsigned long long)rx_ring->lbq.base_indirect_dma);
pr_err("rx_ring->lbq = %p\n", rx_ring->lbq.queue);
pr_err("rx_ring->lbq.len = %d\n", rx_ring->lbq.len);
pr_err("rx_ring->lbq.size = %d\n", rx_ring->lbq.size);
pr_err("rx_ring->lbq.prod_idx_db_reg = %p\n",
rx_ring->lbq.prod_idx_db_reg);
pr_err("rx_ring->lbq.prod_idx = %d\n", rx_ring->lbq.prod_idx);
@ -1791,8 +1789,6 @@ void ql_dump_rx_ring(struct rx_ring *rx_ring)
pr_err("rx_ring->sbq.base_indirect_dma = %llx\n",
(unsigned long long)rx_ring->sbq.base_indirect_dma);
pr_err("rx_ring->sbq = %p\n", rx_ring->sbq.queue);
pr_err("rx_ring->sbq.len = %d\n", rx_ring->sbq.len);
pr_err("rx_ring->sbq.size = %d\n", rx_ring->sbq.size);
pr_err("rx_ring->sbq.prod_idx_db_reg addr = %p\n",
rx_ring->sbq.prod_idx_db_reg);
pr_err("rx_ring->sbq.prod_idx = %d\n", rx_ring->sbq.prod_idx);

75
drivers/staging/qlge/qlge_main.c
View File

@ -982,9 +982,8 @@ static struct qlge_bq_desc *qlge_get_curr_buf(struct qlge_bq *bq)
{
struct qlge_bq_desc *bq_desc;
bq_desc = &bq->queue[bq->curr_idx++];
if (bq->curr_idx == bq->len)
bq->curr_idx = 0;
bq_desc = &bq->queue[bq->curr_idx];
bq->curr_idx = QLGE_BQ_WRAP(bq->curr_idx + 1);
bq->free_cnt++;
return bq_desc;
@ -1149,15 +1148,11 @@ static void qlge_refill_bq(struct qlge_bq *bq)
return;
}
clean_idx++;
if (clean_idx == bq->len)
clean_idx = 0;
clean_idx = QLGE_BQ_WRAP(clean_idx + 1);
}
bq->clean_idx = clean_idx;
bq->prod_idx += 16;
if (bq->prod_idx == bq->len)
bq->prod_idx = 0;
bq->prod_idx = QLGE_BQ_WRAP(bq->prod_idx + 16);
bq->free_cnt -= 16;
}
@ -2732,8 +2727,7 @@ static void ql_free_lbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring
put_page(lbq_desc->p.pg_chunk.page);
lbq_desc->p.pg_chunk.page = NULL;
if (++curr_idx == rx_ring->lbq.len)
curr_idx = 0;
curr_idx = QLGE_BQ_WRAP(curr_idx + 1);
}
if (rx_ring->master_chunk.page) {
@ -2748,7 +2742,7 @@ static void ql_free_sbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring
{
int i;
for (i = 0; i < rx_ring->sbq.len; i++) {
for (i = 0; i < QLGE_BQ_LEN; i++) {
struct qlge_bq_desc *sbq_desc = &rx_ring->sbq.queue[i];
if (sbq_desc == NULL) {
@ -2799,7 +2793,8 @@ static int qlge_init_bq(struct qlge_bq *bq)
__le64 *buf_ptr;
int i;
bq->base = pci_alloc_consistent(qdev->pdev, bq->size, &bq->base_dma);
bq->base = pci_alloc_consistent(qdev->pdev, QLGE_BQ_SIZE,
&bq->base_dma);
if (!bq->base) {
netif_err(qdev, ifup, qdev->ndev,
"ring %u %s allocation failed.\n", rx_ring->cq_id,
@ -2807,16 +2802,16 @@ static int qlge_init_bq(struct qlge_bq *bq)
return -ENOMEM;
}
bq->queue = kmalloc_array(bq->len, sizeof(struct qlge_bq_desc),
bq->queue = kmalloc_array(QLGE_BQ_LEN, sizeof(struct qlge_bq_desc),
GFP_KERNEL);
if (!bq->queue)
return -ENOMEM;
memset(bq->queue, 0, bq->len * sizeof(struct qlge_bq_desc));
memset(bq->queue, 0, QLGE_BQ_LEN * sizeof(struct qlge_bq_desc));
buf_ptr = bq->base;
bq_desc = &bq->queue[0];
for (i = 0; i < bq->len; i++, buf_ptr++, bq_desc++) {
for (i = 0; i < QLGE_BQ_LEN; i++, buf_ptr++, bq_desc++) {
memset(bq_desc, 0, sizeof(*bq_desc));
bq_desc->index = i;
bq_desc->buf_ptr = buf_ptr;
@ -2830,8 +2825,7 @@ static void ql_free_rx_resources(struct ql_adapter *qdev,
{
/* Free the small buffer queue. */
if (rx_ring->sbq.base) {
pci_free_consistent(qdev->pdev,
rx_ring->sbq.size,
pci_free_consistent(qdev->pdev, QLGE_BQ_SIZE,
rx_ring->sbq.base, rx_ring->sbq.base_dma);
rx_ring->sbq.base = NULL;
}
@ -2842,8 +2836,7 @@ static void ql_free_rx_resources(struct ql_adapter *qdev,
/* Free the large buffer queue. */
if (rx_ring->lbq.base) {
pci_free_consistent(qdev->pdev,
rx_ring->lbq.size,
pci_free_consistent(qdev->pdev, QLGE_BQ_SIZE,
rx_ring->lbq.base, rx_ring->lbq.base_dma);
rx_ring->lbq.base = NULL;
}
@ -2879,16 +2872,13 @@ static int ql_alloc_rx_resources(struct ql_adapter *qdev,
