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cxgb4: Support for user mode bar2 mappings with T4
Enhance cxgb4_t4_bar2_sge_qregs() and cxgb4_bar2_sge_qregs() to support T4 user mode mappings. Update all the current users as well. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -1185,6 +1185,7 @@ enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };
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int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
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int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
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unsigned int qid,
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unsigned int qid,
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enum t4_bar2_qtype qtype,
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enum t4_bar2_qtype qtype,
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int user,
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u64 *pbar2_qoffset,
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u64 *pbar2_qoffset,
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unsigned int *pbar2_qid);
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unsigned int *pbar2_qid);
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@ -2145,6 +2145,7 @@ EXPORT_SYMBOL(cxgb4_read_sge_timestamp);
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int cxgb4_bar2_sge_qregs(struct net_device *dev,
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int cxgb4_bar2_sge_qregs(struct net_device *dev,
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unsigned int qid,
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unsigned int qid,
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enum cxgb4_bar2_qtype qtype,
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enum cxgb4_bar2_qtype qtype,
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int user,
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u64 *pbar2_qoffset,
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u64 *pbar2_qoffset,
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unsigned int *pbar2_qid)
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unsigned int *pbar2_qid)
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{
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{
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@ -2153,6 +2154,7 @@ int cxgb4_bar2_sge_qregs(struct net_device *dev,
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(qtype == CXGB4_BAR2_QTYPE_EGRESS
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(qtype == CXGB4_BAR2_QTYPE_EGRESS
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? T4_BAR2_QTYPE_EGRESS
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? T4_BAR2_QTYPE_EGRESS
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: T4_BAR2_QTYPE_INGRESS),
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: T4_BAR2_QTYPE_INGRESS),
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user,
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pbar2_qoffset,
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pbar2_qoffset,
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pbar2_qid);
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pbar2_qid);
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}
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}
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@ -2351,7 +2353,7 @@ static void process_db_drop(struct work_struct *work)
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int ret;
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int ret;
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ret = cxgb4_t4_bar2_sge_qregs(adap, qid, T4_BAR2_QTYPE_EGRESS,
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ret = cxgb4_t4_bar2_sge_qregs(adap, qid, T4_BAR2_QTYPE_EGRESS,
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&bar2_qoffset, &bar2_qid);
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0, &bar2_qoffset, &bar2_qid);
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if (ret)
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if (ret)
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dev_err(adap->pdev_dev, "doorbell drop recovery: "
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dev_err(adap->pdev_dev, "doorbell drop recovery: "
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"qid=%d, pidx_inc=%d\n", qid, pidx_inc);
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"qid=%d, pidx_inc=%d\n", qid, pidx_inc);
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@ -306,6 +306,7 @@ enum cxgb4_bar2_qtype { CXGB4_BAR2_QTYPE_EGRESS, CXGB4_BAR2_QTYPE_INGRESS };
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int cxgb4_bar2_sge_qregs(struct net_device *dev,
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int cxgb4_bar2_sge_qregs(struct net_device *dev,
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unsigned int qid,
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unsigned int qid,
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enum cxgb4_bar2_qtype qtype,
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enum cxgb4_bar2_qtype qtype,
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int user,
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u64 *pbar2_qoffset,
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u64 *pbar2_qoffset,
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unsigned int *pbar2_qid);
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unsigned int *pbar2_qid);
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@ -2429,8 +2429,8 @@ static void __iomem *bar2_address(struct adapter *adapter,
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u64 bar2_qoffset;
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u64 bar2_qoffset;
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int ret;
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int ret;
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ret = cxgb4_t4_bar2_sge_qregs(adapter, qid, qtype,
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ret = cxgb4_t4_bar2_sge_qregs(adapter, qid, qtype, 0,
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&bar2_qoffset, pbar2_qid);
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&bar2_qoffset, pbar2_qid);
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if (ret)
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if (ret)
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return NULL;
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return NULL;
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@ -5102,6 +5102,7 @@ int t4_prep_adapter(struct adapter *adapter)
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* @adapter: the adapter
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* @adapter: the adapter
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* @qid: the Queue ID
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* @qid: the Queue ID
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* @qtype: the Ingress or Egress type for @qid
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* @qtype: the Ingress or Egress type for @qid
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* @user: true if this request is for a user mode queue
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* @pbar2_qoffset: BAR2 Queue Offset
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* @pbar2_qoffset: BAR2 Queue Offset
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* @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
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* @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
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*
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*
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@ -5125,6 +5126,7 @@ int t4_prep_adapter(struct adapter *adapter)
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int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
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int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
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unsigned int qid,
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unsigned int qid,
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enum t4_bar2_qtype qtype,
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enum t4_bar2_qtype qtype,
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int user,
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u64 *pbar2_qoffset,
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u64 *pbar2_qoffset,
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unsigned int *pbar2_qid)
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unsigned int *pbar2_qid)
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{
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{
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@ -5132,9 +5134,8 @@ int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
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u64 bar2_page_offset, bar2_qoffset;
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u64 bar2_page_offset, bar2_qoffset;
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unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
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unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
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/* T4 doesn't support BAR2 SGE Queue registers.
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/* T4 doesn't support BAR2 SGE Queue registers for kernel mode queues */
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*/
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if (!user && is_t4(adapter->params.chip))
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if (is_t4(adapter->params.chip))
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return -EINVAL;
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return -EINVAL;
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/* Get our SGE Page Size parameters.
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/* Get our SGE Page Size parameters.
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