u32 ofldCongDefer;
};
+struct sge_params {
+ u32 hps; /* host page size for our PF/VF */
+ u32 eq_qpp; /* egress queues/page for our PF/VF */
+ u32 iq_qpp; /* egress queues/page for our PF/VF */
+};
+
struct tp_params {
unsigned int ntxchan; /* # of Tx channels */
unsigned int tre; /* log2 of core clocks per TP tick */
};
struct adapter_params {
+ struct sge_params sge;
struct tp_params tp;
struct vpd_params vpd;
struct pci_params pci;
const u8 *fw_data, unsigned int fw_size,
struct fw_hdr *card_fw, enum dev_state state, int *reset);
int t4_prep_adapter(struct adapter *adapter);
+
+enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };
+int t4_bar2_sge_qregs(struct adapter *adapter,
+ unsigned int qid,
+ enum t4_bar2_qtype qtype,
+ u64 *pbar2_qoffset,
+ unsigned int *pbar2_qid);
+
+int t4_init_sge_params(struct adapter *adapter);
int t4_init_tp_params(struct adapter *adap);
int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
int t4_port_init(struct adapter *adap, int mbox, int pf, int vf);
}
/**
+ * t4_bar2_sge_qregs - return BAR2 SGE Queue register information
+ * @adapter: the adapter
+ * @qid: the Queue ID
+ * @qtype: the Ingress or Egress type for @qid
+ * @pbar2_qoffset: BAR2 Queue Offset
+ * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
+ *
+ * Returns the BAR2 SGE Queue Registers information associated with the
+ * indicated Absolute Queue ID. These are passed back in return value
+ * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
+ * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
+ *
+ * This may return an error which indicates that BAR2 SGE Queue
+ * registers aren't available. If an error is not returned, then the
+ * following values are returned:
+ *
+ * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
+ * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
+ *
+ * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
+ * require the "Inferred Queue ID" ability may be used. E.g. the
+ * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
+ * then these "Inferred Queue ID" register may not be used.
+ */
+int t4_bar2_sge_qregs(struct adapter *adapter,
+ unsigned int qid,
+ enum t4_bar2_qtype qtype,
+ u64 *pbar2_qoffset,
+ unsigned int *pbar2_qid)
+{
+ unsigned int page_shift, page_size, qpp_shift, qpp_mask;
+ u64 bar2_page_offset, bar2_qoffset;
+ unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
+
+ /* T4 doesn't support BAR2 SGE Queue registers.
+ */
+ if (is_t4(adapter->params.chip))
+ return -EINVAL;
+
+ /* Get our SGE Page Size parameters.
+ */
+ page_shift = adapter->params.sge.hps + 10;
+ page_size = 1 << page_shift;
+
+ /* Get the right Queues per Page parameters for our Queue.
+ */
+ qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
+ ? adapter->params.sge.eq_qpp
+ : adapter->params.sge.iq_qpp);
+ qpp_mask = (1 << qpp_shift) - 1;
+
+ /* Calculate the basics of the BAR2 SGE Queue register area:
+ * o The BAR2 page the Queue registers will be in.
+ * o The BAR2 Queue ID.
+ * o The BAR2 Queue ID Offset into the BAR2 page.
+ */
+ bar2_page_offset = ((qid >> qpp_shift) << page_shift);
+ bar2_qid = qid & qpp_mask;
+ bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
+
+ /* If the BAR2 Queue ID Offset is less than the Page Size, then the
+ * hardware will infer the Absolute Queue ID simply from the writes to
+ * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
+ * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
+ * write to the first BAR2 SGE Queue Area within the BAR2 Page with
+ * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
+ * from the BAR2 Page and BAR2 Queue ID.
+ *
+ * One important censequence of this is that some BAR2 SGE registers
+ * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
+ * there. But other registers synthesize the SGE Queue ID purely
+ * from the writes to the registers -- the Write Combined Doorbell
+ * Buffer is a good example. These BAR2 SGE Registers are only
+ * available for those BAR2 SGE Register areas where the SGE Absolute
+ * Queue ID can be inferred from simple writes.