return -ENOMEM;
}
if (rx_ring->sbq.len && qlge_init_bq(&rx_ring->sbq))
goto err_mem;
if (rx_ring->lbq.len && qlge_init_bq(&rx_ring->lbq))
goto err_mem;
if (rx_ring->cq_id < qdev->rss_ring_count &&
(qlge_init_bq(&rx_ring->sbq) || qlge_init_bq(&rx_ring->lbq))) {
ql_free_rx_resources(qdev, rx_ring);
return -ENOMEM;
}
return 0;
err_mem:
ql_free_rx_resources(qdev, rx_ring);
return -ENOMEM;
}
static void ql_tx_ring_clean(struct ql_adapter *qdev)
@ -2986,8 +2976,8 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
shadow_reg_dma += sizeof(u64);
rx_ring->lbq.base_indirect = shadow_reg;
rx_ring->lbq.base_indirect_dma = shadow_reg_dma;
shadow_reg += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq.len));
shadow_reg_dma += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq.len));
shadow_reg += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
shadow_reg_dma += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
rx_ring->sbq.base_indirect = shadow_reg;
rx_ring->sbq.base_indirect_dma = shadow_reg_dma;
@ -3021,7 +3011,7 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
cqicb->flags = FLAGS_LC | /* Load queue base address */
FLAGS_LV | /* Load MSI-X vector */
FLAGS_LI; /* Load irq delay values */
if (rx_ring->lbq.len) {
if (rx_ring->cq_id < qdev->rss_ring_count) {
cqicb->flags |= FLAGS_LL; /* Load lbq values */
tmp = (u64)rx_ring->lbq.base_dma;
base_indirect_ptr = rx_ring->lbq.base_indirect;
@ -3031,17 +3021,16 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
tmp += DB_PAGE_SIZE;
base_indirect_ptr++;
page_entries++;
} while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->lbq.len));
} while (page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
cqicb->lbq_addr = cpu_to_le64(rx_ring->lbq.base_indirect_dma);
cqicb->lbq_buf_size =
cpu_to_le16(QLGE_FIT16(qdev->lbq_buf_size));
cqicb->lbq_len = cpu_to_le16(QLGE_FIT16(rx_ring->lbq.len));
cqicb->lbq_len = cpu_to_le16(QLGE_FIT16(QLGE_BQ_LEN));
rx_ring->lbq.prod_idx = 0;
rx_ring->lbq.curr_idx = 0;
rx_ring->lbq.clean_idx = 0;
rx_ring->lbq.free_cnt = rx_ring->lbq.len;
}
if (rx_ring->sbq.len) {
rx_ring->lbq.free_cnt = QLGE_BQ_LEN;
cqicb->flags |= FLAGS_LS; /* Load sbq values */
tmp = (u64)rx_ring->sbq.base_dma;
base_indirect_ptr = rx_ring->sbq.base_indirect;
@ -3051,15 +3040,15 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
tmp += DB_PAGE_SIZE;
base_indirect_ptr++;
page_entries++;
} while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->sbq.len));
} while (page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
cqicb->sbq_addr =
cpu_to_le64(rx_ring->sbq.base_indirect_dma);
cqicb->sbq_buf_size = cpu_to_le16(SMALL_BUFFER_SIZE);
cqicb->sbq_len = cpu_to_le16(QLGE_FIT16(rx_ring->sbq.len));
cqicb->sbq_len = cpu_to_le16(QLGE_FIT16(QLGE_BQ_LEN));
rx_ring->sbq.prod_idx = 0;
rx_ring->sbq.curr_idx = 0;
rx_ring->sbq.clean_idx = 0;
rx_ring->sbq.free_cnt = rx_ring->sbq.len;
rx_ring->sbq.free_cnt = QLGE_BQ_LEN;
}
if (rx_ring->cq_id < qdev->rss_ring_count) {
/* Inbound completion handling rx_rings run in
@ -3986,11 +3975,7 @@ static int ql_configure_rings(struct ql_adapter *qdev)
rx_ring->cq_size =
rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb);
rx_ring->lbq.type = QLGE_LB;
rx_ring->lbq.len = NUM_LARGE_BUFFERS;
rx_ring->lbq.size = rx_ring->lbq.len * sizeof(__le64);
rx_ring->sbq.type = QLGE_SB;
rx_ring->sbq.len = NUM_SMALL_BUFFERS;
rx_ring->sbq.size = rx_ring->sbq.len * sizeof(__le64);
} else {
/*
* Outbound queue handles outbound completions only.
@ -3999,10 +3984,6 @@ static int ql_configure_rings(struct ql_adapter *qdev)
rx_ring->cq_len = qdev->tx_ring_size;
rx_ring->cq_size =
rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb);
rx_ring->lbq.len = 0;
rx_ring->lbq.size = 0;
rx_ring->sbq.len = 0;
rx_ring->sbq.size = 0;
}
}
return 0;