#include "mthca_dev.h"
-enum {
- MTHCA_RATE_TAVOR_FULL = 0,
- MTHCA_RATE_TAVOR_1X = 1,
- MTHCA_RATE_TAVOR_4X = 2,
- MTHCA_RATE_TAVOR_1X_DDR = 3
-};
-
-enum {
- MTHCA_RATE_MEMFREE_FULL = 0,
- MTHCA_RATE_MEMFREE_QUARTER = 1,
- MTHCA_RATE_MEMFREE_EIGHTH = 2,
- MTHCA_RATE_MEMFREE_HALF = 3
-};
-
struct mthca_av {
__be32 port_pd;
u8 reserved1;
__be32 dgid[4];
};
-static enum ib_rate memfree_rate_to_ib(u8 mthca_rate, u8 port_rate)
-{
- switch (mthca_rate) {
- case MTHCA_RATE_MEMFREE_EIGHTH:
- return mult_to_ib_rate(port_rate >> 3);
- case MTHCA_RATE_MEMFREE_QUARTER:
- return mult_to_ib_rate(port_rate >> 2);
- case MTHCA_RATE_MEMFREE_HALF:
- return mult_to_ib_rate(port_rate >> 1);
- case MTHCA_RATE_MEMFREE_FULL:
- default:
- return mult_to_ib_rate(port_rate);
- }
-}
-
-static enum ib_rate tavor_rate_to_ib(u8 mthca_rate, u8 port_rate)
-{
- switch (mthca_rate) {
- case MTHCA_RATE_TAVOR_1X: return IB_RATE_2_5_GBPS;
- case MTHCA_RATE_TAVOR_1X_DDR: return IB_RATE_5_GBPS;
- case MTHCA_RATE_TAVOR_4X: return IB_RATE_10_GBPS;
- default: return port_rate;
- }
-}
-
-enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port)
-{
- if (mthca_is_memfree(dev)) {
- /* Handle old Arbel FW */
- if (dev->limits.stat_rate_support == 0x3 && mthca_rate)
- return IB_RATE_2_5_GBPS;
-
- return memfree_rate_to_ib(mthca_rate, dev->rate[port - 1]);
- } else
- return tavor_rate_to_ib(mthca_rate, dev->rate[port - 1]);
-}
-
-static u8 ib_rate_to_memfree(u8 req_rate, u8 cur_rate)
-{
- if (cur_rate <= req_rate)
- return 0;
-
- /*
- * Inter-packet delay (IPD) to get from rate X down to a rate
- * no more than Y is (X - 1) / Y.
- */
- switch ((cur_rate - 1) / req_rate) {
- case 0: return MTHCA_RATE_MEMFREE_FULL;
- case 1: return MTHCA_RATE_MEMFREE_HALF;
- case 2: /* fall through */
- case 3: return MTHCA_RATE_MEMFREE_QUARTER;
- default: return MTHCA_RATE_MEMFREE_EIGHTH;
- }
-}
-
-static u8 ib_rate_to_tavor(u8 static_rate)
-{
- switch (static_rate) {
- case IB_RATE_2_5_GBPS: return MTHCA_RATE_TAVOR_1X;
- case IB_RATE_5_GBPS: return MTHCA_RATE_TAVOR_1X_DDR;
- case IB_RATE_10_GBPS: return MTHCA_RATE_TAVOR_4X;
- default: return MTHCA_RATE_TAVOR_FULL;
- }
-}
-
-u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port)
-{
- u8 rate;
-
- if (!static_rate || ib_rate_to_mult(static_rate) >= dev->rate[port - 1])
- return 0;
-
- if (mthca_is_memfree(dev))
- rate = ib_rate_to_memfree(ib_rate_to_mult(static_rate),
- dev->rate[port - 1]);
- else
- rate = ib_rate_to_tavor(static_rate);
-
- if (!(dev->limits.stat_rate_support & (1 << rate)))
- rate = 1;
-
- return rate;
-}
-
int mthca_create_ah(struct mthca_dev *dev,
struct mthca_pd *pd,
struct ib_ah_attr *ah_attr,
av->g_slid = ah_attr->src_path_bits;
av->dlid = cpu_to_be16(ah_attr->dlid);
av->msg_sr = (3 << 4) | /* 2K message */
- mthca_get_rate(dev, ah_attr->static_rate, ah_attr->port_num);
+ ah_attr->static_rate;
av->sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
if (ah_attr->ah_flags & IB_AH_GRH) {
av->g_slid |= 0x80;
switch (ah->type) {
case MTHCA_AH_ON_HCA:
mthca_free(&dev->av_table.alloc,
- (ah->avdma - dev->av_table.ddr_av_base) /
+ (ah->avdma - dev->av_table.ddr_av_base) /
MTHCA_AV_SIZE);
break;
return 0;
}
-int mthca_ah_query(struct ib_ah *ibah, struct ib_ah_attr *attr)
-{
- struct mthca_ah *ah = to_mah(ibah);
- struct mthca_dev *dev = to_mdev(ibah->device);
-
- /* Only implement for MAD and memfree ah for now. */
- if (ah->type == MTHCA_AH_ON_HCA)
- return -ENOSYS;
-
- memset(attr, 0, sizeof *attr);
- attr->dlid = be16_to_cpu(ah->av->dlid);
- attr->sl = be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 28;
- attr->port_num = be32_to_cpu(ah->av->port_pd) >> 24;
- attr->static_rate = mthca_rate_to_ib(dev, ah->av->msg_sr & 0x7,
- attr->port_num);
- attr->src_path_bits = ah->av->g_slid & 0x7F;
- attr->ah_flags = mthca_ah_grh_present(ah) ? IB_AH_GRH : 0;
-
- if (attr->ah_flags) {
- attr->grh.traffic_class =
- be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 20;
- attr->grh.flow_label =
- be32_to_cpu(ah->av->sl_tclass_flowlabel) & 0xfffff;
- attr->grh.hop_limit = ah->av->hop_limit;
- attr->grh.sgid_index = ah->av->gid_index &
- (dev->limits.gid_table_len - 1);
- memcpy(attr->grh.dgid.raw, ah->av->dgid, 16);
- }
-
- return 0;
-}
-
int __devinit mthca_init_av_table(struct mthca_dev *dev)
{
int err;
return -ENOMEM;
}
-void mthca_cleanup_av_table(struct mthca_dev *dev)
+void __devexit mthca_cleanup_av_table(struct mthca_dev *dev)
{
if (mthca_is_memfree(dev))
return;