+ */
+ bar2_qoffset = bar2_page_offset;
+ bar2_qinferred = (bar2_qid_offset < page_size);
+ if (bar2_qinferred) {
+ bar2_qoffset += bar2_qid_offset;
+ bar2_qid = 0;
+ }
+
+ *pbar2_qoffset = bar2_qoffset;
+ *pbar2_qid = bar2_qid;
+ return 0;
+}
+
+/**
+ * t4_init_sge_params - initialize adap->params.sge
+ * @adapter: the adapter
+ *
+ * Initialize various fields of the adapter's SGE Parameters structure.
+ */
+int t4_init_sge_params(struct adapter *adapter)
+{
+ struct sge_params *sge_params = &adapter->params.sge;
+ u32 hps, qpp;
+ unsigned int s_hps, s_qpp;
+
+ /* Extract the SGE Page Size for our PF.
+ */
+ hps = t4_read_reg(adapter, SGE_HOST_PAGE_SIZE);
+ s_hps = (HOSTPAGESIZEPF0_S +
+ (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * adapter->fn);
+ sge_params->hps = ((hps >> s_hps) & HOSTPAGESIZEPF0_M);
+
+ /* Extract the SGE Egress and Ingess Queues Per Page for our PF.
+ */
+ s_qpp = (QUEUESPERPAGEPF0_S +
+ (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * adapter->fn);
+ qpp = t4_read_reg(adapter, SGE_EGRESS_QUEUES_PER_PAGE_PF);
+ sge_params->eq_qpp = ((qpp >> s_qpp) & QUEUESPERPAGEPF0_MASK);
+ qpp = t4_read_reg(adapter, SGE_INGRESS_QUEUES_PER_PAGE_PF);
+ sge_params->iq_qpp = ((qpp >> s_qpp) & QUEUESPERPAGEPF0_MASK);
+
+ return 0;
+}
+
+/**
* t4_init_tp_params - initialize adap->params.tp
* @adap: the adapter
*
#define HOSTPAGESIZEPF2_SHIFT 8
#define HOSTPAGESIZEPF2(x) ((x) << HOSTPAGESIZEPF2_SHIFT)
-#define HOSTPAGESIZEPF1_MASK 0x0000000fU
-#define HOSTPAGESIZEPF1_SHIFT 4
-#define HOSTPAGESIZEPF1(x) ((x) << HOSTPAGESIZEPF1_SHIFT)
+#define HOSTPAGESIZEPF1_M 0x0000000fU
+#define HOSTPAGESIZEPF1_S 4
+#define HOSTPAGESIZEPF1(x) ((x) << HOSTPAGESIZEPF1_S)
-#define HOSTPAGESIZEPF0_MASK 0x0000000fU
-#define HOSTPAGESIZEPF0_SHIFT 0
-#define HOSTPAGESIZEPF0(x) ((x) << HOSTPAGESIZEPF0_SHIFT)
+#define HOSTPAGESIZEPF0_M 0x0000000fU
+#define HOSTPAGESIZEPF0_S 0
+#define HOSTPAGESIZEPF0(x) ((x) << HOSTPAGESIZEPF0_S)
#define SGE_EGRESS_QUEUES_PER_PAGE_PF 0x1010
#define SGE_EGRESS_QUEUES_PER_PAGE_VF_A 0x1014
u32 sge_host_page_size; /* PF0-7 page sizes */
u32 sge_egress_queues_per_page; /* PF0-7 egress queues/page */
u32 sge_ingress_queues_per_page;/* PF0-7 ingress queues/page */
+ u32 sge_vf_hps; /* host page size for our vf */
u32 sge_vf_eq_qpp; /* egress queues/page for our VF */
u32 sge_vf_iq_qpp; /* ingress queues/page for our VF */
u32 sge_fl_buffer_size[16]; /* free list buffer sizes */
int t4vf_fw_reset(struct adapter *);
int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
+enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };
+int t4_bar2_sge_qregs(struct adapter *adapter,
+ unsigned int qid,
+ enum t4_bar2_qtype qtype,
+ u64 *pbar2_qoffset,
+ unsigned int *pbar2_qid);
+
int t4vf_get_sge_params(struct adapter *);
int t4vf_get_vpd_params(struct adapter *);
int t4vf_get_dev_params(struct adapter *);
}
/**
+ * t4_bar2_sge_qregs - return BAR2 SGE Queue register information
+ * @adapter: the adapter
+ * @qid: the Queue ID
+ * @qtype: the Ingress or Egress type for @qid
+ * @pbar2_qoffset: BAR2 Queue Offset
+ * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
+ *
+ * Returns the BAR2 SGE Queue Registers information associated with the
+ * indicated Absolute Queue ID. These are passed back in return value
+ * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
+ * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
+ *
+ * This may return an error which indicates that BAR2 SGE Queue
+ * registers aren't available. If an error is not returned, then the
+ * following values are returned:
+ *
+ * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
+ * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
+ *
+ * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
+ * require the "Inferred Queue ID" ability may be used. E.g. the
+ * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
+ * then these "Inferred Queue ID" register may not be used.
+ */
+int t4_bar2_sge_qregs(struct adapter *adapter,
+ unsigned int qid,
+ enum t4_bar2_qtype qtype,
+ u64 *pbar2_qoffset,
+ unsigned int *pbar2_qid)
+{
+ unsigned int page_shift, page_size, qpp_shift, qpp_mask;
+ u64 bar2_page_offset, bar2_qoffset;
+ unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
+
+ /* T4 doesn't support BAR2 SGE Queue registers.
+ */
+ if (is_t4(adapter->params.chip))
+ return -EINVAL;
+
+ /* Get our SGE Page Size parameters.
+ */
+ page_shift = adapter->params.sge.sge_vf_hps + 10;
+ page_size = 1 << page_shift;
+
+ /* Get the right Queues per Page parameters for our Queue.
+ */
+ qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
+ ? adapter->params.sge.sge_vf_eq_qpp
+ : adapter->params.sge.sge_vf_iq_qpp);
+ qpp_mask = (1 << qpp_shift) - 1;
+
+ /* Calculate the basics of the BAR2 SGE Queue register area:
+ * o The BAR2 page the Queue registers will be in.
+ * o The BAR2 Queue ID.
+ * o The BAR2 Queue ID Offset into the BAR2 page.
+ */
+ bar2_page_offset = ((qid >> qpp_shift) << page_shift);
+ bar2_qid = qid & qpp_mask;
+ bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
+
+ /* If the BAR2 Queue ID Offset is less than the Page Size, then the
+ * hardware will infer the Absolute Queue ID simply from the writes to
+ * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
+ * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
+ * write to the first BAR2 SGE Queue Area within the BAR2 Page with
+ * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
+ * from the BAR2 Page and BAR2 Queue ID.
+ *
+ * One important censequence of this is that some BAR2 SGE registers
+ * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
+ * there. But other registers synthesize the SGE Queue ID purely
+ * from the writes to the registers -- the Write Combined Doorbell
+ * Buffer is a good example. These BAR2 SGE Registers are only
+ * available for those BAR2 SGE Register areas where the SGE Absolute
+ * Queue ID can be inferred from simple writes.
+ */
+ bar2_qoffset = bar2_page_offset;
+ bar2_qinferred = (bar2_qid_offset < page_size);
+ if (bar2_qinferred) {
+ bar2_qoffset += bar2_qid_offset;
+ bar2_qid = 0;
+ }
+
+ *pbar2_qoffset = bar2_qoffset;
+ *pbar2_qid = bar2_qid;
+ return 0;
+}
+
+/**
* t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
* @adapter: the adapter
*
*/
if (!is_t4(adapter->params.chip)) {
u32 whoami;
- unsigned int pf, s_qpp;
+ unsigned int pf, s_hps, s_qpp;
params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ_V(
whoami = t4_read_reg(adapter,
T4VF_PL_BASE_ADDR + A_PL_VF_WHOAMI);
pf = SOURCEPF_GET(whoami);
+
+ s_hps = (HOSTPAGESIZEPF0_S +
+ (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
+ sge_params->sge_vf_hps =
+ ((sge_params->sge_host_page_size >> s_hps)
+ & HOSTPAGESIZEPF0_M);
+
s_qpp = (QUEUESPERPAGEPF0_S +
(QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf);
sge_params->sge_vf_eq_qpp =
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