* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <rte_memzone.h>
+
#include "bnxt.h"
+#include "bnxt_cpr.h"
#include "bnxt_ring.h"
+#include "bnxt_txr.h"
+
+#include "hsi_struct_def_dpdk.h"
/*
* Generic ring handling
*ring->vmem = NULL;
}
}
+
+/*
+ * Allocates a completion ring with vmem and stats optionally also allocating
+ * a TX and/or RX ring. Passing NULL as tx_ring_info and/or rx_ring_info
+ * to not allocate them.
+ *
+ * Order in the allocation is:
+ * stats - Always non-zero length
+ * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
+ * tx vmem - Only non-zero length if tx_ring_info is not NULL
+ * rx vmem - Only non-zero length if rx_ring_info is not NULL
+ * cp bd ring - Always non-zero length
+ * tx bd ring - Only non-zero length if tx_ring_info is not NULL
+ * rx bd ring - Only non-zero length if rx_ring_info is not NULL
+ */
+int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
+ struct bnxt_tx_ring_info *tx_ring_info,
+ struct bnxt_rx_ring_info *rx_ring_info,
+ struct bnxt_cp_ring_info *cp_ring_info,
+ const char *suffix)
+{
+ struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
+ struct bnxt_ring *tx_ring;
+ /* TODO: RX ring */
+ /* struct bnxt_ring *rx_ring; */
+ struct rte_pci_device *pdev = bp->pdev;
+ const struct rte_memzone *mz = NULL;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+
+ int stats_len = (tx_ring_info || rx_ring_info) ?
+ RTE_CACHE_LINE_ROUNDUP(sizeof(struct ctx_hw_stats64)) : 0;
+
+ int cp_vmem_start = stats_len;
+ int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
+
+ int tx_vmem_start = cp_vmem_start + cp_vmem_len;
+ int tx_vmem_len =
+ tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
+ tx_ring_struct->vmem_size) : 0;
+
+ int rx_vmem_start = tx_vmem_start + tx_vmem_len;
+ /* TODO: RX ring */
+ int rx_vmem_len = 0;
+ /*
+ * rx_ring_info ? RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
+ * rx_ring_struct->vmem_size) : 0;
+ */
+
+ int cp_ring_start = rx_vmem_start + rx_vmem_len;
+ int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
+ sizeof(struct cmpl_base));
+
+ int tx_ring_start = cp_ring_start + cp_ring_len;
+ int tx_ring_len = tx_ring_info ?
+ RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
+ sizeof(struct tx_bd_long)) : 0;
+
+ int rx_ring_start = tx_ring_start + tx_ring_len;
+ /* TODO: RX ring */
+ int rx_ring_len = 0;
+ /*
+ * rx_ring_info ?
+ * RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
+ * sizeof(struct rx_prod_pkt_bd)) : 0;
+ */
+
+ int total_alloc_len = rx_ring_start + rx_ring_len;
+
+ snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
+ "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
+ pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
+ suffix);
+ mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name, total_alloc_len,
+ SOCKET_ID_ANY,
+ RTE_MEMZONE_2MB |
+ RTE_MEMZONE_SIZE_HINT_ONLY);
+ if (mz == NULL)
+ return -ENOMEM;
+ }
+ memset(mz->addr, 0, mz->len);
+
+ if (tx_ring_info) {
+ tx_ring = tx_ring_info->tx_ring_struct;
+
+ tx_ring->bd = ((char *)mz->addr + tx_ring_start);
+ tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
+ tx_ring->bd_dma = mz->phys_addr + tx_ring_start;
+ tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
+
+ if (!tx_ring->bd)
+ return -ENOMEM;
+ if (tx_ring->vmem_size) {
+ tx_ring->vmem =
+ (void **)((char *)mz->addr + tx_vmem_start);
+ tx_ring_info->tx_buf_ring =
+ (struct bnxt_sw_tx_bd *)tx_ring->vmem;
+ }
+ }
+
+/*
+ * if (rx_ring_info) {
+ * rx_ring = &rx_ring_info->rx_ring_struct;
+ *
+ * rx_ring->bd = ((char *)mz->addr + rx_ring_start);
+ * rx_ring_info->rx_desc_ring =
+ * (struct rx_prod_pkt_bd *)rx_ring->bd;
+ * rx_ring->bd_dma = mz->phys_addr + rx_ring_start;
+ * rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
+ *
+ * if (!rx_ring->bd)
+ * return -ENOMEM;
+ * if (rx_ring->vmem_size) {
+ * rx_ring->vmem =
+ * (void **)((char *)mz->addr + rx_vmem_start);
+ * rx_ring_info->rx_buf_ring =
+ * (struct bnxt_sw_rx_bd *)rx_ring->vmem;
+ * }
+ * }
+ */
+
+ cp_ring->bd = ((char *)mz->addr + cp_ring_start);
+ cp_ring->bd_dma = mz->phys_addr + cp_ring_start;
+ cp_ring_info->cp_desc_ring = cp_ring->bd;
+ cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
+
+ if (!cp_ring->bd)
+ return -ENOMEM;
+ if (cp_ring->vmem_size)
+ *cp_ring->vmem = ((char *)mz->addr + stats_len);
+ if (stats_len) {
+ cp_ring_info->hw_stats = mz->addr;
+ cp_ring_info->hw_stats_map = mz->phys_addr;
+ }
+ cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
+ return 0;
+}
git.droids-corp.org / dpdk.git / blobdiff