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path: root/drivers/net/sfc/base/hunt_nic.c
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Diffstat (limited to 'drivers/net/sfc/base/hunt_nic.c')
-rw-r--r--drivers/net/sfc/base/hunt_nic.c172
1 files changed, 9 insertions, 163 deletions
diff --git a/drivers/net/sfc/base/hunt_nic.c b/drivers/net/sfc/base/hunt_nic.c
index d03cc138..16ea81d2 100644
--- a/drivers/net/sfc/base/hunt_nic.c
+++ b/drivers/net/sfc/base/hunt_nic.c
@@ -36,7 +36,7 @@ hunt_nic_get_required_pcie_bandwidth(
goto out;
}
- if (port_modes & (1 << TLV_PORT_MODE_40G_40G)) {
+ if (port_modes & (1U << TLV_PORT_MODE_40G_40G)) {
/*
* This needs the full PCIe bandwidth (and could use
* more) - roughly 64 Gbit/s for 8 lanes of Gen3.
@@ -45,9 +45,9 @@ hunt_nic_get_required_pcie_bandwidth(
EFX_PCIE_LINK_SPEED_GEN3, &bandwidth)) != 0)
goto fail1;
} else {
- if (port_modes & (1 << TLV_PORT_MODE_40G)) {
+ if (port_modes & (1U << TLV_PORT_MODE_40G)) {
max_port_mode = TLV_PORT_MODE_40G;
- } else if (port_modes & (1 << TLV_PORT_MODE_10G_10G_10G_10G)) {
+ } else if (port_modes & (1U << TLV_PORT_MODE_10G_10G_10G_10G)) {
max_port_mode = TLV_PORT_MODE_10G_10G_10G_10G;
} else {
/* Assume two 10G ports */
@@ -76,90 +76,13 @@ fail1:
hunt_board_cfg(
__in efx_nic_t *enp)
{
- efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
- uint8_t mac_addr[6] = { 0 };
- uint32_t board_type = 0;
- ef10_link_state_t els;
efx_port_t *epp = &(enp->en_port);
- uint32_t port;
- uint32_t pf;
- uint32_t vf;
- uint32_t mask;
uint32_t flags;
uint32_t sysclk, dpcpu_clk;
- uint32_t base, nvec;
uint32_t bandwidth;
efx_rc_t rc;
- if ((rc = efx_mcdi_get_port_assignment(enp, &port)) != 0)
- goto fail1;
-
- /*
- * NOTE: The MCDI protocol numbers ports from zero.
- * The common code MCDI interface numbers ports from one.
- */
- emip->emi_port = port + 1;
-
- if ((rc = ef10_external_port_mapping(enp, port,
- &encp->enc_external_port)) != 0)
- goto fail2;
-
- /*
- * Get PCIe function number from firmware (used for
- * per-function privilege and dynamic config info).
- * - PCIe PF: pf = PF number, vf = 0xffff.
- * - PCIe VF: pf = parent PF, vf = VF number.
- */
- if ((rc = efx_mcdi_get_function_info(enp, &pf, &vf)) != 0)
- goto fail3;
-
- encp->enc_pf = pf;
- encp->enc_vf = vf;
-
- /* MAC address for this function */
- if (EFX_PCI_FUNCTION_IS_PF(encp)) {
- rc = efx_mcdi_get_mac_address_pf(enp, mac_addr);
- if ((rc == 0) && (mac_addr[0] & 0x02)) {
- /*
- * If the static config does not include a global MAC
- * address pool then the board may return a locally
- * administered MAC address (this should only happen on
- * incorrectly programmed boards).
- */
- rc = EINVAL;
- }
- } else {
- rc = efx_mcdi_get_mac_address_vf(enp, mac_addr);
- }
- if (rc != 0)
- goto fail4;
-
- EFX_MAC_ADDR_COPY(encp->enc_mac_addr, mac_addr);
-
- /* Board configuration */
- rc = efx_mcdi_get_board_cfg(enp, &board_type, NULL, NULL);
- if (rc != 0) {
- /* Unprivileged functions may not be able to read board cfg */
- if (rc == EACCES)
- board_type = 0;
- else
- goto fail5;
- }
-
- encp->enc_board_type = board_type;
- encp->enc_clk_mult = 1; /* not used for Huntington */
-
- /* Fill out fields in enp->en_port and enp->en_nic_cfg from MCDI */
- if ((rc = efx_mcdi_get_phy_cfg(enp)) != 0)
- goto fail6;
-
- /* Obtain the default PHY advertised capabilities */
- if ((rc = ef10_phy_get_link(enp, &els)) != 0)
- goto fail7;
- epp->ep_default_adv_cap_mask = els.els_adv_cap_mask;
- epp->ep_adv_cap_mask = els.els_adv_cap_mask;
-
/*
* Enable firmware workarounds for hardware errata.
