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ntb: Use caddr_t to simplify pointer arithmetic

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Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
cem 2015-11-11 18:54:58 +00:00
parent 0fbd5a20bf
commit 43eab24206
3 changed files with 15 additions and 16 deletions
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21
sys/dev/ntb/if_ntb/if_ntb.c
View File

@ -143,7 +143,7 @@ struct ntb_transport_qp {
void *data, int len);
struct ntb_queue_list tx_free_q;
struct mtx ntb_tx_free_q_lock;
void *tx_mw;
caddr_t tx_mw;
bus_addr_t tx_mw_phys;
ntb_q_idx_t tx_index;
ntb_q_idx_t tx_max_entry;
@ -158,7 +158,7 @@ struct ntb_transport_qp {
struct mtx ntb_rx_q_lock;
struct task rx_completion_task;
struct task rxc_db_work;
void *rx_buff;
caddr_t rx_buff;
ntb_q_idx_t rx_index;
ntb_q_idx_t rx_max_entry;
uint64_t rx_max_frame;
@ -197,11 +197,11 @@ struct ntb_transport_mw {
size_t xlat_align;
size_t xlat_align_size;
/* Tx buff is off vbase / phys_addr */
void *vbase;
caddr_t vbase;
size_t xlat_size;
size_t buff_size;
/* Rx buff is off virt_addr / dma_addr */
void *virt_addr;
caddr_t virt_addr;
bus_addr_t dma_addr;
};
@ -560,7 +560,7 @@ ntb_transport_init(struct ntb_softc *ntb)
mw->buff_size = 0;
mw->xlat_size = 0;
mw->virt_addr = 0;
mw->virt_addr = NULL;
mw->dma_addr = 0;
}
@ -665,7 +665,7 @@ ntb_transport_init_queue(struct ntb_transport_ctx *nt, unsigned int qp_num)
tx_size = mw_size / num_qps_mw;
qp_offset = tx_size * qp_num / mw_count;
qp->tx_mw = (char *)mw->vbase + qp_offset;
qp->tx_mw = mw->vbase + qp_offset;
KASSERT(qp->tx_mw != NULL, ("uh oh?"));
/* XXX Assumes that a vm_paddr_t is equivalent to bus_addr_t */
@ -673,7 +673,7 @@ ntb_transport_init_queue(struct ntb_transport_ctx *nt, unsigned int qp_num)
KASSERT(qp->tx_mw_phys != 0, ("uh oh?"));
tx_size -= sizeof(struct ntb_rx_info);
qp->rx_info = (void *)((char *)qp->tx_mw + tx_size);
qp->rx_info = (void *)(qp->tx_mw + tx_size);
/* Due to house-keeping, there must be at least 2 buffs */
qp->tx_max_frame = qmin(tx_size / 2,
@ -1356,10 +1356,10 @@ ntb_transport_setup_qp_mw(struct ntb_transport_ctx *nt, unsigned int qp_num)
num_qps_mw = nt->qp_count / mw_count;
rx_size = mw->xlat_size / num_qps_mw;
qp->rx_buff = (char *)mw->virt_addr + rx_size * qp_num / mw_count;
qp->rx_buff = mw->virt_addr + rx_size * qp_num / mw_count;
rx_size -= sizeof(struct ntb_rx_info);
qp->remote_rx_info = (void*)((char *)qp->rx_buff + rx_size);
qp->remote_rx_info = (void*)(qp->rx_buff + rx_size);
/* Due to house-keeping, there must be at least 2 buffs */
qp->rx_max_frame = qmin(rx_size / 2,
@ -1371,8 +1371,7 @@ ntb_transport_setup_qp_mw(struct ntb_transport_ctx *nt, unsigned int qp_num)
/* Set up the hdr offsets with 0s */
for (i = 0; i < qp->rx_max_entry; i++) {
offset = (void *)((uint8_t *)qp->rx_buff +
qp->rx_max_frame * (i + 1) -
offset = (void *)(qp->rx_buff + qp->rx_max_frame * (i + 1) -
sizeof(struct ntb_payload_header));
memset(offset, 0, sizeof(struct ntb_payload_header));
}

8
sys/dev/ntb/ntb_hw/ntb_hw.c
View File

@ -111,8 +111,8 @@ struct ntb_pci_bar_info {
int pci_resource_id;
struct resource *pci_resource;
vm_paddr_t pbase;
void *vbase;
u_long size;
caddr_t vbase;
vm_size_t size;
/* Configuration register offsets */
uint32_t psz_off;
@ -2404,7 +2404,7 @@ ntb_peer_spad_read(struct ntb_softc *ntb, unsigned int idx, uint32_t *val)
*/
int
ntb_mw_get_range(struct ntb_softc *ntb, unsigned mw_idx, vm_paddr_t *base,
void **vbase, size_t *size, size_t *align, size_t *align_size)
caddr_t *vbase, size_t *size, size_t *align, size_t *align_size)
{
struct ntb_pci_bar_info *bar;
size_t bar_b2b_off;
@ -2423,7 +2423,7 @@ ntb_mw_get_range(struct ntb_softc *ntb, unsigned mw_idx, vm_paddr_t *base,
if (base != NULL)
*base = bar->pbase + bar_b2b_off;
if (vbase != NULL)
*vbase = (char *)bar->vbase + bar_b2b_off;
*vbase = bar->vbase + bar_b2b_off;
if (size != NULL)
*size = bar->size - bar_b2b_off;
if (align != NULL)

2
sys/dev/ntb/ntb_hw/ntb_hw.h
View File

@ -77,7 +77,7 @@ void ntb_clear_ctx(struct ntb_softc *);
uint8_t ntb_mw_count(struct ntb_softc *);
int ntb_mw_get_range(struct ntb_softc *, unsigned mw_idx, vm_paddr_t *base,
void **vbase, size_t *size, size_t *align, size_t *align_size);
caddr_t *vbase, size_t *size, size_t *align, size_t *align_size);
int ntb_mw_set_trans(struct ntb_softc *, unsigned mw_idx, bus_addr_t, size_t);
int ntb_mw_clear_trans(struct ntb_softc *, unsigned mw_idx);