* Expected responses are:
@@ -187,7 +110,7 @@ hunt_board_cfg(
else if ((rc == ENOTSUP) || (rc == ENOENT))
encp->enc_bug35388_workaround = B_FALSE;
else
- goto fail8;
+ goto fail1;
/*
* If the bug41750 workaround is enabled, then do not test interrupts,
@@ -206,7 +129,7 @@ hunt_board_cfg(
} else if ((rc == ENOTSUP) || (rc == ENOENT)) {
encp->enc_bug41750_workaround = B_FALSE;
} else {
- goto fail9;
+ goto fail2;
}
if (EFX_PCI_FUNCTION_IS_VF(encp)) {
/* Interrupt testing does not work for VFs. See bug50084. */
@@ -244,12 +167,12 @@ hunt_board_cfg(
} else if ((rc == ENOTSUP) || (rc == ENOENT)) {
encp->enc_bug26807_workaround = B_FALSE;
} else {
- goto fail10;
+ goto fail3;
}
/* Get clock frequencies (in MHz). */
if ((rc = efx_mcdi_get_clock(enp, &sysclk, &dpcpu_clk)) != 0)
- goto fail11;
+ goto fail4;
/*
* The Huntington timer quantum is 1536 sysclk cycles, documented for
@@ -266,80 +189,23 @@ hunt_board_cfg(
encp->enc_bug61265_workaround = B_FALSE; /* Medford only */
- /* Check capabilities of running datapath firmware */
- if ((rc = ef10_get_datapath_caps(enp)) != 0)
- goto fail12;
-
/* Alignment for receive packet DMA buffers */
encp->enc_rx_buf_align_start = 1;
encp->enc_rx_buf_align_end = 64; /* RX DMA end padding */
- /* Alignment for WPTR updates */
- encp->enc_rx_push_align = EF10_RX_WPTR_ALIGN;
-
- /*
- * Maximum number of exclusive RSS contexts which can be allocated. The
- * hardware supports 64, but 6 are reserved for shared contexts. They
- * are a global resource so not all may be available.
- */
- encp->enc_rx_scale_max_exclusive_contexts = 58;
-
- encp->enc_tx_dma_desc_size_max = EFX_MASK32(ESF_DZ_RX_KER_BYTE_CNT);
- /* No boundary crossing limits */
- encp->enc_tx_dma_desc_boundary = 0;
-
- /*
- * Set resource limits for MC_CMD_ALLOC_VIS. Note that we cannot use
- * MC_CMD_GET_RESOURCE_LIMITS here as that reports the available
- * resources (allocated to this PCIe function), which is zero until
- * after we have allocated VIs.
- */
- encp->enc_evq_limit = 1024;
- encp->enc_rxq_limit = EFX_RXQ_LIMIT_TARGET;
- encp->enc_txq_limit = EFX_TXQ_LIMIT_TARGET;
-
/*
* The workaround for bug35388 uses the top bit of transmit queue
* descriptor writes, preventing the use of 4096 descriptor TXQs.
*/
encp->enc_txq_max_ndescs = encp->enc_bug35388_workaround ? 2048 : 4096;
- encp->enc_buftbl_limit = 0xFFFFFFFF;
-
+ EFX_STATIC_ASSERT(HUNT_PIOBUF_NBUFS <= EF10_MAX_PIOBUF_NBUFS);
encp->enc_piobuf_limit = HUNT_PIOBUF_NBUFS;
encp->enc_piobuf_size = HUNT_PIOBUF_SIZE;
encp->enc_piobuf_min_alloc_size = HUNT_MIN_PIO_ALLOC_SIZE;
- /*
- * Get the current privilege mask. Note that this may be modified
- * dynamically, so this value is informational only. DO NOT use
- * the privilege mask to check for sufficient privileges, as that
- * can result in time-of-check/time-of-use bugs.
- */
- if ((rc = ef10_get_privilege_mask(enp, &mask)) != 0)
- goto fail13;
- encp->enc_privilege_mask = mask;
-
- /* Get interrupt vector limits */
- if ((rc = efx_mcdi_get_vector_cfg(enp, &base, &nvec, NULL)) != 0) {
- if (EFX_PCI_FUNCTION_IS_PF(encp))
- goto fail14;
-
- /* Ignore error (cannot query vector limits from a VF). */
- base = 0;
- nvec = 1024;
- }
- encp->enc_intr_vec_base = base;
- encp->enc_intr_limit = nvec;
-
- /*
- * Maximum number of bytes into the frame the TCP header can start for
- * firmware assisted TSO to work.
- */
- encp->enc_tx_tso_tcp_header_offset_limit = EF10_TCP_HEADER_OFFSET_LIMIT;
-
if ((rc = hunt_nic_get_required_pcie_bandwidth(enp, &bandwidth)) != 0)
- goto fail15;
+ goto fail5;
encp->enc_required_pcie_bandwidth_mbps = bandwidth;
/* All Huntington devices have a PCIe Gen3, 8 lane connector */
@@ -347,26 +213,6 @@ hunt_board_cfg(
return (0);
-fail15:
- EFSYS_PROBE(fail15);
-fail14:
- EFSYS_PROBE(fail14);
-fail13:
- EFSYS_PROBE(fail13);
-fail12:
- EFSYS_PROBE(fail12);
-fail11:
- EFSYS_PROBE(fail11);
-fail10:
- EFSYS_PROBE(fail10);
-fail9:
- EFSYS_PROBE(fail9);
-fail8:
- EFSYS_PROBE(fail8);
-fail7:
- EFSYS_PROBE(fail7);
-fail6:
- EFSYS_PROBE(fail6);
fail5:
EFSYS_PROBE(fail5);
fail4: